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    Physics & Astronomy
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    Astronomy Today Study Set 1
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    Exam 24: Galaxies: Building Blocks of the Universe
  5. Question
    The Look-Back Time of an Object Is Directly Related to Its
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The Look-Back Time of an Object Is Directly Related to Its

Question 47

Question 47

Multiple Choice

The look-back time of an object is directly related to its:


A) mass.
B) distance.
C) luminosity.
D) size.
E) composition.

Correct Answer:

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