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Electrostatics: Potential Energy and Conservation Laws

Two particles each have a mass of 5.4 x 10-2 kg. One has a charge of +4.8 x 10-6 C, and the other has a charge of -4.8 x 10-6 C. They are initially held at rest at a distance of 1.1 m apart. Both are then released and accelerate toward each other. How fast is each particle moving when the separation between them is one-half its initial value?

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2 charged particles released from a distance, the velocity of approach at nearer distance is calculated.

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