Respostas

2014-06-10T14:45:04-03:00
Fórmula :

E = K. Q/ d²

 - 4PC = - 4.10⁻¹² C


9.10^-^1 =  \frac{9.10^9 .(4.10^-^1^2) }{d^2}

9.10^-^1 =  \frac{36.10^-^3 }{d^2}

d^2 =   \frac{36.10^-^3}{9.10^-^1}

d^2 =  4.10^-^2

d=  \sqrt{4.10^-^2} = 2.10^-^1 =  0,2m

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