This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The energy from the accretion disk around a black hole would show gravitational red shift due to its ... (Read 89 times)

skymedlock

  • Hero Member
  • *****
  • Posts: 561
on: Jul 27, 2018
The energy from the accretion disk around a black hole would show gravitational red shift due to its immense gravity and tidal distortion of space there.
 
  Indicate whether the statement is true or false

Question 2

If a galaxy's overall mass-to-light ratio is 100 solar masses per solar luminosity, and its stars account for only 5 solar masses per solar luminosity, how much of the galaxy's mass must be dark matter?
 
  A) 100 percent
  B) 95 percent
  C) 80 percent
  D) 50 percent
  E) 5 percent


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

B


skymedlock

  • Hero Member
  • *****
  • Posts: 561
Reply #2 on: Jul 27, 2018
Thanks


brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Zebras are several species of African equids (horse family) united by their distinctive black and wh Zebras are several species of African equids (horse family) united by their distinctive black and wh
Black Terra Hot Dog Black Terra Hot Dog
Thin disk specimens of aluminum oxide Thin disk specimens of aluminum oxide
Black Truffles Black Truffles
how much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C? how much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C?
Selected hormones and their role in energy intake Selected hormones and their role in energy intake
Video: Exercise and cardiac output

For a complete list of videos, visit our video library