(10%) Problem 3: A point charge of 5.2 \"C is placed at the origin (x1 = 0) of a coordinate system, and another charge of 1.9 11C is placed placed on the x- axis at x2 = 0.25 m. E 8 50% Part (a) Where on the x-axis can a third charge be placed in meters so that the net force on it is zero? x3 = 0.262 X Attempts Remain D 3 50% Part (b) What if both charges are positive; that is, what if the second charge is 1.9 \"C? . _ Grade Summaw , x3_ E Deductions 0%