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

Author Question: How can close analysis of the spectra of quasars let us map the whole universe? What will be an ... (Read 70 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
on: Jul 27, 2018
How can close analysis of the spectra of quasars let us map the whole universe?
 
  What will be an ideal response?

Question 2

Compared to a type A0 star, a type A9 star is
 
  A) bluer.
  B) more massive.
  C) cooler.
  D) hotter.
  E) more luminous.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

samiel-sayed

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

In addition to the emission lines made by the quasar, absorption lines reveal gas clouds that lie between us and the quasar. The closer clouds show smaller redshifts, so their distances and structures can also be mapped.

Answer to Question 2

C


luvbio

  • Member
  • Posts: 623
Reply 2 on: Jul 27, 2018
:D TYSM

AngeliqueG

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

How stomatal pores open and close. How stomatal pores open and close.
Beetle Leg close up Beetle Leg close up
Western blot analysis of viral antigens. The nitrocellulose strips from the kit contain blotted ... Western blot analysis of viral antigens. The nitrocellulose strips from the kit contain blotted ...
Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away
In the PCR amplification and analysis of one STR locus In the PCR amplification and analysis of one STR locus
Global analysis of yeast deletion mutants Global analysis of yeast deletion mutants
Video: Cellular slime mold life cycle Animation

For a complete list of videos, visit our video library