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

Author Question: You observe the same spectral line in two stars that are identical in every way except that one ... (Read 64 times)

Beheh

  • Hero Member
  • *****
  • Posts: 520
on: Jul 27, 2018
You observe the same spectral line in two stars that are identical in every way except that one rotates faster than the other. How does the spectral line differ between the two?
 
  A) There is no difference.
  B) The line in the faster rotating star is blueshifted.
  C) The line in the faster rotating star is redshifted.
  D) The line in the faster rotating star is broader.
  E) The line in the faster rotating star is narrower.

Question 2

Why are the temperature fluctuations observed in the cosmic microwave background are important?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Koolkid240

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

The angular scale of the fluctuations indicates that the density of the universe is very close to the critical density. The variations in temperature are consistent with dark matter models.


Beheh

  • Hero Member
  • *****
  • Posts: 520
Reply #2 on: Jul 27, 2018
Thank you!


Koolkid240

  • Sr. Member
  • ****
  • Posts: 357
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Pre–Main-Sequence Stars Pre–Main-Sequence Stars
Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken
Line immunoassay (LIA), also recombinant immunoblot assay (RIBA) and Immuno-stripe, is similar to a ... Line immunoassay (LIA), also recombinant immunoblot assay (RIBA) and Immuno-stripe, is similar to a ...
#38.Genetically identical organisms derived from a single genetic source are #39 #38.Genetically identical organisms derived from a single genetic source are #39
identical (left) and fraternal (right) twins identical (left) and fraternal (right) twins
Opener Spectral karyotyping of human chromosomes Opener Spectral karyotyping of human chromosomes
Video: DNA fingerprinting Animation

For a complete list of videos, visit our video library