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Author Question: When the parallax angle of a star is measured to be 0.002, the distance to the star is ________ ... (Read 157 times)

urbanoutfitters

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on: Jul 27, 2018
When the parallax angle of a star is measured to be 0.002, the distance to the star is ________ light-years.
 
  Fill in the blank(s) with correct word

Question 2

Collisions between galaxies are thought to:
 
  A) have stopped about 5 billion years ago.
  B) be commonplace.
  C) have never occurred.
  D) be extremely rare.
  E) have only occurred between 10 and 15 billion years ago.


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cloud

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

1600

Answer to Question 2

B


urbanoutfitters

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Reply #2 on: Jul 27, 2018
Thanks


cloud

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


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