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Physics, 03.12.2019 01:18 cpcoolestkid4

Alift (elevator) is operated by an electric motor. it descends from the 10th floor to the 2nd floor at a constant speed. what is the main energy transformation during this journey?

#1
gravitational potential energy β†’ kinetic energy.

#2
electrical energy β†’ kinetic energy.

#3
kinetic energy β†’ thermal energy.

#4
electrical energy β†’ thermal energy.

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