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Keith_Richards [23]
3 years ago
7

What happens when a main-sequence star exhausts its core hydrogen fuel supply?

Physics
1 answer:
Ivanshal [37]3 years ago
8 0

Explanation:

when a main-sequence star exhausts its core hydrogen fuel supply the core starts to shrink ( lack of fusion reactions) and the rest of the star starts to expands. The fusion reaction leaves the main sequence and begin to fuse helium in a shell outside the core. This mass stars become red supergiant  and then evolve to become blue super giant.

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A camera lens with focal length f = 50 mm and maximum aperture f>2
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Answer:

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Explanation:

Given  

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s =  9.0 m

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Now  

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A swing has a period of 10 seconds. What is its frequency ?
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Answer: Remember speed is distance divided by time, so if he travels 1000 m in 7.045 s, his speed is

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