1. (a) What is the average useful power output of a person who does 7.00 x 106 J of useful work in 7.00 hr? Enter to 3 significant figures P= 378 W (b) Working at this rate, how long will it take this person to lift 1700 kg of bricks up a 1.5-m platform? Hint: Work done to lift his body can be omitted because it is not considered useful output here. Assume that all quantities are correct to 3 significant figures. Enter to 3 significant figures t = 2807 S

1. (a) What is the average useful power output of a person who does 7.00 x 106 J of useful work in 7.00 hr? Enter to 3 significant figures P= 378 W (b) Working at this rate, how long will it take this person to lift 1700 kg of bricks up a 1.5-m platform? Hint: Work done to lift his body can be omitted because it is not considered useful output here. Assume that all quantities are correct to 3 significant figures. Enter to 3 significant figures t = 2807 S

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Description: 1. (a) What is the average useful power output of a person who does 7.00 x 106 J of useful work in 7.00hr?Enter to 3 significant figuresP= 378Xt = 2807(b) Working at this rate, how long will it take this person to lift 1700 kg of bricks up a 1.5-m p

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 76P: Calculate the power output needed for a 950-kg car to climb a 2.00 slope at a constant 30.0 m/s...

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1. (a) What is the average useful power output of a person who does 7.00 x 106 J of useful work in 7.00
hr?
Enter to 3 significant figures
P= 378
X
t = 2807
(b) Working at this rate, how long will it take this person to lift 1700 kg of bricks up a 1.5-m platform?
Hint: Work done to lift his body can be omitted because it is not considered useful output
here. Assume that all quantities are correct to 3 significant figures.
Enter to 3 significant figures
W
!
No, that's not the correct answer.
S

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