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A charge of -3.20 µC is fixed in place. From a horizontal distance of 0.0475 m,...

A charge of -3.20 µC is fixed in place. From a horizontal distance of 0.0475 m, a particle of mass 7.40 10-3 kg and charge -7.40 µC is fired with an initial speed of 70.0 m/s directly toward the fixed charge. How far does the particle travel before its speed is zero? m

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Answer #1

Concept: use conservation of energy. The initial sum of kinetic energy of B and potential energy of two charges will be equal to final potential energy of two charges as the final kinetic energy is zero

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