Решение задачи по физике раздел 74 пункт 1 электро

1. A small ball weighing 2 g and a charge of 15 nC is suspended on a silk thread in the air. If we place below the ball the same ball with the same charge modulo, then the thread tension force will be reduced by half. Determine the distance between the centers of the balls

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