Question

please question solov

Answer 1

$f = \frac{kq1 \times q2}{ {r}^{2} } \\ 64 \times {10}^{ - 8} {r}^{2} = 8 \times 2 \times {10}^{ - 4} \times 9 \times {10}^{9} \\ {r}^{2} = \frac{9}{4} {10}^{13} \\ r = \frac{3}{2} \times {10}^{6} \times \sqrt{10} \\ 1.5 \times {10}^{ \frac{13}{2} }$
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