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The diagram above shows three different fuids that have been added to a glass U-tube that is open to the air. The fuids are in equilibrium and do not mix. Let the fuid on the left have a density of 1000 kg m3 and the fuid on the bottom have a density of 1350 kg m3.
1. Calculate the pressure at the bottom of the fuid on the left.
2. Calculate the density of the unknown fluid on the right.
3. The original tube is now replaced by the one shown above. It is filled with the same volume of each fuid as in the original diagram. One possible outcome is shown above. Is this possible? Explain.
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