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 77 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
Wow, this really help

skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Sunset Diagram of changes in East and West from Solstice Sunset Diagram of changes in East and West from Solstice
A simple diagram of bone marrow progenitors. All of the cells listed can be transformed to become a ... A simple diagram of bone marrow progenitors. All of the cells listed can be transformed to become a ...
Black Hole and Companion Star Black Hole and Companion Star
. Calculate the net electric field at point B . Calculate the net electric field at point B
Four 2.0-µC point are at the corners of a rectangle with sides of length 3.0 cm and 4.0 cm. ... Four 2.0-µC point are at the corners of a rectangle with sides of length 3.0 cm and 4.0 cm. ...
Flo Hyman was a 6 foot 5 inch star on the U.S. women’s volleyball team that won a silver medal in ... Flo Hyman was a 6 foot 5 inch star on the U.S. women’s volleyball team that won a silver medal in ...
Video: Hormonal regulation of pregnancy - week 1

For a complete list of videos, visit our video library