Conservation of angular momentum means that a spinning body tends ...

[burton19126]

Conservation of angular momentum means that a spinning body tends to:
 
  A) fly apart.
  B) slow down.
  C) wobble into an eccentric orbit.
  D) gravitationally collapse.
  E) keep spinning.

Question 2

Describe some of the early theories for why the Sun shines and why they are no longer accepted as viable.
 
  What will be an ideal response?

[itsakadoozi]

Answer to Question 1

E

Answer to Question 2

The Sun was once postulated to be a cooling ember, but that would have meant the Sun would have been much hotter in its immediate past (just a few hundred years ago) and people could not have lived in such a hot environment. Another idea was that the Sun shone through chemical burning (like a conventional fire on Earth), but this was dismissed because it could not generate and sustain sufficient brightness. A more modern hypothesis was that the Sun shone through the emission of thermal energy resulting from gravitational contraction, but this could only last for about 25 million years, far less than the age of Earth, before the Sun would have contracted to a point.

[burton19126]

Both answers were spot on, thank you once again

[itsakadoozi]

Great! Please up vote