P15_015 - h − h 2 . The work done by the force of gravity...

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15. When the levels are the same the height of the liquid is h =( h 1 + h 2 ) / 2, where h 1 and h 2 are the original heights. Suppose h 1 is greater than h 2 . The Fnal situation can then be achieved by taking liquid with volume A ( h 1 h )andmass ρA ( h 1 h ), in the Frst vessel, and lowering it a distance
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Unformatted text preview: h − h 2 . The work done by the force of gravity is W = ρA ( h 1 − h ) g ( h − h 2 ). We substitute h = ( h 1 + h 2 ) / 2 to obtain W = 1 4 ρgA ( h 1 − h 2 ) 2 ....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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