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 162 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?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Representatives of many tomato lines Representatives of many tomato lines
The asymmetrical appearance of Mira, an oscillating variable star. The asymmetrical appearance of Mira, an oscillating variable star.
D-Glucose Spectrum D-Glucose Spectrum
A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ... A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ...
Hydrogen bond Hydrogen bond
Sea star Sea star
Video: Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library