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    Astronomy Preliminary
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    Exam 16: A Universe of Galaxies
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    A Bright Source Doubles Its Luminosity Over the Course of a Week.How
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A Bright Source Doubles Its Luminosity Over the Course of a Week.How

Question 48

Question 48

Multiple Choice

A bright source doubles its luminosity over the course of a week.How large is the source?


A) 12 AU
B) 1200 AU
C) 0.12 parsecs
D) 1.2 parsecs

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