Physics
In a water lifting electric pump, we convert

Kinetic energy into Electrical energy
Electrical energy into Kinetic energy
Electrical energy into Potential energy
Kinetic energy into Potential energy

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Physics
RADAR is used for:

receiving a signals in a radio receiver.
locating geostationary satellites.
detecting and locating the position of objects such as Aeroplanes.
locating submerged submarines.

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