How to Find Pressure at Various Points in a Liquid-Filled Tank with a Tube?

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Homework Statement


A tank is filled to the depth h1 with a liquid with mass density p Over the liquid surface is an atmospheric pressure po. From the bottom of the tank there`s a tube with cross-sectional area of ​​S. Tube expands to double cross-sectional area 2S while bending up to the height h4. Out of the pipe the fluid flows with velocity v.

Find the pressure in 1, 2, 3 and 4


Please help on getting started?
 
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Use Bernoulli's equation and continuity equation.
 

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