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 74 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
Gracias!


Sarahjh

  • Member
  • Posts: 370
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

For a complete list of videos, visit our video library