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

Author Question: A cluster containing a thousand or more galaxies, usually mostly ellipticals, scattered over a ... (Read 62 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
on: Jul 27, 2018
A cluster containing a thousand or more galaxies, usually mostly ellipticals, scattered over a volume only a few Mpc in diameter is referred to as a(n) _____.
 
  A) elliptical galaxy cluster
  B) irregular galaxy cluster
  C) poor galaxy cluster
  D) rich galaxy cluster

Question 2

The Andromeda Galaxy has a look-back time of:
 
  A) 4 years.
  B) 2000 years.
  C) 2 million years.
  D) 2 billion years.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vish98

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

D

Answer to Question 2

C


madam-professor

  • Member
  • Posts: 584
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

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.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Spiral Galaxies (Nearly Face-on Views) Spiral Galaxies (Nearly Face-on Views)
Giant Elliptical Galaxies Giant Elliptical Galaxies
Galaxies with Rings Galaxies with Rings
Isaac Julien, Ten Thousand Waves. Isaac Julien, Ten Thousand Waves.
Galaxies Galaxies
Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap
Video: Neurosynapse Animation

For a complete list of videos, visit our video library