« previous next »

Author Question: Which of the following information is required to compute the mass of a galaxy using the rotation ... (Read 54 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?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Galaxy Galaxy
Conditions Required for Bacterial Growth Conditions Required for Bacterial Growth
A Bluetooth adapter that plugs into the DLC and transmits global OBD II information to a smart phone ... A Bluetooth adapter that plugs into the DLC and transmits global OBD II information to a smart phone ...
The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ... The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ...
Use the information in the above table to establish a Born-Haber cycle to determine the ... Use the information in the above table to establish a Born-Haber cycle to determine the ...
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: Nucleic acid digestion -small intestine

For a complete list of videos, visit our video library