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Author Question: The key point to remember when considering the Hertzsprung-Russell (H-R) diagram of a star cluster ... (Read 27 times)

madam-professor

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on: Jul 27, 2018
The key point to remember when considering the Hertzsprung-Russell (H-R) diagram of a star cluster in determining the evolution of stars is that all of the stars in the star cluster have the same:
 
  A) temperature but differ in luminosity.
  B) age but differ in mass.
  C) size but differ in composition.
  D) shape but differ in transparency.

Question 2

A star remains on the main sequence for a time span equal to _____ of its total existence as an energy-generating star.
 
  A) 90 percent
  B) 40 percent
  C) 15 percent
  D) 55 percent


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jazzlynnnnn

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

B

Answer to Question 2

A


madam-professor

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Reply 2 on: Jul 27, 2018
Gracias!

komodo7

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

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