Physics, 03.12.2019 02:31 kookycookiefanx
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 → kinetic energy.
#2
electrical energy → kinetic energy.
#3
kinetic energy → thermal energy.
#4
electrical energy → thermal energy.
Answers: 2
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Alift (elevator) is operated by an electric motor. it descends from the 10th floor to the 2nd floor...
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