Question 5 Calculate the EPE of a collection of three particles q1 = (8.5210x10^1) nC, q2 = (5.3250x10^1) nC and q3= (-3.22x10^1) nC, which are distances of r12 = (8.7710x10^-1) m, r13 (6.017x10^-1) m and r23 = (6.562x10^-1) m respectively. 91 13 93 r12 r23 92
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