Find the minimum charge needed to start the beads moving

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Reference no: EM13525239

Two cylindrical glass beads each of mass m = 20 mg are set on their flat ends on a horizontal insulating surface separated by a distance d = 8 cm. The coefficient of static friction between the beads and the surface is ?s = 0.2. The beads are then given identical charges (magnitude and sign). What is the minimum charge needed to start the beads moving?

Reference no: EM13525239

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