List 2 ways that dopplar radar is used in technology

The doppler radar is used in technology in two ways;

·         Continuous Doppler radar – it has the capability of receiving signals in means to provide output in velocity from the target

·         It may be use as radar gun in which police use to detect speeding.

c. magnitude and direction

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me