« previous next »

Author Question: The observed spectral lines of a star are all shifted towards the red end of the (Read 1779 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Aug 28, 2013
The observed spectral lines of a star are all shifted towards the red end of the spectrum.   
Which statement is true?
A) This is an example of the photoelectric effect.
B) This is an example of the Doppler effect.
C) The second law of Kirchhoff explains this.
D) The star is not rotating.
E) The star has a radial velocity towards us.


notis

  • Hero Member
  • *****
  • Posts: 596
Reply #1 on: Aug 28, 2013
I know the answer! It's B.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

How the law of segregation of alleles explains Mendel's observed ratios How the law of segregation of alleles explains Mendel's observed ratios
The Sun is the star at the center of the Solar System. The Sun is the star at the center of the Solar System.
A Star with Three Planets A Star with Three Planets
Dred Scott and his wife and children are featured on the cover of Frank Leslie’s Illustrated Newspap Dred Scott and his wife and children are featured on the cover of Frank Leslie’s Illustrated Newspap
The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve. The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve.
QTL analysis in introgression lines QTL analysis in introgression lines
Video: Pores and Ion Channels

For a complete list of videos, visit our video library