Author Question: A super-insulated house is at a temperature of 20C. The temperature outside is 0C. The surface area ... (Read 114 times)

SGallaher96 · **on:** Jul 28, 2018

A super-insulated house is at a temperature of 20C. The temperature outside is 0C. The surface area of the house is 200 m2, and the emissivity is 1 . Approximately how much energy is radiated (in W) per second?
a. 20 000
b. 2 000
c. 200
d. 2
e. 0.2

Question 2

A child has a temperature of 101F. If her total cross-sectional area is 2 m2, find the energy lost each second (in W) due to radiation, assuming the emissivity is 1 . (Assume the room temperature is 70F.)
a. 217
b. 180
c. 90
d. 68
e. 850