Решение задачи по физике раздел 73 пункт 25 электро

25. The surface charge density of an infinitely extended vertical plane is 4 ∙ 10−5 C / m2. A ball of the same name with a mass of 1 g and a charge of 1 nC is suspended from a plane on a thread. 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)