Respostas

2014-02-23T16:56:02-03:00
Resposta

d = 15cm = 0,15m

Q = 3.10⁻⁵C
q = 3.10⁻⁵C

F = k.Q.q /d²

F = 9.10⁹.3.10⁻⁵ . 3.10⁻⁵ /0,15²

F = 81.10⁻¹ / 0,0225

F = 3600.10⁻¹

F = 360N
9 4 9