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

Author Question: The concept that the direction of observation does NOT matter overall is A) universality. B) ... (Read 63 times)

809779

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
The concept that the direction of observation does NOT matter overall is
 
  A) universality.
  B) homogeneity.
  C) geometry.
  D) isotropy.
  E) relativity.

Question 2

What is the best way to determine a galaxy's redshift?
 
  A) Find the galaxy's apparent distance, and look up the redshift based on Hubble's Law.
  B) Find the color of the galaxy, and estimate its distance based on how red the galaxy is.
  C) Measure the magnitude of the galaxy, estimate its distance, and calculate its redshift using Hubble's Law.
  D) Take a spectrum of the galaxy, and measure the difference in wavelength of spectral lines from the wavelengths of those same lines as measured in the laboratory.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

josephsuarez

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


809779

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 27, 2018
TY


josephsuarez

  • Sr. Member
  • ****
  • Posts: 323
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

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

A laser-guided observation of the Milky Way Galaxy at the Paranal Observatory in Chile in 2010. A laser-guided observation of the Milky Way Galaxy at the Paranal Observatory in Chile in 2010.
The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth
A Circumstellar Disk of Matter A Circumstellar Disk of Matter
Concept map for jacob's awareness Concept map for jacob's awareness
Gray Matter Development over the Surface of the Cortex Gray Matter Development over the Surface of the Cortex
Interactions of Light and Matter Interactions of Light and Matter
Video: Introduction to filtration - filtrate formation and composition

For a complete list of videos, visit our video library