Replace the loading by an equivalent resultant force and couple moment acting at point A. (Figure 1) Assume F-70 lb, F-35 lb, and F3 = 105 lb. Part A Determine the magnitude of the resultant force. Express your answer in pounds to three significant figures. Figure -3ft 3 ft 1 ft 1 of 1 It vec FR= Submit Request Answer Part B Determine the angle between the resultant force and the z axis. Express your answer in degrees to three significant figures. lb