3 Coulomb’s law for electrostatic force between two point
charges and Newton’s law for gravitational force between two stationary
point masses, both have inverse-square dependence on the distance
between the charges and masses respectively (a) Compare the strength
of these forces by determining the ratio of their magnitudes (i) for an
electron and a proton and (ii) for two protons (b) Estimate the
accelerations of electron and proton due to the electrical force of their
mutual attraction when they are 1 Å (= 10-10 m) apart (mp = 1