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Author Question: The absolute magnitude of a star is its brightness as seen from a distance of A) one million ... (Read 62 times)

cartlidgeashley

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on: Jul 27, 2018
The absolute magnitude of a star is its brightness as seen from a distance of
 
  A) one million kilometers.
  B) one astronomical unit.
  C) one light-year.
  D) ten parsecs.
  E) 10 light-years.

Question 2

A late collision with a large planetesimal may have caused what feature on Mars?
 
  A) Olympus Mons
  B) its curious north-south asymmetry
  C) Hellas Basin
  D) the Marianas Trench
  E) its exceptionally large nickel-iron core


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firehawk60

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

D

Answer to Question 2

B


cartlidgeashley

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

mohan

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Reply 3 on: Yesterday
:D TYSM

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