College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 13

An alpha particle ( Z = 2, mass = 6.64 × 10 27 kg) approaches to within 1.00 × 10 14 m of a carbon nucleus ( Z 5 6). What are (a) the maximum Coulomb force on the alpha particle, (b) the acceleration of the alpha particle at this time, and (c) the potential energy of the alpha particle at the same time