Nadine is solving for the distance(cm) of 2 charges. The 2 charges contain a magnitude of 400N between them. He also noted that they both have a charge of 39µC. What should be his computed answer?

Question

Nadine is solving for the distance(cm) of 2 charges. The 2 charges contain a magnitude of 400N between them. He also noted that they both have a charge of 39µC. What should be his computed answer?

A. 0.0342

B. 0.185

C. 3.42

D. 18.5

Answer 1

F= 9*10^9*39*10^ -6*39*10*-6*/r^2

plug in F =400

Get r

r= 0.185 m

r in cm = 18.5 is the answer