Practice1. What is the power output of a 60.0 kg student running at a constant velocity up a flight of stairs 4.50 m high in 7.00 sChoices378 W2.60 x 103 W200 W3.78 x 103 W2. A 2.5 horsepower (1 hp = 744 W) motor is used to power a hoist to lift a 1700 kg car 1.86 m above the garage floor.How much time does it take the hoist to lift the car? time = ? seconds***round to the nearest full second***

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Description: Practice1. What is the power output of a 60.0 kg student running at a constant velocity up a flight of stairs 4.50 m high in 7.00 sChoices378 W2.60 x 103 W200 W3.78 x 103 W2. A 2.5 horsepower (1 hp = 744 W) motor is used to power a hoist to lift a 1

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College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 36PE: (a) What is the average useful power output of a person who does 6.00106 J of useful work in 8.00 h?...

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1. What is the power output of a 60.0 kg student running at a constant velocity up a flight of stairs 4.50 m high in 7.00 s

Choices

378 W
2.60 x 10³ W
200 W
3.78 x 10³ W

2. A 2.5 horsepower (1 hp = 744 W) motor is used to power a hoist to lift a 1700 kg car 1.86 m above the garage floor.

How much time does it take the hoist to lift the car?

time = ? seconds***round to the nearest full second***

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