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

Author Question: Astronomers know the universe is expanding because: A) everything is moving away from us. B) all ... (Read 41 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 27, 2018
Astronomers know the universe is expanding because:
 
  A) everything is moving away from us.
  B) all stars are moving away from us.
  C) most galaxies are moving away from us.
  D) galaxies farther away are moving away from us faster.
  E) there is a cosmic microwave background.

Question 2

What makes the Crab Nebula supernova remnant unusual as a supernova remnant?
 
  A) It is the biggest supernova remnant visible.
  B) It is the remnant of a supernova that was observed in the 20th century.
  C) It is the nearest supernova remnant.
  D) It is the oldest supernova remnant known.
  E) It is the remnant of a supernova observed by humans.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mmj22343

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

E


rmenurse

  • Member
  • Posts: 513
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

vickybb89

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

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?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Structure of the Early Universe Structure of the Early Universe
Cross-fiber friction to the paraspinal muscles. Friction is created by moving the more superficial ... Cross-fiber friction to the paraspinal muscles. Friction is created by moving the more superficial ...
Apply effleurage to both sides of the upper trapezius using loose fists. When moving laterally, ... Apply effleurage to both sides of the upper trapezius using loose fists. When moving laterally, ...
The Universe According to Ptolemy, Second Century A.D. The Universe According to Ptolemy, Second Century A.D.
If a meteor (148 kg) is moving with a velocity of 112 m/s , and breaks into two parts, where ... If a meteor (148 kg) is moving with a velocity of 112 m/s , and breaks into two parts, where ...
Video: Mitochondrial Structure & ETC Protein Complexes (Protein Complexes and Electron Transport)

For a complete list of videos, visit our video library