Two insulated wires, each 2.94 m long, are taped together to form a two-wire unit that is 2.94 m long. One wire carries a current of 8.36 A; the other carries a smaller current I in the opposite direction. The two-wire unit is placed at an angle of 72.0o relative to a magnetic field whose magnitude is 0.470 T. The magnitude of the net magnetic force experienced by the two-wire unit is 1.48 N. What is the current I?