« previous next »

Author Question: Which of the following information is required to compute the mass of a galaxy using the rotation ... (Read 23 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
on: Jul 27, 2018
Which of the following information is required to compute the mass of a galaxy using the rotation curve method?
 
  A) The age of the galaxy
  B) The distance of the galaxy from the nearest rich galaxy cluster
  C) The total number of stars in the galaxy
  D) The true sizes of the orbits of stars or gas clouds within the galaxy

Question 2

The average separation between galaxies is about _____ times their diameter.
 
  A) 6
  B) 20
  C) 105
  D) 1017


nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

BRWH

  • Hero Member
  • *****
  • Posts: 553
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Obtaining protein sequence information with tandem MS Obtaining protein sequence information with tandem MS
The Host Galaxy of a Gamma-Ray Burst The Host Galaxy of a Gamma-Ray Burst
A Simplified Model of Information Flow in Human Memory A Simplified Model of Information Flow in Human Memory
The science-based DRIs serve as the basis for information The science-based DRIs serve as the basis for information
What is the mass of BaCl2 in a 0.250 L bottle of 0.200 M BaCl2? What is the mass of BaCl2 in a 0.250 L bottle of 0.200 M BaCl2?
How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to
Video: Complement Proteins Animation

For a complete list of videos, visit our video library