A point charge of +Q is placed at the cent
7uug wq2r1p0g:kk-+aibw1 e xer of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on the positive charge at the center. What is the magnitude of the force that acts on the center charge if a third charge of -Q
r:-ib 71qe 2 g1kup+u xwagk0wis placed at the lower-left corner?