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staedtler staedtler
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7 years ago
According to Hubble's law, if a very distant galaxy (Galaxy B) is three times farther away than another galaxy (Galaxy A), then Galaxy B is receding from us

(a)   3 times faster than Galaxy A.
(b)   1.5 times faster than Galaxy A.
(c)   9 times faster than Galaxy A
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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papachulopapachulo
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7 years ago
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staedtler Author
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6 years ago
Grinning Face Exactly what I needed
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