quarta-feira, 26 de fevereiro de 2020

Cursos do Blog - Eletricidade

4ª aula
Lei de Coulomb (II)

Borges e Nicolau

Exercícios de Revisão

Revisão/Ex 4: resolução

Para que seja mantido o equilíbrio horizontal da haste as forças de atração de B em A e de D em C devem ter as mesmas intensidades:
BA = FDC =>
k.IQBI.IQAI/(1mm)2 = k.IQDI.IQCI/(2mm)2
Sendo IQBI = IQCI = IQDI = Q, vem:
IQAI = Q/4 => QA = Q/4

Resposta: A

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Um comentário:

  1. This is how my colleague Wesley Virgin's autobiography begins with this SHOCKING AND CONTROVERSIAL video.

    Wesley was in the army-and soon after leaving-he revealed hidden, "mind control" tactics that the CIA and others used to get anything they want.

    These are the EXACT same methods lots of celebrities (notably those who "come out of nowhere") and elite business people used to become wealthy and famous.

    You probably know that you use only 10% of your brain.

    Really, that's because the majority of your brain's power is UNTAPPED.

    Perhaps that conversation has even occurred INSIDE OF YOUR very own head... as it did in my good friend Wesley Virgin's head about seven years ago, while riding an unregistered, beat-up trash bucket of a vehicle with a suspended driver's license and with $3 on his banking card.

    "I'm so frustrated with living check to check! Why can't I become successful?"

    You've taken part in those thoughts, isn't it so?

    Your success story is going to start. You just need to take a leap of faith in YOURSELF.

    Watch Wesley Virgin's Video Now!