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Coulomb's Law - 2 small charged spheres

2 small spheres with mass m = 15.1 g are hung by silk threads of length L = 1.21 m from a common point. When the spheres are given equal charges, so that q_1 = q_2 = q, each thread hangs at an angle theta = 26 degrees from the vertical. Find the magnitude q.

Use 9.81 m/s^2 as the acceleration due to gravity and 8.85 * 10^-12 C^2/Nm^2 as the permittivity of free space.

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Please see the solution to your problem in the attached word file

Its a very simple problem. I have given one additional case, where ...

Solution Summary

The solution calculates the magnitude of charges of two balls hanging from non-conducting threads.