1 answer

The piston (Figure 2) has fluid on both sides. The gage pressure below the piston P1...

Question:

K- D Р

The piston (Figure 2) has fluid on both sides. The gage pressure below the piston P1 = 25 kPa and the absolute pressure above the piston P2 = 80 kPa . What force F must be applied to the piston to keep it stationary? The diameter D = 10 cm . Neglect the magnitude of the force due to Patm acting on the rod relative to the magnitude of the force due to P2 acting on the piston.

Express your answer in N to three significant figures.

F= N

K- D Р

Answers

rod Given: D pt Piston. P, = 25 kPa ( guage pressure) P2= 80 kPa (Absolute pressure) Do 10cm a 100 mm solution: Absolute presP = 1.56325 × 05 Po required to force on rod to keep piston stationary = P = 1.56325x103 A aq (100)? F = 19.914 N

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