Two protons attract each other gravitationally and repel each other electrically.By far the greater force is
A)the gravitational attraction.
B)the electrical repulsion.
C)neither - the forces are the same.

Question

Quizplus · Accepted Answer

The electrical force between two protons is much stronger than their gravitational force. Although both forces act on the protons, the electrical force dominates at the atomic scale. This is because the electrical force depends on the charges of the particles, which are much stronger than their masses. The gravitational force, on the other hand, depends on their masses, which are very small at the atomic level.

Two Protons Attract Each Other Gravitationally and Repel Each Other