What is the electric force between a glass ball that has +2.5 µC of charge and a rubber ball that has -4.1 µC
of charged when they are seperated by 5cm
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k= 9* 10^9
q is charge on one body and q' is the charge on the other in coulombs and r is the dist of separation between them
convert charge µC= 10^(-6)C and r in meters
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