This topic contains a solution. Click here to go to the answer

Author Question: The concept that the direction of observation does NOT matter overall is A) universality. B) ... (Read 60 times)

809779

  • Hero Member
  • *****
  • Posts: 579
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
Answer to Question 1

D

Answer to Question 2

D





 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

For a complete list of videos, visit our video library