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

Author Question: Which of the following is evidence for supermassive black holes in active galaxies? A) the ... (Read 91 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
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
Answer to Question 1

E

Answer to Question 2

D




kfurse

  • Member
  • Posts: 590
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it


billybob123

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

 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

The human body produces and destroys 15 million blood cells every second.

For a complete list of videos, visit our video library