Solving a problem in physics section 74 point 9 electr

Solving a problem in physics section 74 point 9 electr

9. A ball of mass m = 2 g, having a charge q = 5 ∙ 10−7 C, is suspended on an insulating thread. At what distance r from below should the same charge be placed so that the tension force of the thread is reduced by half?

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