You will need the following data to answer the question.

Proton mass = 1.67 × 10⁻²⁷ kg

Proton charge = +1.60 × 10⁻¹⁹ C

ε₀ = 8.85 × 10⁻¹² F m⁻¹

G = 6.67 × 10⁻¹¹ N m² kg⁻²

Two protons in the nucleus of an atom are separated by a distance of 10⁻¹⁵ m. Calculate the electrostatic force of repulsion between them, and the force of gravitational attraction between them. (Assume the protons behave as point charges and point masses.) Is the attractive gravitational force enough to balance the repulsive electrical force? What does this suggest to you about the forces between protons within a nucleus?