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How does the electrostatic potential energy of a system of two positive point charges change when the distance between them is tripled: (a) it is reduced to one-third its original value, (b) it is reduced to one-ninth its original value, (c) it is unchanged, or (d) it is increased to three times its original value?
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How does the electrostatic potential energy of a system of two positive point charges change when th...
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