A(n) 636 kg elevator starts from rest. It moves upward for 4.5 s with a constant acceleration until it reaches its cruising speed of 2.05 m/s. The acceleration of gravity is 9.8 m/s 2 . Find the average power delivered by the elevator motor during this period. Answer in units of kW.
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An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?
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Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?
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Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?
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A(n) 636 kg elevator starts from rest. It moves upward for 4.5 s with a constant acceleration until...
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