Решение задачи по физике раздел 73 пункт 26 электро

26. To an infinitely charged plane with a surface charge density of 8.85 nC / cm2, a ball of the same name with a mass of 1 g and a charge of 2 nC is attached to the threads. What angle with the plane forms the thread on which the ball hangs?

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