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/masses. Estimate the accelerations of electron and proton due to the electrical force of their mutual attraction when they are $1 \mathring{A} =(10^{-10}\;m)$ apart? $(mp = 1.67 × 10^{–27}\; kg, m_e = 9.11 × 10^{–31}\; kg)$

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