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

Author Question: What information does 21-cm radiation provide about the gas clouds? A) their motion B) their ... (Read 39 times)

joesmith1212

  • Hero Member
  • *****
  • Posts: 549
What information does 21-cm radiation provide about the gas clouds?
 
  A) their motion
  B) their density
  C) their temperature
  D) their distribution
  E) all of the above

Question 2

Complex molecules in the interstellar medium are found
 
  A) only around the supergiant stars like Betelgeuse that make their heavy atoms.
  B) uniformly throughout the disk of the Galaxy.
  C) primarily in the dense dust clouds.
  D) scattered evenly throughout the universe, a product of the Big Bang itself.
  E) on the surfaces of the coolest class K and M stars only.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amynguyen1221

  • Sr. Member
  • ****
  • Posts: 355
Answer to Question 1

E

Answer to Question 2

C





 

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?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

For a complete list of videos, visit our video library