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A flourescent S 20.5 A fluorescent light bulb, rated at 100 W, is illuminate air at 25 C and atmospheric pressure. Under these conditions surface

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A flourescent

S 20.5 A fluorescent light bulb, rated at 100 W, is illuminate air at 25 C and atmospheric pressure. Under these conditions surface temperature of the glass is 140 C. Determine the rate of heat transfer from the bulb by nata convection. The bulb is cylindrical, having a diameter of 75 m and a Tength of 0.8 m, and is oriented horizontally. a

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