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 32 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

isabelt_18

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

An H-R Diagram of a Globular Cluster An H-R Diagram of a Globular Cluster
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
Barred Spiral Galaxies Barred Spiral Galaxies
Irregular Galaxies Irregular Galaxies
Interacting and Colliding Galaxies Interacting and Colliding Galaxies
Creation of Spiral and Elliptical Galaxies Creation of Spiral and Elliptical Galaxies
Video: Activation Energy - Valence Electrons

For a complete list of videos, visit our video library