tag:blogger.com,1999:blog-90979655400975231432024-02-07T14:27:12.441-08:00Os Fundamentos da Física 2Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.comBlogger10174125tag:blogger.com,1999:blog-9097965540097523143.post-35810788193996076052020-12-10T15:23:00.001-08:002020-12-10T15:40:16.271-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 4:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Numa reação química, há o envolvimento entre elétrons e núcleos atômicos eletrizados. Portanto, trata-se de uma manifestação de força eletromagnética.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: c</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
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<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-54514471787956556702020-12-10T15:21:00.004-08:002020-12-10T15:39:27.069-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula </span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 3:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">0: <b>verdadeira</b></span><br />
<span face=""verdana" , sans-serif">A força de interação entre massas é a força gravitacional</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">1: <b>verdadeira</b></span><br />
<span face=""verdana" , sans-serif">A força eletromagnética é a que existe entre partículas eletrizadas, englobando as forças elétricas e as forças magnéticas.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">2: <b>verdadeira</b></span><br />
<span face=""verdana" , sans-serif">A força nuclear forte mantém a coesão do núcleo atômico e garante a união dos quarks para formarem os prótons e os nêutrons, assim como a ligação dos prótons entre si, equilibrando a força eletrostática repulsiva entre cargas de mesmo sinal.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">3: <b>Falsa</b></span><br />
<span face=""verdana" , sans-serif">A força nuclear fraca tem intensidade menor que a força eletromagnética.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">4: <b>verdadeira</b></span><br />
<span face=""verdana" , sans-serif">A força gravitacional é a menos intensa das quatro forças.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Verdadeiras</b> (coluna I): 0, 1, 2 e 4</span><br />
<span face=""verdana" , sans-serif"><b>Falsa</b> (coluna II): 3</span><br />
<span face=""verdana" , sans-serif"><br /></span>
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<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-33533115413835016872020-12-10T15:20:00.003-08:002020-12-10T15:38:37.681-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 2:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">As nomenclaturas das quatro forças fundamentais da natureza, omitidas no texto são:</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">i) força nuclear forte,</span><br />
<span face=""verdana" , sans-serif">ii) força nuclear fraca,</span><br />
<span face=""verdana" , sans-serif">iii) força eletromagnética,</span><br />
<span face=""verdana" , sans-serif">iv) força gravitacional.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: c</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
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<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-33419331173596963102020-12-10T15:18:00.002-08:002020-12-10T15:37:53.230-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 1:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">A força normal e a força de tração são de origem eletromagnética.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: c</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
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<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-44930036174018821692020-12-10T15:07:00.004-08:002020-12-10T15:37:10.441-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span><br />
<br />
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 5: resolução</b></span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Numa reação química há o envolvimento entre os elétrons e os núcleos atômicos eletrizados. Portanto, trata-se de uma manifestação de forças eletromagnéticas.<br /><br /><b>Resposta: c</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade_54.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-16590980538294775702020-12-10T15:05:00.004-08:002020-12-10T15:36:25.002-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span><br />
<br />
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 4: resolução</b></span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: a</b></span><br />
<div style="text-align: left;">
<span face=""verdana" , sans-serif"><b><span style="color: white;">x</span></b></span><br />
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade_54.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span></div>
Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-34435876364895708932020-12-10T15:04:00.004-08:002020-12-10T15:35:35.511-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span><br />
<br />
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 3: resolução</b></span><br />
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif"><b><br /></b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif"><b>Coluna I: 0, 1, 2 e 4, verdadeiras; Coluna II: 3, falsa</b></span> </div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif"><b><span style="color: white;">x</span></b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade_54.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span></div>
Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-77184305922959065802020-12-10T15:02:00.003-08:002020-12-10T15:02:49.349-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span><br />
<br />
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 2: resolução</b></span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta:</b></span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>B => I</b></span><br />
<span face=""verdana" , sans-serif"><b>C => I</b></span><br />
<span face=""verdana" , sans-serif"><b>D => II</b></span><br />
<span face=""verdana" , sans-serif"><b>A => IV</b></span><br />
<span face=""verdana" , sans-serif"><b><span style="color: white;">x</span></b></span><br />
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2019/12/cursos-do-blog-eletricidade_11.html">aqui</a> para voltar ao Blog</b></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-31865120404266957712020-12-10T15:01:00.002-08:002020-12-10T15:33:53.515-08:00Cursos do Blog - Eletricidade<b><span face=""verdana" , sans-serif">39ª aula</span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">As forças fundamentais da Natureza</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: xx-small;"><b><span style="color: white;">x</span></b></span></span><br />
<span face=""verdana" , sans-serif" style="font-size: x-small;"><span style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<span face=""verdana" , sans-serif"><span style="color: white;">x</span></span><br />
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span><br />
<br />
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 1: resolução</b></span><br />
<br />
<span face=""verdana" , sans-serif">A força de atrito e a força normal resultam da interação entre partículas eletrizadas próximas. São, portanto, forças eletromagnéticas.<br /><br /><b>Resposta: c</b></span><br />
<span face=""verdana" , sans-serif"><b><span style="color: white;">x</span></b></span><br />
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade_54.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-83352770436490370742020-12-09T14:50:00.003-08:002020-12-09T15:04:44.782-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000;"><b><br /></b></span>
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 4:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif"> = h/p => 780.1</span><span face=""verdana" , sans-serif">0</span><sup style="font-family: Verdana, sans-serif;">-9</sup><span face=""verdana" , sans-serif">m= </span><span face=""verdana" , sans-serif">6,63.10</span><sup style="font-family: Verdana, sans-serif;">-34</sup><span face=""verdana" , sans-serif">J.s/p => p = </span><span face=""verdana" , sans-serif">8,5.1</span><span face=""verdana" , sans-serif">0</span><sup style="font-family: Verdana, sans-serif;">-28</sup><span face=""verdana" , sans-serif"> J.s/m</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: d</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
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<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-11190601342091485982020-12-09T14:49:00.002-08:002020-12-09T15:02:39.078-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000;"><b><br /></b></span>
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 3:</span> </span>resolução</span></b><br />
<br />
<span face=""verdana" , sans-serif">A) O comprimento de onda de De Broglie é dado por λ = h/p onde h é a constante de Planck, e p é o momentum da partícula. </span><br />
<span face=""verdana" , sans-serif"></span><br />
<span face=""verdana" , sans-serif">B) Uma vez que o momentum é dado por mv, onde m indica a massa, e v, a velocidade da partícula, observamos que as partículas com mesma velocidade, mas massas diferentes, não podem ter o mesmo comprimento de onda de De Broglie.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-69783553413400853082020-12-09T14:47:00.004-08:002020-12-09T15:01:51.706-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000;"><b><br /></b></span>
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 2:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Os fenômenos apresentados nas alternativas a), b) e d) mostram que a luz se comporta como partícula na “colisão” com elétrons da matéria. A difração de elétrons evidencia o comportamento ondulatório de partículas subatômicas.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">A propagação, no vácuo, de ondas de rádio não está relacionado com o dualismo onda-partícula.</span><br />
<b style="font-family: Verdana, sans-serif;"><br /></b>
<b style="font-family: Verdana, sans-serif;">Resposta: e</b><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-38599906827487698502020-12-09T14:46:00.001-08:002020-12-09T14:46:17.607-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000;"><b><br /></b></span>
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 1:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">As naturezas corpuscular e ondulatória não são antagônicas mas, sim, complementares: é a complementaridade de Bohr.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: b</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2019/11/cursos-do-blog-eletricidade_27.html">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-85271204903723817752020-12-09T14:44:00.004-08:002020-12-09T15:00:59.856-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<br />
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #134f5c;"><b><br /></b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 4: resolução</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif"><br />O comprimento de onda associado à bola de futebol é extremamente pequeno quando comparado com suas dimensões. Por isso, não podemos observar efeitos ondulatórios como, por exemplo, a difração. Lembre-se que a difração só será nítida se as dimensões da abertura ou do obstáculo forem da ordem de grandeza do comprimento de onda da onda incidente. O comprimento de onda associado ao elétron é da ordem do comprimento de onda dos raios X, realçando que sempre existem, associadas às partículas ao nível atômico, as propriedades das ondas.</span></div>
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-67010210089349876372020-12-09T14:43:00.003-08:002020-12-09T14:58:48.999-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<br />
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #134f5c;"><b><br /></b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 3: resolução</b></span></div>
<br />
<span face=""verdana" , sans-serif">λ = h/(m.v) => </span><span face=""verdana" , sans-serif"><span face=""verdana" , sans-serif">λ</span> =</span><span face=""verdana" , sans-serif"> 6,63.10<sup>-34</sup>/(</span>400.10<sup>-3</sup><span face=""verdana" , sans-serif">.</span><span face=""verdana" , sans-serif">10) =><span face=""verdana" , sans-serif"><span style="font-family: "times" , "times new roman" , serif; font-size: large;"> </span>λ</span> </span><span face=""verdana" , sans-serif">≅ 1,7.</span><span face=""verdana" , sans-serif">10<sup>-34</sup> m</span><br />
<br />
<b><span face=""verdana" , sans-serif">Resposta:</span><span face=""verdana" , sans-serif"> </span><span face=""verdana" , sans-serif"><span face=""verdana" , sans-serif">λ</span> </span><span face=""verdana" , sans-serif">≅ 1,7.</span><span face=""verdana" , sans-serif">10<sup>-34</sup> m</span></b><br />
<br />
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-83797578250271590162020-12-09T14:41:00.004-08:002020-12-09T14:59:35.256-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif"><b>37ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"><b>O caráter dual da luz</b></span><br />
<br />
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;"><b>Exercícios básicos</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #134f5c;"><b><br /></b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: blue; font-size: x-small;"><b>Borges e Nicolau</b></span></div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
<span face=""verdana" , sans-serif" style="color: #666666; font-size: large;"><b>Exercício 2: resolução</b></span></div>
<br />
<span face=""verdana" , sans-serif">λ = h/(m.v) => </span><span face=""verdana" , sans-serif"><span face=""verdana" , sans-serif">λ</span> =</span><span face=""verdana" , sans-serif"> 6,63.10<sup>-34</sup>/(</span>9,11.10<sup>-31</sup><span face=""verdana" , sans-serif">.</span><span face=""verdana" , sans-serif">3,0.10<sup>6</sup>) =><span face=""verdana" , sans-serif"><span style="font-family: "times" , "times new roman" , serif; font-size: large;"> </span>λ</span> </span><span face=""verdana" , sans-serif">≅ 2,4.</span><span face=""verdana" , sans-serif">10<sup>-10</sup> m</span><br />
<br />
<b><span face=""verdana" , sans-serif">Resposta:</span><span face=""verdana" , sans-serif"> </span><span face=""verdana" , sans-serif"><span face=""verdana" , sans-serif">λ</span> </span><span face=""verdana" , sans-serif"><span face=""verdana" , sans-serif">≅</span> 2,4.</span><span face=""verdana" , sans-serif">10<sup>-10</sup> m</span></b><br />
<br />
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-57467689345751843842020-12-09T14:40:00.002-08:002020-12-09T14:58:06.619-08:00Cursos do Blog - Eletricidade<span face=""verdana" , sans-serif" style="line-height: 115%;"><b>3<span face=""verdana" , sans-serif">7</span>ª aula</b></span><br />
<span face=""verdana" , sans-serif" style="color: #990000; font-size: large; line-height: 115%;"><b>Efeito Fotoelétrico</b> <b>(II)</b></span><br />
<br />
<span style="font-size: x-small; line-height: 115%;"><span face=""verdana" , sans-serif" style="color: blue;"><b>Borges e Nicolau</b></span></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 1:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Para que ocorra efeito fotoelétrico a energia transportada pelo fóton (E = h.f) deve ser maior do que a quantidade mínima de energia </span><span style="font-family: "georgia" , "times new roman" , serif;">Φ</span><span face=""verdana" , sans-serif"> (função trabalho) que um elétron necessita receber para ser extraído do metal. Portanto, para que haja emissão, deve-se aumentar a frequência da luz incidente.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: b</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-eletricidade.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-37053791333813081402020-12-08T14:31:00.004-08:002020-12-08T14:55:05.085-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 5:</span> </span>resolução</span></b><br />
<br />
<span face=""verdana" , sans-serif">f = v/4L => f = 340/4.2,5.10<sup>-2</sup> => f = 3,4.10<sup>3</sup> Hz</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<b><span face=""verdana" , sans-serif">Resposta: </span><span face=""verdana" , sans-serif">3,4.10<sup>3</sup> Hz</span></b><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-71233500989178513592020-12-08T14:30:00.003-08:002020-12-08T14:54:09.754-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;">Exercícios de Revisão</span></b><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 4:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br />f<sub>Sol</sub> = (4/5).f<sub>Si</sub> => v</span><sub style="font-family: Verdana, sans-serif;">Sol</sub><span face=""verdana" , sans-serif">/2L = (4/5).v</span><sub style="font-family: Verdana, sans-serif;">Si</sub><span face=""verdana" , sans-serif">/2L => </span><span face=""verdana" , sans-serif">v</span><sub style="font-family: Verdana, sans-serif;">Sol</sub><span face=""verdana" , sans-serif"> = (4/5).</span><span face=""verdana" , sans-serif">v</span><sub style="font-family: Verdana, sans-serif;">Si</sub><span face=""verdana" , sans-serif"> =></span><br />
<span face=""verdana" , sans-serif">√(</span><span face=""verdana" , sans-serif">f</span><sub style="font-family: Verdana, sans-serif;">Sol</sub><span face=""verdana" , sans-serif">/</span><span face=""verdana" , sans-serif">μ</span><span face=""verdana" , sans-serif">) = (4/5)</span><span face=""verdana" , sans-serif">√(</span><span face=""verdana" , sans-serif">f</span><sub style="font-family: Verdana, sans-serif;">Si</sub><span face=""verdana" , sans-serif">/</span><span face=""verdana" , sans-serif">μ</span><span face=""verdana" , sans-serif">) =></span><br />
<span face=""verdana" , sans-serif">f</span><sub style="font-family: Verdana, sans-serif;">Sol</sub><span face=""verdana" , sans-serif"> = (16/25).</span><span face=""verdana" , sans-serif">f</span><sub style="font-family: Verdana, sans-serif;">Si</sub><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: b</b></span><br />
<b><span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-34542461687332995442020-12-08T14:28:00.004-08:002020-12-08T14:53:18.859-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 3:</span> </span>resolução</span></b><br />
<span face=""verdana" , sans-serif"><br />f<sub>M</sub> = 2.f<sub>m</sub> => v</span><sub style="font-family: Verdana, sans-serif;">M</sub><span face=""verdana" , sans-serif">/2L = 2.v</span><sub style="font-family: Verdana, sans-serif;">m</sub><span face=""verdana" , sans-serif">/2L => </span><span face=""verdana" , sans-serif">v</span><sub style="font-family: Verdana, sans-serif;">M</sub><span face=""verdana" , sans-serif"> = 2.</span><span face=""verdana" , sans-serif">v</span><sub style="font-family: Verdana, sans-serif;">m</sub><span face=""verdana" , sans-serif"> =></span><br />
<span face=""verdana" , sans-serif">√</span><span face=""verdana" , sans-serif">(F/</span><span face=""verdana" , sans-serif">μ</span><sub style="font-family: Verdana, sans-serif;">M</sub><span face=""verdana" , sans-serif">) = 2.</span><span face=""verdana" , sans-serif">√</span><span face=""verdana" , sans-serif">(F/</span><span face=""verdana" , sans-serif">μ</span><sub style="font-family: Verdana, sans-serif;">m</sub><span face=""verdana" , sans-serif">) = </span><span face=""verdana" , sans-serif">μ</span><sub style="font-family: Verdana, sans-serif;">m</sub><span face=""verdana" , sans-serif">/</span><span face=""verdana" , sans-serif">μ</span><sub style="font-family: Verdana, sans-serif;">M</sub><span face=""verdana" , sans-serif"> = 4</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: b</b></span><br />
<b><span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</span></b><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-36788733277867126932020-12-08T14:27:00.002-08:002020-12-08T14:52:30.687-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 2:</span> </span>resolução</span></b><br />
<br />
<span face=""verdana" , sans-serif">A) Correta. A propagação do som não ocorre no vácuo, isto é, só ocorre em um meio material.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">B) Correta. O maior comprimento de onda possível corresponde ao modo mais simples de a corda vibrar, isto é a um nó em cada extremidade e entre eles um único ventre.</span><span face=""verdana" , sans-serif"><br /></span><br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjStLDjfibrWIiR9HCYu-bebDfONhbKbAzxETQjUJ5iZRSf3xTNrE_mu0hsAzba5iG8LDz-Mc42oN6l-gohToqWGhpw44H6McJMcepT_S-mlaHIdrbP8Em5XrwW4KDBptt1z9eGDprBsU8/s1600/zzer%C3%A72.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjStLDjfibrWIiR9HCYu-bebDfONhbKbAzxETQjUJ5iZRSf3xTNrE_mu0hsAzba5iG8LDz-Mc42oN6l-gohToqWGhpw44H6McJMcepT_S-mlaHIdrbP8Em5XrwW4KDBptt1z9eGDprBsU8/s1600/zzer%C3%A72.png" /></a></div>
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">Sendo L ao comprimento da corda, obtemos: L = λ/2 => </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif"> = 2L</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">C) Correta. De v = √(F/μ) => v<sup>2</sup> = F/(m/L) => </span><span face=""verdana" , sans-serif">v</span><sup style="font-family: Verdana, sans-serif;">2</sup><span face=""verdana" , sans-serif"> = F.L/m</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">D) Incorreta. No tubo sonoro fechado temos sempre um ventre na embocadura e um nó na outra extremidade. O modo mais simples de vibração é representado abaixo:</span><br />
<span face=""verdana" , sans-serif"><br /></span>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIqj7BThsRyq9yPLvVl8aDWz1Lgj1bPwJVcT8OCW4TqyJ5KELJ-29gcJM6ZFXkjK16HstDm82buB2sRqinXkFn6T-7gJt15hv6fk5F8q80K7c5Ayzsh5eQj0IVS97xZ2P_4wn7wpOBO3s/s1600/zzer%C3%A73.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIqj7BThsRyq9yPLvVl8aDWz1Lgj1bPwJVcT8OCW4TqyJ5KELJ-29gcJM6ZFXkjK16HstDm82buB2sRqinXkFn6T-7gJt15hv6fk5F8q80K7c5Ayzsh5eQj0IVS97xZ2P_4wn7wpOBO3s/s1600/zzer%C3%A73.png" /></a></div>
<span face=""verdana" , sans-serif">Temos: L = </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">/4 => </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif"> = 4L</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Resposta: d</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-21252090758755380442020-12-08T14:25:00.004-08:002020-12-08T14:51:35.283-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<span style="color: #274e13;"><b><span face=""verdana" , sans-serif" style="font-size: large;">Exercícios de Revisão</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif"><span style="color: #b45f06;"><span style="font-size: large;">Revisão/Ex 1:</span> </span>resolução</span></b><br />
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<span face=""verdana" , sans-serif">a) Com a corda vibrando no seu modo fundamental, temos dois nós nas extremidades e um ventre. Logo,</span><br />
<br />
<span face=""verdana" , sans-serif">λ/2 = L => λ/2 = 0,35 m => λ = 0,70 m</span><br />
<span face=""verdana" , sans-serif">v = </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">.f => v = 0,7.680 => v = 476 m/s</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">b) A frequência fundamental da onda sonora é a frequência fundamental de vibração da corda.</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif">v = </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">.f => 340 = </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">.</span><span face=""verdana" , sans-serif">680 => </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif"> = 0,50 m</span><br />
<span face=""verdana" , sans-serif"><br /></span>
<span face=""verdana" , sans-serif"><b>Respostas; a) 476 m/s b) 0,50 m</b></span><br />
<span face=""verdana" , sans-serif"><b><br /></b></span>
<span face=""verdana" , sans-serif"><b>Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</b></span><br />
<span face=""verdana" , sans-serif"><span style="font-size: large;"><b></b></span></span>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-80206853683849427702020-12-08T14:24:00.002-08:002020-12-08T14:50:44.330-08:00Cursos do Blog - Termologia, Óptica e Ondas<b><span face=""verdana" , sans-serif" style="font-size: small;">39° aula</span><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;"> </span></b><br />
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b><br />
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;">Exercícios básicos</span></b><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #666666; font-size: large;">Exercício 6: resolução</span></b><br />
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<b><span face=""verdana" , sans-serif">Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</span></b>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-23263124049732380612020-12-08T14:23:00.001-08:002020-12-08T14:49:56.932-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;">Exercícios básicos</span></b><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #666666; font-size: large;">Exercício 5: resolução</span></b><br />
<br />
<b><span face=""verdana" , sans-serif">Tubo aberto:</span></b><b><span face=""verdana" , sans-serif"><br /></span></b><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhcx5ivzQkLyUlsS7Rl4FSN0nDUI0CgQU_ol45G1Q7HMDZRzrtvAvQw-1kVXdRnDAFm5MEfZoVEjLeXexguc4F3CbFvqBJ3K_68fV0MxP6Xf2R0LQCrsOvhsf0ZocUU2NtgRtnYdHoDF8k/s1600/k5.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="58" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhcx5ivzQkLyUlsS7Rl4FSN0nDUI0CgQU_ol45G1Q7HMDZRzrtvAvQw-1kVXdRnDAFm5MEfZoVEjLeXexguc4F3CbFvqBJ3K_68fV0MxP6Xf2R0LQCrsOvhsf0ZocUU2NtgRtnYdHoDF8k/s320/k5.png" width="320" /></a></div>
<br />
<span face=""verdana" , sans-serif" style="font-size: small;"><b>Tubo fechado</b></span>:<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiG-QDkRapU68fZxZB1aJAmq-1qCZaKdwkGKZHrvBGVxyEmQdw7l4kacbu2ImaCBlmpyedC4BlJGBaiq1zWaryEe-n9u-bPxj2srmxXhVYejUs0Bsv-grL9wvI1WNCJs-w3mZ663JMjd4/s1600/k6.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="56" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiG-QDkRapU68fZxZB1aJAmq-1qCZaKdwkGKZHrvBGVxyEmQdw7l4kacbu2ImaCBlmpyedC4BlJGBaiq1zWaryEe-n9u-bPxj2srmxXhVYejUs0Bsv-grL9wvI1WNCJs-w3mZ663JMjd4/s320/k6.png" width="320" /></a></div>
<br />
<b><span face=""verdana" , sans-serif">Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</span></b>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0tag:blogger.com,1999:blog-9097965540097523143.post-32665353329700174252020-12-08T14:21:00.004-08:002020-12-08T14:49:09.534-08:00Cursos do Blog - Termologia, Óptica e Ondas<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif">39ª aula</span></b></div>
<div class="separator" style="clear: both; text-align: left;">
<b><span face=""verdana" , sans-serif" style="color: #990000; font-size: large;">Cordas vibrantes / Tubos sonoros</span></b></div>
<div style="text-align: left;">
<br /></div>
<span style="font-size: x-small;"><b style="color: blue;"><span face=""verdana" , sans-serif">Borges e Nicolau</span></b></span><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #134f5c; font-size: large;">Exercícios básicos</span></b><br />
<br />
<b><span face=""verdana" , sans-serif" style="color: #666666; font-size: large;">Exercício 4: resolução</span></b><br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8M5Ug8CnRFn6J2Dndb3eLkBQjnvmabS6tgYhQbc-uUX-B_4QVs6joLv3rHumDELgICtf08UdjfgipT7rMDRUll4fFqmQQ6Iubn2-rRQf8mzv6f39lKikS87hnRITNgkig8_pS1SYCkhc/s1600/rexzolv100.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="117" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8M5Ug8CnRFn6J2Dndb3eLkBQjnvmabS6tgYhQbc-uUX-B_4QVs6joLv3rHumDELgICtf08UdjfgipT7rMDRUll4fFqmQQ6Iubn2-rRQf8mzv6f39lKikS87hnRITNgkig8_pS1SYCkhc/s320/rexzolv100.png" width="320" /></a></div>
<br />
<span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">/4 + </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">/2 + </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif">/2 </span><span face=""verdana" , sans-serif">= L => </span><span face=""verdana" , sans-serif">λ</span><span face=""verdana" , sans-serif"> = 4.L/5 e f = 5.v/4.L</span><br />
<br />
<b><span face=""verdana" , sans-serif">Clique <a href="https://osfundamentosdafisica.blogspot.com/2020/12/cursos-do-blog-termologia-optica-e-ondas_8.html" rel="nofollow">aqui</a> para voltar ao Blog</span></b>Professor Nicolauhttp://www.blogger.com/profile/08248864091482380605noreply@blogger.com0