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Author Question: A black hole is _____. a. an object so dense that light cannot escape its surface b. a neutron ... (Read 84 times)

nautica902

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on: Jul 27, 2018
A black hole is _____.
 
  a. an object so dense that light cannot escape its surface
  b. a neutron star that has exceeded the Chandrasekhar limit
  c. a theoretical model that has never been observed
 d. an observed object that is not well understood
  e. the result of a neutron star merger

Question 2

Ptolemy tried to describe the motion of the planets by devising a small circle, called a(n) ____, which rotated around the edge of a larger circle.
 
  a. epicycle
  b. foci
 c. deferent
  d. equant
 e. sphere


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livaneabi

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Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

a


nautica902

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Reply #2 on: Jul 27, 2018
Thanks


livaneabi

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Reply #3 on: Jul 27, 2018
Welcome :)


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