Решение задачи по физике раздел 71 пункт 53 электро

53. The positive charges Q1 = 3 µC and Q2 = 20 nC are in vacuum at a distance of r1 = 1.5 m from each other. Determine the work A, which must be done in order to bring the charges closer to a distance r2 = 1 m.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)