A long, straight wire carries a current I1=3.5 A and is distance h=15 cm from a rectangular current loop that carries a current I2=1.5 A. (a) if the loop has a length L= 45 cm and a width w=20 cm, what are the magnitude and direction of the force exerted by the wire on the loop? (b) what is the force exerted but the current loop on the wire?