This topic contains a solution. Click here to go to the answer

Author Question: The key point to remember when considering the Hertzsprung-Russell (H-R) diagram of a star cluster ... (Read 66 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jazzlynnnnn

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

B

Answer to Question 2

A




madam-professor

  • Member
  • Posts: 584
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


jordangronback

  • Member
  • Posts: 339
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

For a complete list of videos, visit our video library