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

Author Question: Which of the following methods used to determine the mass of a cluster of galaxies does not depend ... (Read 25 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Which of the following methods used to determine the mass of a cluster of galaxies does not depend on Newton's law of gravity?
 
  A) measuring the amount of distortion caused by a gravitational lens
  B) measuring the temperature of X-ray gas in the intracluster medium
  C) measuring the orbital velocities of galaxies in the cluster
  D) none of the above

Question 2

Cometary dust tails lag behind the bluish ion tails as the comet rounds the Sun.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ttt030911

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

TRUE


mynx

  • Member
  • Posts: 555
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Post–Main-Sequence Evolution of Low-Mass Stars Post–Main-Sequence Evolution of Low-Mass Stars
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Piaget was one of the first to go beyond observable behavior in an attempt to determine how infants ... Piaget was one of the first to go beyond observable behavior in an attempt to determine how infants ...
How to calculate the DRT to determine which is more effective against the pathogen How to calculate the DRT to determine which is more effective against the pathogen
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Use of forward and reverse genetics to determine gene function Use of forward and reverse genetics to determine gene function
Video: Neuron Type Animation

For a complete list of videos, visit our video library