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

Author Question: Active galaxies are believed to be the product of collisions and interactions because ____. a. ... (Read 88 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
on: Jul 27, 2018
Active galaxies are believed to be the product of collisions and interactions because ____.
 
  a. they are always seen in contact with another galaxy
 b. the transfer of matter would explain the black hole eruption
 c. the collision of individual stars would explain the black hole eruption
  d. central bulges are formed by collisions
 e. supermassive black holes are necessary for galactic collisions

Question 2

The _______________ effect changes the observed wavelength of an emitted photon if the source is moving toward or away from the observer.
 
  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

prumorgan

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

Doppler


haleyc112

  • Hero Member
  • *****
  • Posts: 600
Reply #2 on: Jul 27, 2018
Thank you!


prumorgan

  • Sr. Member
  • ****
  • Posts: 326
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Barred Spiral Galaxies Barred Spiral Galaxies
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Distant Galaxies Distant Galaxies
Clinically Significant Drug-Drug Interactions in Dentistry Clinically Significant Drug-Drug Interactions in Dentistry
Unusual base pairings in tRNA: (c, d) Some examples of triple interactions Unusual base pairings in tRNA: (c, d) Some examples of triple interactions
Find derivative using product rule Find derivative using product rule
Video: Parkinson's Disease

For a complete list of videos, visit our video library