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Author Question: Mercury completes one orbit around the Sun in 8 days. a. True b. False Indicate whether the ... (Read 152 times)

@Brianna17

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on: Jul 27, 2018
Mercury completes one orbit around the Sun in 8 days.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Why is there a lower end in the main sequence of the H-R diagram?
 
  What will be an ideal response?


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cici

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Reply #1 on: Jul 27, 2018
Answer to Question 1

False

Answer to Question 2

The lower end in the main sequence show objects that are less massive, stars less than 0.08 solar masses cannot get hot enough in their cores to ignite hydrogen fusion. These brown dwarfs cannot ignite hydrogen, so they contract slowly, convert their gravitational energy into thermal energy, and radiate it away.


@Brianna17

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

Jossy

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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