A 9-cm-diameter spherical ball whose surface is maintained at a temperature of 1108C is suspended in the

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A 9-cm-diameter spherical ball whose surface is maintained at a temperature of 1108C is suspended in the middle of a room at 208C. If the convection heat transfer coefficient is 15 W/m2·C and the emissivity of the surface is 0.8, determine the total rate of heat transfer from the ball.
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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