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 63 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?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

For a complete list of videos, visit our video library