일반물리학 2 — Coulomb's Law: Problem 11

11 The magnitude of the electrostatic force between point charges \(q_1 = 26.0\ \mu\text{C}\) and \(q_2 = 47.0\ \mu\text{C}\) is initially \(5.70\ \text{N}\). The separation is then changed such that the force magnitude is then \(0.570\ \text{N}\). (a) What is the ratio of the new separation to the initial separation? (b) What is the new separation?