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A 3.0-cm-diameter sphere is maintained at 1000C and has an emissivity of 0.6. It is enclosed by another sphere having a diameter of 9.0
A 3.0-cm-diameter sphere is maintained at 1000C and has an emissivity of 0.6. It is enclosed by another sphere having a diameter of 9.0 cm with an emissivity of 0.3 (inside and outside). Both spheres are enclosed in a large room at 30C. Calculate the heat lost from the small sphere.
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Principles of heat transfer
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
7th Edition
495667706, 978-0495667704
