Respostas

2013-08-17T16:30:37-03:00
2uC = 2*10^-6C

-3uC = -3*10^-6C

30cm = 0,3m = 3*10^-1 metros
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F = k*|Q²|/d²


F = ( 9*10^9 * |2*10^-6 * -3*10^-6| ) / (3*10^-1)²

F = 9*10^9 * 6*10^-12 / 9*10^-2

F = 6*10^-3 * 10^2

F = 6*10^-1

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F = 0,6N
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amigo e o que e 10^-1 e o mesmo que 10 sobre um
0,1 = 10^ (-1)