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

Author Question: The Hubble law is one of the most important relations in modern astronomy because it ____. a. ... (Read 226 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
The Hubble law is one of the most important relations in modern astronomy because it ____.
 
  a. allows astronomers to measure the distance to very distant galaxies using only their spectrum
  b. explains the difference in the types of galaxies seen in different directions
 c. relates the rotation curve of a galaxy to the amount of dark matter it contains
 d. connects the mass of a spiral galaxy's bulge to the size of its central black hole
 e. determines the mass of a cluster using the rotation period of the galaxies it contains

Question 2

What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries and the soon-to-be-built Giant Magellan Telescope?
 
  a. The mirrors are made of a newly designed metallic material.
  b. The mirrors can fold up went not in use.
 c. The mirrors are inexpensive.
 d. The mirrors are segmented.
 e. The mirrors are thin.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vickyvicksss

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

d


melina_rosy

  • Member
  • Posts: 531
Reply 2 on: Jul 27, 2018
Wow, this really help

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

DNA analysis of phylogenetic relationships among modern and extinct flightless birds by Cooper and c DNA analysis of phylogenetic relationships among modern and extinct flightless birds by Cooper and c
The work of Charles Darwin forms the foundation for modern evolutionary theory. The work of Charles Darwin forms the foundation for modern evolutionary theory.
Two important changes occur in the upper airway in croup:The epiglottis swells, thereby occluding th Two important changes occur in the upper airway in croup:The epiglottis swells, thereby occluding th
Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt
Human Relations: The Art and Science of Building Effective Relationships Human Relations: The Art and Science of Building Effective Relationships
Birth of Modern Astronomy Birth of Modern Astronomy
Video: Glycolysis - and oxygen

For a complete list of videos, visit our video library