Решение задачи по физике раздел 75 пункт 82 электро

82. Two identical balls are suspended on the threads so that their surfaces are in contact. When a charge of 4 × 10–7 C was reported to each ball, they diverged through an angle of 60 °. Find the mass of balls if the distance from the suspension point to the center of each ball is 20 cm.

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