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A cold beverage can be kept cold even a warm day if it is slipped into...

A cold beverage can be kept cold even a warm day if it is slipped into a porous ceramic container that has been soaked in water. Assume that energy lost to evaporation matches the net energy gained via the radiation exchange through the top and the side surfaces. The container and beverage have temperature T = 16°C, the environment has temperature Tenv = 32°C, and the container is a cylinder with radius r = 2.42 cm and height 11 cm. Approximately the emissivity as ε = 1, and neglect other energy exchanges. At what rate dm/dt is the container losing water mass?

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effeahire tnengy abiunbd b the Contninen is ene, Ac.emrh t Ti γ2 we hart, 21 2 A= 0.01671740. ool$39 nstont P17.491 W dm ←上一1

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