Physics

Problem

(Electrostatic versus gravitational interaction) Two protons are separated by a distance of

5.0\,\text{fm}

(

1\,\text{fm}=1\times10^{-15}\,\text{m}

). a. (i) Calculate the magnitude of the electrostatic force between the two protons. b. (ii) Calculate the gravitational force of attraction between the same protons, taking the mass of a proton as

1.67\times10^{-27}\,\text{kg}

and

G=6.67\times10^{-11}\,\text{N\,m}^{2}\text{/kg}^{2}

. c. (iii) Compute the ratio

\dfrac{F_{\text{electrostatic}}}{F_{\text{gravitational}}}

and comment briefly on its physical significance for atomic-scale interactions.

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