The emissivity of tungsten is 0.350. A tungsten sphere with radius 1.89 cm is suspended within a large evacuated enclosure whose walls are at 300.0 K. What power input is required to maintain the sphere at 3100.0 K if heat conduction along the supports is ignored?

The emissivity of tungsten is 0.350. A tungsten sphere with radius 1.89 cm is suspended within a large evacuated enclosure whose walls are at 300.0 K. What power input is required to maintain the sphere at 3100.0 K if heat conduction along the supports is ignored?

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