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Are you talking about the displacment needed to lift 3000 pounds in water? The total displacment would need to equal the weight of the object AND the contianment vessel AND the entrapped air. Water weighs about 8 (fuel is 6) pounds per gallon. So you'd have to divide the total weight of all objects by 8 pounds to find the displacment. Recognize that you can also count the displacment of the object being lifted as part of the total displacment, so if the 3000 pound object displaces 100 gallons of water, that reduces the total additional displacent by 100 gallons.

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โˆ™ 2010-02-10 00:07:02
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Q: What is the formula to find displacement needed to lift an object weighing for example 3000 pounds?
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