93. A ball weighing 2 g, having a charge of 3 ∙ 10−8 C, is motionlessly hanging on a silk thread in the air. If another ball with the same charge of 2 ∙ 10−7 C is placed under the ball at a distance of 10 cm from it, then what is the tension of the thread equal to?
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
No feedback yet