Physics

Physics, 18.07.2019 15:00, Zykuko

The work done on an elevator that has a mass of 1000kg and lifted 4m in 10 seconds is how many joules.

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Physics, 18.07.2019 16:30, cmanglona

Which situation describes the highest rate of power? a. an engine does 100 joules of work in 3 seconds. b. an engine does 100 joules of work in 2 seconds. c. an engine does 50 joules of work in 2 seconds. d. an engine does 50 joules of work in 3 seconds

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Physics, 21.07.2019 21:10, sally8177

Two electric motors drive two elevators of equal mass in a three-story building 10 meters tall. each elevator has a mass of 1,000 kg. the second elevator takes 10 seconds to do this work. calculate the power output of the second motor.

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Which situation describes the highest rate of power? a. a machine does 200 joules of work in 10 seconds. b. a machine does 400 joules of work in 10 seconds. c. a machine does 200 joules of work in 5 seconds. d. a machine does 400 joules of work in 5 seconds.

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Physics, 19.11.2019 00:31, Freindofafreind

Two electric motors drive two elevators of equal mass in a three-story building 10 meters tall. each elevator has a mass of 1,000 kg. the first elevator can do this work in 5.0 seconds. calculate the power output of the first motor.

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