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anonymous
 5 years ago
a circular swimming pool has diameter of 24ft, sides are 5 ft high, and the depth of the water is 4 ft. How much work is required to pump all of the water out over the side? water weighs 62.5 lb per cubic foot
anonymous
 5 years ago
a circular swimming pool has diameter of 24ft, sides are 5 ft high, and the depth of the water is 4 ft. How much work is required to pump all of the water out over the side? water weighs 62.5 lb per cubic foot

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0..... ρ∙g given as 62.5 lb/ft³ ..... A = πr²

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so we are doing Force* distance = work. we are going to move cross sectional slabs of water with radius 12, pi*12^2, each slab has a different height to cover. for example the slab on the bottom has to cover 4 feet and then another foot. this is the x part. and all the slabs need to cover one foot so x + 1

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the 1 foot extra on top

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so 62.5 * pi *12^2 integral ( x+1) from 0 to 4 is your work

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0whats important is that the force is given as pounds. dont worry about the pg part. im not so sure about that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well g is gravitational constant, and weight is mass * g , and you have density in there as well. but it all works out

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes just trying to make sense of it all. im still not understanding the x+1 since the bottom has to clear 5 ft not 1 ft

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well it clears 4 feet, then +1 foot for the top . the next slab say has to clear 3 feet then +1 foot for top, so on and so forth. the toppest slab has to clear just +1 foot. but each slab has that extra +1 foot to clear

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ah ok i see, thank you for clarifying
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