Author Question: We know Mercury must have a large metal core because it has a high density. Indicate whether the ... (Read 84 times)

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
We know Mercury must have a large metal core because it has a high density.
 
  Indicate whether the statement is true or false

Question 2

In the unified model of active galactic nuclei, the broad line region in an active galactic nucleus is
 
  a. composed of clouds of gas and stars moving at very high orbital velocities near a supermassive black hole.
  b. composed of a super massive black hole surrounded with empty space
  c. responsible for producing the bright continuous radiation from within the event horizon.
  d. responsible for the narrow absorption lines seen in Type 2 Seyfert galaxies.
  e. located far from the core beyond the disk of stars of the galaxy



momolu

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

T

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

RYAN BANYAN

  • Hero Member
  • *****
  • Posts: 563
Both answers were spot on, thank you once again



momolu

  • Sr. Member
  • ****
  • Posts: 320

 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

For a complete list of videos, visit our video library