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

Author Question: The total energy emitted by the brightest nova explosions is about: A) 1,000 Suns. B) 50,000 ... (Read 35 times)

imanialler

  • Hero Member
  • *****
  • Posts: 539
The total energy emitted by the brightest nova explosions is about:
 
  A) 1,000 Suns.
  B) 50,000 Suns.
  C) a million Suns.
  D) a billion Suns.
  E) a trillion Suns.

Question 2

Rotation curves for spiral galaxies show:
 
  A) they are slowing down.
  B) rotation speed drops off further from the nucleus.
  C) most have dark halos.
  D) most of the mass lies in the nucleus.
  E) no relation to mass.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amandanbreshears

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

C

Answer to Question 2

C




imanialler

  • Member
  • Posts: 539
Reply 2 on: Jul 27, 2018
:D TYSM


smrtceo

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

For a complete list of videos, visit our video library