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Two point charges of magnitude 3.02 nC and ?1.82 nC are separated by 41.4 cm. The acceleration of gravity is 9.8 m/s 2 , and the Coulomb constant is 8.98755 × 10 9 N · m2 /C 2 . What is the electric potential at a point midway between the charges? Answer in units of V.

What is the potential energy of the pair of charges?

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