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

Author Question: Quasars are____. a. spiral galaxies with unusually luminous nuclei b. elliptical galaxies with ... (Read 173 times)

silviawilliams41

  • Hero Member
  • *****
  • Posts: 560
Quasars are____.
 
  a. spiral galaxies with unusually luminous nuclei
 b. elliptical galaxies with very broad emission lines
 c. explained by the double-exhaust model
 d. extremely luminous objects with high redshifts
 e. glowing green gases due to excitation from energy from an active core

Question 2

According to Wien's Law, a(n) ____.
 
  a. hotter object will emit more short wavelength (bluer) radiation
 b. hotter object will emit more long wavelength (redder) radiation
 c. cooler object will produce less photons
 d. cooler object will produce more photons
 e. object will produce the same number of photons at different temperatures



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Tonny

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

d

Answer to Question 2

a





 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

For a complete list of videos, visit our video library