A +2.50μC charge is located at a point A at the origin, and a -6.00 μC charge is located at point B at +20.0cm on the x-axis. Point C is located at +15.0 cm on the y-axis.
A) Find the magnitude of the net electric field at point C.
B) Find the magnitude of the net force due to the electric field on a 2.0 μC charge located at point C.