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

Author Question: The mass of a supermassive black hole thought to power a typical bright active galactic nucleus is ... (Read 27 times)

pane00

  • Hero Member
  • *****
  • Posts: 579
The mass of a supermassive black hole thought to power a typical bright active galactic nucleus is roughly ________.
 
  A) 1 billion solar masses B) 3 solar masses
  C) 10 solar masses D) 1 trillion solar masses

Question 2

A star both twice the diameter and twice the temperature of our Sun would be ________ times more luminous than our Sun; in fact, Vega fits this description well.
 
  Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lou

  • Sr. Member
  • ****
  • Posts: 286
Answer to Question 1

A

Answer to Question 2

64




pane00

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Excellent


brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

For a complete list of videos, visit our video library