« previous next »

Author Question: If the rest wavelength of a certain line is 600 nm., but we observe it at 594 nm (Read 2248 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Aug 28, 2013
If the rest wavelength of a certain line is 600 nm., but we observe it at 594 nm, then
A) the source is approaching us at 1 % of the speed of light.
B) the source is approaching us at 0.1 % of the speed of light.
C) the source is receding from us at 10% of the speed of light.
D) the source is getting 1% hotter as we watch.
E) the source is spinning very rapidly, at 1% of the speed of light.


notis

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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

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

The Movius line separates regions of the world where Acheulean hand axes were made from regions wher The Movius line separates regions of the world where Acheulean hand axes were made from regions wher
If you want to show differences between items at the same time, a bar graph is more effective than a If you want to show differences between items at the same time, a bar graph is more effective than a
Relation between form, particular objects, and images in Plato’s Line. Relation between form, particular objects, and images in Plato’s Line.
A mechanical returnless fuel system. The bypass regulator in the fuel tank controls fuel line ... A mechanical returnless fuel system. The bypass regulator in the fuel tank controls fuel line ...
A photon whose wavelength is = 5.0 10-11 m is scattered straight backward. What is the ... A photon whose wavelength is = 5.0 10-11 m is scattered straight backward. What is the ...
The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ... The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ...
Video: Muscle Twitch and Muscle Tension - Motor unit size and force

For a complete list of videos, visit our video library