Решение задачи по физике раздел 73 пункт 40 электро

40. At what angle does the small ball with a charge of 4 ∙ 10−7 C of a weight of 4 mg, suspended on a silk thread, deviate from the vertical, if it is placed in a horizontal uniform electric field with a strength of 100 N / C?

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