If you were to walk briefly in space without aspacesuit while far from the Sun (as an astronaut does in the movie2001), you would feel the cold of space -- while youradiated energy, you would absorb almost none from yourenvironment. Assume that your emmisivity is 0.90, the surface areaof the average human body to be about 2 m2, and the skintemperature to be about 300 K.
(a) At what rate would you lose energy?
W
(b) How much energy would you lose in 35 s?
J