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Author Question: The look-back time of an object is directly related to its: A) mass. B) distance. C) ... (Read 85 times)

lracut11

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on: Jul 27, 2018
The look-back time of an object is directly related to its:
 
  A) mass.
  B) distance.
  C) luminosity.
  D) size.
  E) composition.

Question 2

Astronomers expect that stars with multiple planets orbiting them are rare.
 
  Indicate whether the statement is true or false


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Zebsrer

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

B

Answer to Question 2

FALSE


lracut11

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Reply 2 on: Jul 27, 2018
Wow, this really help

tkempin

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Reply 3 on: Yesterday
Gracias!

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