77 (b). Problem 17.23 (RHK) Two identical cylindrical vessels with their bases at the
same level each contain a liquid of density
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Solution: Click For PDF Version Problem has been described through the diagram. In the
initial situation liquid in the left vessel is filled to height
Potential energy of a liquid of density
Using this result we find that the potential energy of the system in the initial situation is Potential energy of the system in the final situation is Therefore, the work done by gravity in equalising the levels is
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