Question: Under the same assumptions as for Problem 27.3, estimate the net rate at which energy is lost to upward thermal radiation. First, compute the rate

Under the same assumptions as for Problem 27.3, estimate the net rate at which energy is lost to upward thermal radiation. First, compute the rate of upward thermal radiation. Then include a downward IR radiation flux, approximated by thermal radiation from the atmosphere at an altitude of 2000 m at 20 ^◦C, and compute the net upward energy flux.

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