What is the potential energy if a +4 nC charge moves from infinity to point A, 5 cm away from a +3 μC charge?
Potential energy:
"U=\\frac{kQq}{r}"
"U=\\frac{(9\u00d710^9\\frac{Nm^2}{C^2})(+3\u00d710^{-6}C)(+4\u00d710^{-9}C}{(0.05m)}"
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