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Find the radius of the sphere

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The emissivity of tungsten is 0.350.A tungsten sphere with an unknown radius is suspended with a large evacuated enc losure whose walls are at 290 K. If the power in put required to maintaining the sphere at a temperature of 3000 K is 4.54x 103 W then find the radius of the sphere. (a = 5.67x 10-8w/m2.K4)

Reference no: EM13891772

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