Solving a problem in physics section 73 point 78 electr

Solving a problem in physics section 73 point 78 electr

78. A charged ball weighing 29 g hangs on a non-conductive filament. What modulo charge should be placed at a distance of 5 cm from the ball so that the weight of the ball is reduced by 2 times. Ball charge 2 ∙ 10−6 C

Additional information:

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