A Two Protons In Molecule

(a) Two protons in a molecule are separated by 3.80 x 10−10 m. Find the electric force exerted by one proton on the other.
(b) How does the magnitude of this force compare to the magnitude of the gravitational force between the two protons?
(c) What If? What must be the charge-to-mass ratio of a particle if the magnitude of the gravitational force between two of these particles equals the magnitude of electric force between them?

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