일반물리학 2 — Coulomb's Law: Problem 19

19 The magnitude of the electrostatic force between two identical ions that are separated by a distance of \(10.0 \times 10^{-10} \text{ m}\) is \(9.25 \times 10^{-10} \text{ N}\). (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion (thus giving the ion its charge imbalance)? (c) What is the force magnitude if the separation is halved?