Hi guys, I have been trying to do this problem for a while and I don't have any idea what I am doing wrong. The question is The emissivity of tungsten is 0.350 . A tungsten sphere with a radius of 1.96cm is suspended within a large evacuated enclosure whose walls are at a temperature of 300K. What power input is required to maintain the sphere at a temperature of 3300K if heat conduction along the supports is neglected? I used H = Aeσ(T^4 - To^4) and I get H = 579657.66W is this right or am I completely missing the question?