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Home Q & A Board Science-Related Homework Help Physics
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Earthy Earthy
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9 years ago
Cepheid variables are important stars to cosmologists because their ________ can be determined from their rate of pulsation.
A) age
B) amount of degenerate matter
C) rate of expansion
D) absolute magnitude
Textbook 
Foundations of Earth Science

Foundations of Earth Science


Edition: 7th
Authors:
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Richy271Richy271
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9 years ago
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Earthy Author
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#2
9 years ago
I'll mark my thread solved, I appreciate the help!
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#3
9 years ago
You're very welcome, but don't forget to mark it solved!
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