The emissivity of the human skin is 97.0 percent. Use 35.0 C for the skin temperature and approximate the human body by a rectangular block with a height of 1.81 m, a width of 40.0 cm and a length of 22.5 cm. 1. Calculate the power emitted by the human body.

2. What is the wavelength of the peak in the spectral distribution for this temperature?

3. Fortunately, our environment radiates too. The human body absorbs this radiation with an absorptance of 97.0 percent, so we don't lose our internal energy so quickly. How much power do we absorb when we are in a room where the temperature is 27.0 C?

4. How much energy does our body lose in one second?