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 233 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
Gracias!

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

A 1998 false-colour near-infrared image of Uranus showing cloud bands, rings, and moons obtained by A 1998 false-colour near-infrared image of Uranus showing cloud bands, rings, and moons obtained by
The Hubble Law The Hubble Law
Modern Systems Analysis and Design (4th Edition) Modern Systems Analysis and Design (4th Edition)
Modern Armadillo versus a Fossil Glyptodon Modern Armadillo versus a Fossil Glyptodon
The distribution of Neandertal and Denisovan DNA in the modern human genome The distribution of Neandertal and Denisovan DNA in the modern human genome
Adaptive alleles in modern humans Adaptive alleles in modern humans
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library