Two protons are 1 × 10−10 m apart (about one atomic radius). Which interaction between two protons is stronger, the gravitational attraction or the electric repulsion? Note that since both the gravitational and electric forces depend on the inverse square distance, this comparison holds true at all distances, not just at a distance of 1 × 10−10 m. Use the accurate values of G = 6.67 × 10−11 N·m2/kg2, proton mass of 1.67 × 10−27 kg, and electron mass of 9.11 × 10−31 kg.

a) First, calculate the electric force |Felec| = ___ N

b) Next, calculate the gravitational force |F grav| = ___ N

c) Calculate the ratio of the two forces |Felec|/|Fgrav| = ___