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

Author Question: According to the unified model of active galactic nuclei, ___________ is in the center surrounded by ... (Read 61 times)

Mollykgkg

  • Hero Member
  • *****
  • Posts: 529
According to the unified model of active galactic nuclei, ___________ is in the center surrounded by _____________with a Type 1 Seyfert or Type 2 Seyfert being seen depending on the viewing angle.
 
  a. a supermassive black hole; an accretion disk
  b. a supermassive black hole; empty space
  c. no black hole; an accretion disk
  d. no black hole; empty space

Question 2

Stars in a star cluster
 
  a. all have the same age.
  b. all have the same chemical composition.
  c. all have the same luminosity.
  d. all of the above.
  e. all have the same age and all have the same chemical composition.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frre432

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

a

Answer to Question 2

e




Mollykgkg

  • Member
  • Posts: 529
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


bimper21

  • Member
  • Posts: 309
Reply 3 on: Yesterday
Gracias!

 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

For a complete list of videos, visit our video library