일반물리학 2 — Electric Fields: Problem 56

56 Humid air breaks down (its molecules become ionized) in an electric field of \(3.0 \times 10^6 \text{ N/C}\). In that field, what is the magnitude of the electrostatic force on (a) an electron and (b) an ion with a single electron missing, and (c) what is the acceleration magnitude of a free electron?