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Presents the diagram of the problem, necessary formulas, clearance and numerical solution:

A naked person whose body has a surface area of 1.40 m2 with an emissivity of 0.85 has a skin temperature of 37 ◦C and is standing in a room at 20 ◦C. How much energy per minute does the person lose through radiation?

P = €Ao(T²-T²)

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