Physics, 16.02.2021 21:20 kaylaamberd
some devices use electromagnetic waves to find the location and speed of an object. in these devices the waves are emitted and then reflected off of the object and returned back towards the device. By knowing the speed of the wave and the time it takes the wave to return to the device, the distance that the wave traveled can be calculated. which wave of wave would be the safest to use in this type of devices
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some devices use electromagnetic waves to find the location and speed of an object. in these devices...
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