A point charge of +Q is placed at the c
v cyhy786f lrxrd 6buc(1w(b;t d2osh x7w(;lentroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an e
l dtu67;(w2;cx1r(b sv olchxw7 8y fybhr (d6lectrostatic force of 4.0 N acts on it. What is the magnitude of the force that acts on the center charge due to a third charge of +Q placed at one of the other vertices?