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

Author Question: What evidence do we have that the halo population of stars are older than other stars in the galaxy? ... (Read 77 times)

james

  • Hero Member
  • *****
  • Posts: 573
on: Jul 27, 2018
What evidence do we have that the halo population of stars are older than other stars in the galaxy?
 
  A) They are farther away.
  B) They have higher masses than other stars in the galaxy.
  C) They have fewer planets.
  D) They have a smaller proportion of heavy elements.
  E) They move slower than other stars in the galaxy.

Question 2

What is the ultimate fate of an open universe?
 
  A) the Big Crunch
  B) Stars will expand away from each other and galaxies effectively evaporate.
  C) All matter decays to a low-density sea of photons and subatomic particles.
  D) All matter eventually ends up in massive black holes.
  E) Individual stars die but their gas is recycled through the interstellar medium and new stars form in a never-ending process.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


james

  • Hero Member
  • *****
  • Posts: 573
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

A Starburst Galaxy A Starburst Galaxy
Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a
Common skin signs are often evidence of an illness or disorder. A scale is a thin, dry flake of ... Common skin signs are often evidence of an illness or disorder. A scale is a thin, dry flake of ...
Number of positive, negative, and neutral images recalled by younger, middle-age, and older adults. ... Number of positive, negative, and neutral images recalled by younger, middle-age, and older adults. ...
How Fast is the World's Population Growing? How Fast is the World's Population Growing?
Time vs. USA Population Exponential Time vs. USA Population Exponential
Video: Oral Hygiene & Braces Animation

For a complete list of videos, visit our video library