anonymous
  • anonymous
An open tank has the shape of a right circular cone (see figure). The tank is 8 feet across the top and 6 feet high. How much work is done in emptying the tank by pumping the water over the top edge? (The weight-density of water is 62.4 pounds per cubic foot.)
Calculus1
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
What do you think the answer is?
anonymous
  • anonymous
i have no idea how to go about it
anonymous
  • anonymous
do i start by multiplying 8 x 6 x 6.4?

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anonymous
  • anonymous
Which of these does the cone look like?|dw:1447296220850:dw|
anonymous
  • anonymous
1
anonymous
  • anonymous
It's late here and I've got early lectures so I can't type up your answer until tomorrow, but here's an example which might help before I can reply: http://math.stackexchange.com/questions/462532/work-to-pump-water-from-a-cylindrical-tank
anonymous
  • anonymous
What you said before isn't right because the width depends on the height. We know Work Done =Density * Area of disc * Height of disc * Distance We have density and distance. The rest we can find from integrating.
anonymous
  • anonymous
okay, ill see if i can get anywhere & let you know! thank you!

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