Решение задачи по физике раздел 75 пункт 81 электро

81. Two identical balls, suspended on threads of 20 cm long, touch each other. The ball was given a charge of 0.4 μC, after which they dispersed so that the angle between the filaments became equal to 60 °. Find the mass of each ball.

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