Q Search A rectangle of charges (each with magnitude Q) is setup as shown in the picture below. a) (16 points) Draw the direction of each of the forces acting on the +Q charge due to the negative charges. b) (16 points) Derive an equation for the total electric force acting ON the POSITIVE charge FROM the NEGATIVE charges in appropriate vector notation (i.e. using unit vectors to express the X and Y forces, respectively). Express your answer entirely in terms of universal constants and the variables provided (Q and h) (note: @ should NOT appear in your answer). -Q +Q 3h Q -Q 4h