(6%) Problem 9: Four point charges of equal magnitude Q = 75 11C are placed on the corners of a rectangle of sides D1 = 21 c111 and D3 = 11' em. The charges on the left side of the rectangle are positive while the charges on the right side of the rectangle are negative. Use a coordinate system where the positive ydirection is up and the positive mdirection is to the right. \fi, 20% Pa rt [:1] Which of the following represents a freebody diagram for the charge on the lower left hand corner of the rectangle? I4 W 20% Part (b) Calculate the horizontal component of the net force, in newtons, on the charge which lies at the lower left corner of the rectangle. Fx = N Grad Dedu'. - a 20% Part (c) Calculate the vertical component of the net force, in newtons, on the charge which lies at the lower left corner of the rectangle. 133,: N G. D: A 20% Part (d) Calculate the magnitude of the net force, in newtons, on the charge located at the lower left corner of the rectangle. F = N20% Part (e) Calculate the angle of the net force vector relative to the +x axis, with the positive direction being counterclockwise from the positive horizonta axis. Enter an angle between -180 and 180. Grade Summary Deductions