Two protons are separated by a distance of 2.0x10^-5 m. What is their electrical potential energy?

Answer 1

The formula for potential energy is

E = kQ₁Q₂/r

where

k = 9×10⁹ Nm²/C² is the Coulomb's constant

Q₁ = Q₂ = 1.6×10^-19 C is the charge of a proton

r = 2×10^-5 m is their distance