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A point charge Q resides at the origin. A particle of mass 0.002 kg carries a...

A point charge Q resides at the origin. A particle of mass 0.002 kg carries a charge of 4 µC. The particle is released from rest at x = 1.5 m, and its kinetic energy as it passes x = 1 m is 0.32 J. Find the charge Q. The Coulomb constant is 8.98755×109 N·m2/C2. Answer in units of µC.

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