Three point charges are located on a circular arc as shown in the figure below. (Let r = 4.04 cm. Assume that the +x-axis is to the right and the +y-axis is up along the page.) +3.00 nC -2.00 nC 30.0 30.0 +3.00 nC (a) What is the total electric field at P, the center of the arc? magnitude direction Your response differs from the correct answer by more than 100%. N/C to the right v (b) Find the electric force that would be exerted on a -5.17 nC point charge placed at P. magnitude direction Your response differs from the correct answer by more than 100%. N to the left