Respostas

A melhor resposta!
2014-06-10T00:06:57-03:00
F = k * |Q*q| / d²
10^-9 = 9*10^9 * (10^-19)² / d²
d² = 9*10^9 * 10^-38 / 10^-9
d² = 9 * 10^18 * 10^-38
d² = 9 * 10^-20

d = 3 * 10^-10 metros
**************************
2 5 2