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Physics
Physics
Problem
The Sun's life expectancy on the main sequence is about
10
10
10^{10}
1
0
10
years. Which of the following is the best estimate of the lifetime of a star on the main sequence of mass 100 times that of the Sun? a.
10
5
10^5
1
0
5
years b.
10
8
10^8
1
0
8
years c.
10
12
10^{12}
1
0
12
years d.
10
15
10^{15}
1
0
15
years
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