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 63 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
Excellent


miss.ashley

  • Member
  • Posts: 371
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

For a complete list of videos, visit our video library