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

Author Question: Which of the following is evidence for supermassive black holes in active galaxies? A) the ... (Read 108 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
on: Jul 27, 2018
Which of the following is evidence for supermassive black holes in active galaxies?
 
  A) the discovery of powerful jets coming from a compact core
  B) rapid changes in the luminosity of the galaxy nucleus
  C) quasars emit approximately equal power at all wavelengths from infrared to gamma rays
  D) very high speed orbital motions around galactic nuclei
  E) all of the above

Question 2

Carol is going away from you at 75 km/hr, and Sam is going in the opposite direction away from you at 90 km/hr. According to Carol, how fast is Sam going?
 
  A) Carol sees Sam going away from her at 75 km/hr.
  B) Carol sees Sam going away from her at 90 km/hr.
  C) Carol sees Sam going away from her at 15 km/hr.
  D) Carol sees Sam going away from her at 165 km/hr.
  E) Carol sees Sam coming toward her at 15 km/hr.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parker125

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

D


kfurse

  • Member
  • Posts: 590
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

alexanderhamilton

  • Member
  • Posts: 334
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Fossil and modern stromatolites: evidence of autotrophic cyanobacteria. Fossil and modern stromatolites: evidence of autotrophic cyanobacteria.
The black-capped chickadee is a permanent resident in biomes with harsh winter conditions. The black-capped chickadee is a permanent resident in biomes with harsh winter conditions.
The black-legged tick transmits Lyme disease The black-legged tick transmits Lyme disease
black widow black widow
Supermassive Black Hole Supermassive Black Hole
Video: What is an ecosystem?

For a complete list of videos, visit our video library