For the dumbbell in Figure let m?= 0.02 kg, a?= 0.3 m, and E?= (600 N/C)i. Initially the dumbbell is at rest and makes an angle of 60^o with the x?axis. The dumbbell is then released, and when it is momentarily aligned with the electric field, its kinetic energy is 5 x 10^?3 J. Determine the magnitude of q.

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