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Tsync Tsync
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8 years ago
A 20 solar mass star will stay on the main sequence for 10 million years, yet its iron core can exist for only a:
A) century.      B) day.       C) year.      D) month.      E) week.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 187 times
3 Replies
Minoring in physics
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Answer verified by a subject expert
RatatouilleRatatouille
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8 years ago
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Tsync Author
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8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
wrote...
8 years ago
Happy to help Slight Smile
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