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A point charge 4.20 μC is held fixed at the origin. A second point charge 1.40...

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Physics

A point charge 4.20 μC is held fixed at the origin. A secondpoint charge 1.40 μC with mass of 2.80×10−4 kg is placed on the xaxis, 0.260 m from the origin.

Part A: What is the electric potential energy U of the pair ofcharges? (Take U to be zero when the charges have infiniteseparation.)

Part B: The second point charge is released from rest. What isits speed when its distance from the origin is 0.600 mm?

Part C: What is its speed when its distance from the origin is6.00 mm?

Part D: What is its speed when its distance from the origin is60.0 mm?

Answer & Explanation Solved by verified expert
4.4 Ratings (609 Votes)
Use conservation of energy principle where initial    See Answer
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