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An anodized ( dark surface, = 0 . 8 aluminum sphere ( k = 2 3 8 W m * K ) with 2 c
An anodized dark surface, aluminum sphere with diameter
cools in a cold dark vacuum enclosure much lower than the such that
negligible radiation goes from the enclosure to the sphere.
Calculate the radiative emission in this case the same as the heat flux from the
aluminum sphere surface at and at
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