Physics, 08.11.2019 02:31 triciajfive
Find the useful power output (in w) of an elevator motor that lifts a 2600 kg load a height of 30.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. note that the total mass of the counterbalanced system is 10,000 kg—so that only 2600 kg is raised in height, but the full 10,000 kg is accelerated. what does it cost (in cents), if electricity is $0.0900 per kw · h?
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Physics, 22.06.2019 08:00
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Physics, 22.06.2019 14:30
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
Find the useful power output (in w) of an elevator motor that lifts a 2600 kg load a height of 30.0...
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