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Radar uses electromagnetic waves to find the distance between to points. The speed of electromagnetic waves is the speed of light, 300 Millinmeters/second or 600 Million Nautical Miles per hour or 10 Million Nautical Miles per minute or 6 microsecond per mile..
The distance is r=ct where c is the speed of light. Radar finds the distance by r=c2t, the 2t is ther round trip time of radar. For example it takes light 500 seconds to arrive on earth from the sun. this is about 8 minutes. A radar on earth boucing a signal off the sun would take 16 minutes to bounce back; 8 minutes to get to the sun and 8 minmutes to get back.
Police Radar travels at the same speed but the distances are much smaller but bounce time is still 12 microsecond per mile. So if the bounce time is is 36 microseconds the car is 3 miles away. Using a little algebra the radar can take two hits and figure out how fast your car is moving.
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∙ 14y ago
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∙ 11y agoDoppler effect
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What another term for radar waves?
Another name for radar waves is radar systems or electromagnetic waves.
What waves that are used in radar?
Electromagnetic waves.
How are sonar and radar different?
Sonar navigation uses sound waves; radar navigation uses electromagnetic waves (usually radio eaves).
The energy produced by electromagnetic waves is?
chemical energy
Which electromagnetic waves from the sun produce a heating effect?
infra red
What another term for radar waves?
Another name for radar waves is radar systems or electromagnetic waves.
Are radar waves electromagnetic waves?
Yes.
What waves that are used in radar?
Electromagnetic waves.
When a police officer uses radar speed for control the officer is using what kind of electromagnetic waves?
Radar uses radio waves.
A method of sending energy waves from a satellite to an area of earth being observed is?
radar;radar means :the transfer of energy as electromagnetic waves.
How are sonar and radar different?
Sonar navigation uses sound waves; radar navigation uses electromagnetic waves (usually radio eaves).
What type of electromagnetic waves is used in radar?
Radar stands for RAdio Detection And Ranging. So ... radio.
What has the author Alvin Schaffer written?
Alvin Schaffer has written: 'The use of electromagnetic Walsh waves in radar' -- subject(s): Electromagnetic waves
When are no electromagnetic waves produce?
In a vacuum
Which travels faster radar or light?
Radar is accomplished by bouncing radio waves from the target.Radio waves and light are the same phenomenon ... both are electromagnetic waves,and their speeds are equal.
When a police officer uses radar for speed control the officer is using what kind of electromagnetic waves?
radio waves
When the police officer uses radar for speed control the officer is using what kind of electromagnetic waves?
radio waves
