1. (20 points) Based on the diagram to the right, y (cm) a) Calculate Enet at point P1. 91 = -20nC 50 b) Calculate Fnet on qs if placed at point P1, if charge qs = 100nC. 92 = 10nc 40 * Show all work, vectors and FBDs. P.1 30 93 = 10nc 20 + 94 = +20nc 10 10 20 * X (cm) 30 402. (15 points) Consider an ideal parallel plate capacitor with a uniform charge of +Q = 3.54 nC on the plates as shown in the figure to the right. The area of each plate is 50 cm?. *Note the units of each axis. a) Determine the electric field (magnitude and direction) at points A, B, and C. b) Sketch the voltage between the plates as a function of position along the y axis. c) What is the change in potential energy of the system if a point charge, q = 8uC, initially at position A is placed in a final position at B? 0.4 0.3 0.1 @ Frt++r+rrtrrrrrrr+++++4+Q X (cm)