Respostas

2013-09-14T01:04:06-03:00
F = K.Q1.Q2 / d²
10 = 9x10^9 . 10x10^-6 . 10x10^-6  / d²
10 = 900x10^-3 / d²
d² = 900x10^-3 - 10
d² = 890x10^-3
d² = 89x10^-2
d =  \sqrt{89x10*-2}

d = 9,4x10^-2
d = 0,9x10 metros