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

Author Question: The mass of a supermassive black hole thought to power a typical bright active galactic nucleus is ... (Read 34 times)

pane00

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

64


pane00

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

billybob123

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

ACNE black head. ACNE black head.
POWER POINT PRESENTATION logo POWER POINT PRESENTATION logo
Mechanisms of active and passive immunity. Mechanisms of active and passive immunity.
Typical characteristics of r-selected and k-selected species Typical characteristics of r-selected and k-selected species
Active solar technologies use for heat, cool, and produce electricity Active solar technologies use for heat, cool, and produce electricity
Bright-Line Spectra of Hydrogen and Helium Bright-Line Spectra of Hydrogen and Helium
Video: Inflammatory response Animation

For a complete list of videos, visit our video library