Respostas

2014-02-20T14:16:04-03:00
F= 9^9 . 3,0^-8 . 3^-9 \ 0,1^2
F= 8,1^-5 N
1 5 1
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2014-02-20T14:17:05-03:00
Resposta

d = 10cm = 0,1m


F = k.Q.q/d²

F = 9.10^9 . 3.10^-8 . 3.10^-9 /0,1²

F = 81.10^-8 /0,01

F = 8100.10^-8

F = 8,1.10^{-5} N
3 5 3