Two statically charged balloons feel a repulsive force of 0.84 N. If the balloons are charged...
Homework Answers
F = k q1 q2/(r^2)
==> r = sqrt(k q1 q2/F)
==> r = sqrt((9e9)*(4.5e-6)*(0.71e-6)/(0.84))
==> r = 0.185 m
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