Problem three equal point charges each with charge 170, Ask an Expert

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Problem: Three equal point charges, each with charge 1.70 µC, are placed at the vertices of an equilateral triangle whose sides are of length 0.450m.

Part A: What is the electric potential energy U of the system?

I need help to determine the electric potential energy U of the system and take as zero the potential energy of the three charges when they are infinitely far apart.

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