Electric Forces from Multiple Charges Three charges are on a line, as shown below. a. What is the magnitude and direction of the force that the −2q charge exerts on the +q charge? (Don't forget to include k.) b. What is the magnitude and direction of the force that the +3q charge exerts on the +q charge? c. Draw the forces acting on charge +q (the middle one) from each of the other two charges. Be sure to start the force vectors on +q and scale the length of the vectors appropriately. d. What is the magnitude and direction of the net force acting on +q? e. What is the net force (magnitude & direction) acting on the +3q charge due to the other two charges?