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A piston having a cross sectional area of 0.07m is located in a cylinder containing water as shown in the Figure 1. An open U-tube

A piston having a cross sectional area of 0.07m is located in a cylinder containing water as shown in the Figure 1. An open U-tube manometer is connected to the cylinder as shown. For h1=60mm and h=100 mm, what is the value of the applied force, P, acting on the piston? The weight of the piston is negligible.

 

P Water Piston Mercury h

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