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

Author Question: The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines. ... (Read 116 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jul 27, 2018
The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines.
 
  Indicate whether the statement is true or false

Question 2

If the Sun-Earth separation were 10 AU instead of 1 AU, what would the ux of sunlight (energy per second per square meter) be at the Earth, compared to what it is today?
 
  A) 100 times more
  B) 10 times less
  C) about 3.16 (or the square root of 10 ) times less
  D) 10 times more
  E) 100 times less


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

E


K@

  • Member
  • Posts: 608
Reply 2 on: Jul 27, 2018
Gracias!

DylanD1323

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Gas Solubility - Effect of pressure Gas Solubility - Effect of pressure
Star Map Eastern Horizon Star Map Eastern Horizon
The Rotation Curves of Four Spiral Galaxies The Rotation Curves of Four Spiral Galaxies
Display is the only position to view the firing lines of all cylinders. Cylinder 1 is displayed on ... Display is the only position to view the firing lines of all cylinders. Cylinder 1 is displayed on ...
Two wells are filled with different antigens and when they diffuse, they form lines that cross which ... Two wells are filled with different antigens and when they diffuse, they form lines that cross which ...
The effect of disruptive selection on bristle number in Drosophila The effect of disruptive selection on bristle number in Drosophila
Video: Digestive chemicals - water, gastric acid, bile & bicarbonate

For a complete list of videos, visit our video library