This was an extra practice problem for our review. I'm a bit lost on where to begin and the correct constants to use. please help

4. Note: You will have to look up some constants on the internet for this problem. Suppose a straight 1.00 mm diameter copper wire could just "float" horizontally in air because of the force due to the earth's magnetic field which is horizontal, perpendicular to the wire, and of magnitude 5.0 x 10-5 T. a. What current would the wire carry? Does this answer seem feasible? b. How much energy is given to a 1 m segment of this wire in one second? Assume that 1% of the total energy goes into heating up the wire. c. The temperature change of an object given an amount of energy E can be calculated from the following equation E AT = mc Where c is the specific heat of the object. For copper, c = 390 J/kg degrees C. How much temperature would the copper wire in part b increase per meter? How does this compare with the melting point of copper? What can you conclude about the ability to levitate this wire in air