Finding charge with mass, length and separation

  • Thread starter Averiex
  • Start date
  • #1
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I don't even know where to start..

Two styrofoam balls with the same mass (m=9.0x10^-8 kg) and the same positive charge Q are suspended from the same point by insulating threads of length (L=0.98 m). The separation of the balls is (d=0.020 m). What is the charge Q??
 

Answers and Replies

  • #2
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Welcome to the forum.

First you should sketch the situation. Also include all forces acting on the balls.
 

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