Three long, straight wires are seen end-on in the figure below. The distance between the wires is r = 0.254 m. Wires A and B carry current IA = IB = 1.51 A, and wire C carries current Ic = 3.30 A. Assume (for example) the only forces exerted on wire A are due to wires B and C. Find the force per unit length exerted on the following. (Express your answers in vector form.) A O O X O r B IB Ic C (a) wire A FA = 3.108e6j N/m X (b) wire B f B = -2.89e - 6j N/m X