A point charge of +Q is pl
g-hpg4p b3q )d wr4g*y+m (0vcg/ozkoaced at the centroid of an equilateral 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 t
wdg-g 4 *p)qo0yc3+obzr 4k g(h/mg pvhe magnitude of the force that acts on the center charge due to a third charge of +Q placed at one of the other vertices?