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Author Question: As a 4-10 solar mass star leaves the main sequence on its way to becoming a red supergiant, its ... (Read 70 times)

Coya19@aol.com

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As a 4-10 solar mass star leaves the main sequence on its way to becoming a red supergiant, its luminosity
 
  A) decreases.
  B) first decreases, then increases.
  C) increases.
  D) remains roughly constant.
  E) first increases, then decreases.

Question 2

Studies of sunquakes, or helioseismology, have revealed that
 
  A) the Sun vibrates only on the surface.
  B) sunquakes are caused by similar processes that create earthquakes on Earth.
  C) the Sun generates energy by nuclear fusion.
  D) our mathematical models of the solar interior are fairly accurate.
  E) neutrinos from the solar core reach the solar surface easily.



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shoemake

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Answer to Question 1

D

Answer to Question 2

D




Coya19@aol.com

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Reply 2 on: Jul 27, 2018
Gracias!


brbarasa

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Reply 3 on: Yesterday
Wow, this really help

 

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