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

Author Question: If the redshifts of quasars arise from the expansion of the universe yet they have brighter ... (Read 22 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
If the redshifts of quasars arise from the expansion of the universe yet they have brighter magnitudes than galaxies with the same redshifts, the quasar must
 
  a. be very small.
  b. be within the Local Group.
  c. be a single star with an extremely large mass.
  d. be moving toward Earth with a large radial velocity.
  e. emit a very large amount of energy per second.

Question 2

_________ is a form of electromagnetic radiation produced by rapidly moving electrons spiraling through magnetic fields.
 
  a. Lagrangian radiation
  b. Accretion
  c. Ultraviolet radiation
  d. Synchrotron radiation
  e. Infrared radiation



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diesoon

  • Sr. Member
  • ****
  • Posts: 353
Answer to Question 1

e

Answer to Question 2

d




Mr. Wonderful

  • Member
  • Posts: 866
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Excellent

 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

For a complete list of videos, visit our video library