1. Concept: Comparing the fundamental forces of nature: Electrostatic forces are immensely powerful compared to Gravity on the scale of fundamental particles.
2. Formula: $$ F_E = k \frac{q_1 q_2}{r^2} \quad \text{vs} \quad F_g = G \frac{m_1 m_2}{r^2} $$
3. Solution: - Statement A is false: Both forces mathematically feature a \( 1/r^2 \) drop-off, thus both strictly obey the inverse square law.
- Statement B is false: Gravity only attracts; it has no physically proven repulsive counterpart.
- Statement C is true: The electrostatic force between an electron and proton is roughly \( 10^{39} \) times stronger than their mutual gravitational pull. Gravity is the weakest fundamental force.
4. Why other options are incorrect: They contradict the fundamental mathematical structure and empirical strength hierarchies of Newton's and Coulomb's laws.
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