Physics, 14.11.2020 15:30 mota78

5. Two small metallic spheres, each of mass m = 0.2 g, are suspended as pendulums by light strings of length L as shown in the figure. The spheres are given the same electric charge of 7.2 nC, and they come to equilibrium when each string is at an angle of θ = 5˚ with the vertical. How long are the strings?

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