A point charge of +Q is pl
i-do s3 hhwr.1.wys/laced at the center 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
. wos13h rys-.dhlwi/ positive charge at the center. What is the magnitude of the force that acts on the center charge if a third charge of -Q is placed at the lower-left corner?