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Author Question: How does the mass of a giant star compare with the mass of the black hole it may become? How do the ... (Read 56 times)

tnt_battle

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on: Jul 29, 2018
How does the mass of a giant star compare with the mass of the black hole it may become? How do the densities compare?
 
  What will be an ideal response?

Question 2

If a star collapses to a tenth its size, gravitation at its surface increases by
 
  A) ten.
  B) twenty.
  C) one hundred.
  D) one thousand.
  E) more than one thousand.


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fatboyy09

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: The masses are the same A black hole is a collapsed star, with its mass enormously compressed, but not increased. The density of a black hole is enormously greater, but not because of more mass, but because of less volume.

Answer to Question 2

Answer: C


tnt_battle

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Reply 2 on: Jul 29, 2018
Excellent

xiaomengxian

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Reply 3 on: Yesterday
:D TYSM

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