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A styrofoam box ( k=.01 J/(s8m8C) containing ice water at 0C has a total area of...

A styrofoam box ( k=.01 J/(s8m8C) containing ice water at 0C has a total area of .950m^2 and walls with thickness 2.50cm in a 35 C room. What is the heat flow through the walls?

The sun has a surface temperature 5800K and a radius of 6.96X10^8m. It sits in empty space (T=3K). Assuming the sun has emissivity 1.0, what is the heat flow rate from the Sun?

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