1850 kg asteroid

3. One side of our asteroid is constantly illuminated by the Sun while the other side remains in the dark.

a. Do you expect there to be a temperature difference between the light and dark sides? Explain why or why not.

b. If the two sides are at different temperatures, how might heat transfer from one side to the other if the asteroid does not have enough gravity to hold an atmosphere?

c. If the two sides are at different temperatures and the asteroid had an atmosphere, in what additional manner might heat transfer occur?

4. Occasionally an asteroid will break into fragments due to a collision. These fragments, which often contain ice, can leave the asteroid belt and make their way to Earth. Upon entering Earth's atmosphere, the fragment would be heated to a high temperature by frictional forces.

a.What would happen to any ice contained within the fragment?

b. What type of phase change would this be?

c. Is this type of change considered a chemical change or a physical change? Explain.