Assuming that all radiation is emitted at the wavelength of peak intensity, for a skin temperature of 34 degrees C and a surface area of 1.6 m2 , how many photons per second does the body emit? Emissivity of human skin is ? = 0.97, also the wavelength for the peak intensity at 34 degrees C is about 10 ?m .
Express your answer using two significant figures.
______________photons/second