A copper nire (density p=8960 kg/m 2 ) of radius 0.491 mm is tamving a current at the Earth's Equatoc. Assuming that the magnetic field of the Earth has magnitude 0.509G at the Eauater aod is parallel to the surface of the Earth and that the current in the wice flow toward the east, what current is required to allow the wire to levitate? Tries of 10