Respostas

2013-09-24T18:39:34-03:00
50cm = 0,5m

E = K * Q / d²

E = 9*10^9 * 6*10^-6 / (0,5)²

E = 54 * 10^3 / 2,5*10^-1

E = 21,6 * 10^2

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E = 21600 N/C
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