Consider two charges positioned at two corners of a rectangle, as shown in the diagram below: P 30 cm 42 = 19.0 20 cm 41 = +4.0 (a) Point P is at the upper left corner of the rectangle, as indicated. On a similar diagram, draw the electric field vector from q, at point P and the electric field from q2 at point P. Label each accordingly. (b) Determine the magnitude and direction of the net electric field at point P.