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doit_the_clown doit_the_clown
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7 years ago
A star of 25 solar masses spends roughly what percentage of its life as a main-sequence star? (See Table 13-1, Comins and Kaufmann, Discovering the Universe, 7th Ed.)
   A)  About 7%    B)  Very little, less than 1%    C)  93%    D)  58%
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Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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