A point charge of +Q is placed at the centroid of an e
hy skhx iyc m1 )ji h8:hvx6a6ru635-uquilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts on it. What is the magnitude of the fo
5 66rxvu:ukc i3 i-6)hy8xh haym js1hrce that acts on the center charge due to a third charge of +Q placed at one of the other vertices?