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

Author Question: What is meant by dark energy? A) the energy associated with dark matter through E=mc2 B) any ... (Read 92 times)

nelaaney

  • Hero Member
  • *****
  • Posts: 560
What is meant by dark energy?
 
  A) the energy associated with dark matter through E=mc2
  B) any unknown force that opposes gravity
  C) the repulsive agent causing the universal expansion to accelerate
  D) highly energetic particles that are believed to constitute dark matter
  E) the total energy in the Universe after the Big Bang but before the first stars

Question 2

If you were to take a voyage across the Milky Way, what kind of material would you spend most of your time in?
 
  A) empty spacea pure vacuum
  B) dusty molecular clouds
  C) star clusters
  D) warm, rarefied clouds of atomic hydrogen
  E) cool, dense clouds of atomic hydrogen



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fur

  • Sr. Member
  • ****
  • Posts: 309
Answer to Question 1

C

Answer to Question 2

D




nelaaney

  • Member
  • Posts: 560
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


deja

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

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?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

For a complete list of videos, visit our video library