Respostas

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2013-08-20T17:48:35-03:00
F = k* |Q|² / d²

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

F = 9 * 10^9 * 4 * 10^-18 / 9 * 10^-9

F = 4 * 10^-9 / 10^-9

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F = 4N 
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