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

Author Question: Doppler shifted hydrogen absorption lines are seen in the spectrum of a star. The hydrogen line at ... (Read 166 times)

Tirant22

  • Hero Member
  • *****
  • Posts: 532
on: Jul 27, 2018
Doppler shifted hydrogen absorption lines are seen in the spectrum of a star. The hydrogen line at 656.28 nm is seen to be shifted to 656.08 nm.
 
  How fast is the star moving (Note: The speed of light is approximately 300,000 km/s, or 3  105 km/s.)?
  A) about 10,000 km/s B) about 1,000 km/s
  C) about 1,000,000 km/s D) about 100 km/s

Question 2

The chromosphere is the layer of the Sun that we see as its visible surface.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

beccamahon

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

FALSE


Tirant22

  • Hero Member
  • *****
  • Posts: 532
Reply #2 on: Jul 27, 2018
Thanks


beccamahon

  • Sr. Member
  • ****
  • Posts: 338
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M
Spectra of a Metal-Poor and a Metal-Rich Star Spectra of a Metal-Poor and a Metal-Rich Star
The end of a typical line wrench, which shows that it is capable of grasping most of the head of ... The end of a typical line wrench, which shows that it is capable of grasping most of the head of ...
The Electromagnetic Spectrum The Electromagnetic Spectrum
Comparison of the action spectrum and the absorption spectrum Comparison of the action spectrum and the absorption spectrum
Video: Glucose Evaluation Procedure

For a complete list of videos, visit our video library