Homework Help: Physics

Posted by Archillis on Thursday, April 8, 2010 at 11:01pm.

A radio station broadcasting on a frequency of 106 MHz is received by an astronaut headed toward the station at a speed 4.0×107 m/s. To what frequency must the astronaut's radio be tuned?( use MHz for final unit answers)

Physics - drwls, Friday, April 9, 2010 at 2:42am
Use the relavistic doppler shift formula.
It does not depend upon which object is moving; only the relative velocity matters. The formula can be found at
http://en.wikipedia.org/wiki/Relativistic_Doppler_effect
and probably also in your textbook.
In your case, the relative velocity is 0.133 of the speed of light.
The received frequency will be higher by a factor
sqrt(1.133/0.867) = 1.143

Answer this Question

Related Questions

Chemistry - Suppose you are standing 201 m from a radio transmitter. What is ...
chemistry please help - The FM band of radio waves are measured in megahertz (...
Physics - Radio waves travel at the speed of light, which is 3.00 108 m/s. What ...
Chemistry - A radio station's channel, such as 100.7 FM or 92.3 FM, is ...
CHEM! - A radio station's channel, such as 100.7 FM or 92.3 FM, is actually ...
physics - What is the wavelength of the radio waves broadcast by an FM radio ...
Physics - A radio station uses broadcasting at 600 kHz. What is the wavelength ...
Physics - Radio waves are electromagnetic waves that travel at a speed of 3.00 ...
chemistry - A radio station's channel, such as 100.7 FM or 92.3 FM, is ...
physics - A certain FM radio station broadcasts jazz music at a frequency of 90....

For Further Reading

First Name:
School Subject:
Answer: