Three point charges, each of magnitude 3.00 nC, are at
Chapter , Problem 30(choose chapter or problem)
Three point charges, each of magnitude 3.00 nC, are at separate corners of a square of edge length 5.00 cm. The two point charges at opposite corners are positive, and the third point charge is negative. Find the force exerted by these point charges on a fourth point charge at the remaining corner.
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