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 56 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
Gracias!

upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Methods to Document Peripheral Pulses A. Stick Figure Peripheral Pulse Documentation B. Tabular Peri Methods to Document Peripheral Pulses A. Stick Figure Peripheral Pulse Documentation B. Tabular Peri
Skin closure methods Skin closure methods
An H-R Diagram of a Globular Cluster An H-R Diagram of a Globular Cluster
Barred Spiral Galaxies Barred Spiral Galaxies
Research Methods Research Methods
A triatomic molecule is oriented as follows along the x-axis: atom 1 of mass m is at the ... A triatomic molecule is oriented as follows along the x-axis: atom 1 of mass m is at the ...
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library