Respostas

2014-03-18T10:38:10-03:00
Resposta

F = k. \frac{Q.q}{d ^{2} }

5,7 = 9.10 ^{9} . \frac{26.10 ^{-6}.47.10 ^{-6}  }{d^{2} }

d ^{2}  =  \frac{10998.10 ^{-3} }{5,7}

d² = 10,998 / 5,7

d² = 1,929

d = √1,929

d = 1,388m