A point charge of -3 C is located at x = 2 m, y = -2 m. A second point charge of 12 C is located at x = 1 m, y = 1 m. (a) Find the magnitude and direction...

A point charge of -3 C is located at x = 2 m, y = -2 m. A second point charge of 12 C is located at x = 1 m, y = 1 m.

(a) Find the magnitude and direction of the electric field at x = -1 m, y = 0.