44. In Figure P29.44, the cube is 40.0 cm on each edge. Four straight segments of wire- \( a b, b c, c d \), and \( d a- \) form a closed loop that carries a current \( I=5.00 \mathrm{~A} \) in the direction shown. A uniform magnetic field of magnitude \( B=0.0200 \mathrm{~T} \) is in the positive \( y \) direction. Determine the magnetic force vector on (a) \( a b \), (b) \( b c \), (c) \( c d \), and (d) \( d a \). (e) Explain how you could find the force exerted on the fourth of these segments from the forces on the other three, without further calculation involving the magnetic field.
Figure P29.44