A700 kg elevator starts from rest. it moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) what is the average power of the elevator motor during this period? w (b) how does this power compare with the motor power when the elevator moves at its cruising speed? pcruising = w
Answers: 1
Physics, 22.06.2019 10:20, studyowl9192
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
Physics, 22.06.2019 19:30, 27lcasselberry
Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match
Answers: 1
A700 kg elevator starts from rest. it moves upward for 4.50 s with constant acceleration until it re...
Mathematics, 21.01.2021 22:30
Mathematics, 21.01.2021 22:30