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Home Q & A Board Science-Related Homework Help Physics
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drelog drelog
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8 years ago
Cepheid Variables are stars whose brightness varies in a predictable manner so that the absolute magnitude of the star can be determined, and this allows the ________ of the star to be determined.
A) size
B) direction of motion
C) composition
D) velocity
E) distance from Earth
Textbook 
Earth Science

Earth Science


Edition: 14th
Authors:
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PulsaPulsa
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8 years ago
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drelog Author
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#2
8 years ago
Exactly what I needed, exam is tomorrow!
ןnɟʎoɾ sʎɐʍן∀ Slight Smile
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