Determine how long are the strings

Reference no: EM13533247

Two small metallic spheres, each of mass m = 0.180 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.8 nC, and they come to equilibrium when each string is at an angle of ? = 5.15° with the vertical. How long are the strings?

Reference no: EM13533247

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