lasers to find speed and gps to find location/distance
Laser speed guns use lasers by Doppler shift measurement.
A wind vane measure wind direction. It doesn't measure wind speed, it tells which direction the wind is coming from and which direction it is currently blowing.
As the speed of light is thought to be an absolute speed (it is not, but close enough) we use it and a time frame, usually a year, to describe how far things are away. The term is : Light Year ( the distance light will travel in a year ) roughly 6 trillion miles For instance the closest star is thought to be four light years away.
Anemometer is an instrument to measure the wind speed.
An anemometer is used to measure wind speed.
The speed of a vehicle
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Ask this again but in English please
An anemometer is used to measure wind speed. A Pitot Tube is used to infer speed in an aeroplane,. A speedometer in an ordinary car, and a microwave or laser radar in a Police car.
They bounce a spot of light off a (distant) object and measure the time it takes to bounce back. Knowing the speed of light, the distance is Time times Speed.
Laser speed guns use lasers by Doppler shift measurement.
There are a few different ways you could measure the speed of sound in water and air. You could record the amount of time it takes a sound to be heard from the source to the destination for example.
Laser tachometer are instruments used to measure the rotation speed of a shaft or disk, as in motor or other machine. They usually display the revolutions per minute (RPM) on a calibrated analogue dial or digital display.
Photo sensors and chronometers are used to check for the speed. The vehicle breaks the photo sensor beam, and the chronometers record the speeds.
Probable m/s is the most adequate unit.
A wind vane measure wind direction. It doesn't measure wind speed, it tells which direction the wind is coming from and which direction it is currently blowing.
Faster Speed