A point charge of +Q is placed at the centroid o
ijoy bp,7 r2edq/ie -8g95kuff 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 the magnitude of the force that acts on the center
g8r9 -e5/o,i jpb fqkie72ydu charge due to a third charge of +Q placed at one of the other vertices?