- #1

ermia

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- Homework Statement
- I uploaded the problem. when I want to write the potential energy of the fluid in the initial and final state I don't find the right answer. I know the rest of the problem.

- Relevant Equations
- $$ U=\rho g h A h_{cm} $$

I wrote some potentials but they were wrong. I used the cm of all fluid parts and I used the radius which is $$ \sqrt S/ \pi $$ .