Part A A point charge q1 = 4.00 nC is placed at the origin, and a second point charge q2 = -2.90 nC is placed on the x-axis at x - + 20.0 cm . A third point What is the potential energy of the system of the three charges if q3 is placed at a - + 10.5 cm ? charge q3 = 2.10 nC is to be placed on the x-axis between q1 and q2. (Take as zero the potential energy of the three charges when they are infinitely AEd ? far apart.) Xb a b Vx Vx X X IXI X. 10n X U = 1.4 . 10 7 J Submit Previous Answers Request Answer X Incorrect; Try Again