Two uniformely charged spheres are suspended by strings of length L from vertica

Question

Two uniformely charged spheres are suspended by strings of length L from vertically adjustable supports. The spheres are in static equilibrium and at the same height, as shown below.

The angles with respect to the vertical are Q=21.3?, and T=13.7?.

T/F?The mass of Z can be equal to that on X.

T/F?The charge on X can be positive and that on Z negative.

T/F?The amount of charge on Z can be equal to that on X.

T/F?The amount of charge on Z can be less than that on X.

T/F?The charge on X can be negative and that on Z negative.

Explanation / Answer

a) F b) F c) T d) T e) T

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