Respostas

2014-03-07T10:25:20-03:00
Resposta

q1 = 5.10⁻¹²C
q2 = 1,2.10⁻¹²C
F = 9.10⁻¹²N

F = k.q1.q2 /d²

9.10⁻¹² = 9.10⁹.5.10⁻¹².1,2.10⁻¹²/d²

d² = 54.10⁻¹⁵ /9.10⁻¹²

d² = 6.10⁻¹⁵.10¹²

d² = 6.10⁻³

d = √60.10⁻⁴

d = 7,7.10⁻²m
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