This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The key point to remember when considering the Hertzsprung-Russell (H-R) diagram of a star cluster ... (Read 57 times)

madam-professor

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


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

B

Answer to Question 2

A


madam-professor

  • Member
  • Posts: 584
Reply 2 on: Jul 27, 2018
:D TYSM

connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Hertzsprung–Russell diagram Hertzsprung–Russell diagram
Bacteria Diagram Bacteria Diagram
Torque is a twisting force equal to the distance from the pivot point times the force applied ... Torque is a twisting force equal to the distance from the pivot point times the force applied ...
How to use a tree diagram to find the probability How to use a tree diagram to find the probability
Give the world a reason to remember your name Give the world a reason to remember your name
Mottled Sea Star (Evasterias troschelii) eating a clam, Alaska. Mottled Sea Star (Evasterias troschelii) eating a clam, Alaska.
Video: Nerve Impulse Transmission Animation

For a complete list of videos, visit our video library