(a) What is the average useful power output of a person who does 6 x 106 J of useful work in 7 hr? P= W (b) Working at this rate, how long will it take this person to lift 2300 kg of bricks up a 2-m platform? Hint: Work done to lift his body can be omitted because it is not considered useful output here. t= S

(a) What is the average useful power output of a person who does 6 x 106 J of useful work in 7 hr? P= W (b) Working at this rate, how long will it take this person to lift 2300 kg of bricks up a 2-m platform? Hint: Work done to lift his body can be omitted because it is not considered useful output here. t= S

Name: can someone answer these for me please? Thank you! 1. (a) What is the
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Description: can someone answer these for me please? Thank you! 1. (a) What is the average useful power output of a person who does 6 x 106 J of useful work in 7 hr?P =W(b) Working at this rate, how long will it take this person to lift 2300 kg of bricks up a 2-m

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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(a) What is the average useful power output of a person who does 6.00106 J of useful work in 8.00 h? (b) Working at this rate, how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.)
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