Physics, 20.11.2020 01:00 tchase0616
You're riding in an elevator as it is reaching the top floor of a building and then leaving the top floor to go down again. During this time:
a. Your apparent weight is greater than your weight.
b. Your apparent weight is less than your weight.
c. Your apparent weight is equal to your weight.
Answers: 2
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Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.
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Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
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