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

Author Question: Why do astronomers believe supermassive black holes are the source of an AGN's energy? a. Such ... (Read 83 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
on: Jul 27, 2018
Why do astronomers believe supermassive black holes are the source of an AGN's energy?
 
  a. Such black holes have been found at the center of most galaxies, both active and inactive.
  b. Radio jets are seen from low-mass black holes plus accretion disks inside our galaxy.
  c. Jets and accretion disks have been observed in active galaxies.
  d. Black holes can produce so much energy in such a small place.
  e. All of the other choices are correct.

Question 2

When material expanding away from a star in a binary system leaves a star's Roche lobe,
 
  a. the material will start to fall back toward the star.
  b. all of the material will accrete on to the companion.
  c. the material is no longer gravitationally bound to that star.
  d. the material will increase in temperature an eventually undergo thermonuclear fusion.
  e. c and d.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mmj22343

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

e

Answer to Question 2

c


tingc95

  • Member
  • Posts: 556
Reply 2 on: Jul 27, 2018
Gracias!

tanna.moeller

  • Member
  • Posts: 328
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

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

The proportion of men and women with elevated blood pressure or taking hypertension medication incre The proportion of men and women with elevated blood pressure or taking hypertension medication incre
Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr
Ancient drawing of energy channels and acupoints. Ancient drawing of energy channels and acupoints.
Nuclear energy Nuclear energy
Global energy consumption is rising rapidly Global energy consumption is rising rapidly
Energy Balance Is Achieved When Energy (Calories) In Equals Energy (Calories) Out Energy Balance Is Achieved When Energy (Calories) In Equals Energy (Calories) Out
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library