A shower of protons from outer space deposits equal charges +q on the earth and the moon, and the electrostatic repulsion exactly counter balances the gravitational attraction, How large is q ?

A shower of protons from outer space deposits equal charges +q on the

1.	A shower of protons from outer space deposits equal charges +q on the earth and the moon, and the electrostatic repulsion exactly counter balances the gravitational attraction, How large is q ?
Answer» Solution :Here, ELECTROSTATIC repulsive FORCE= gravitational ATTRACTIVE force i.e., `(1)/(4pi in_(0)).(q^(2))/(r^(2)) = (GM_(e )M_(m))/(r^(2)) or q= sqrt(4pi in_(0)GM_(e)M_(m))`

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A shower of protons from outer space deposits equal charges +q on the earth and the moon, and the electrostatic repulsion exactly counter balances the gravitational attraction, How large is q ?

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