A point charge of +Q is placed at the c
y7un51g5;nqr:ij bbv m5cgy4 entroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices,
i;nmby5:qvcbr75 ngy 5j41g u an electrostatic force of 4.0 N acts on it. What is the magnitude of the force that acts on the center charge due to a third charge of +Q placed at one of the other vertices?