Question: Two particles with Q 1 = 45 C and Q 2 = 85 C are initially separated by a distance of 2.5 m and then

Two particles with Q₁ = 45 µC and Q₂ = 85 µC are initially separated by a distance of 2.5 m and then brought closer together so that the final separation is 1.5 m. What is the change in the electric potential energy?

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