The piston of a vertical piston-cylinder device containing gas has a mass of 60 kg and a cross-sectional area of 0.04 m2, as shown in Fig. 3–20. The local atmospheric pressure is 0.97 bar, and the gravitational acceleration is 9.81 m/s2. Determine the pressure inside the cylinder.

  

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Patm = 0.97 bar m = 60 kg A = 0.04 m2 P = ? Patm = 0.97 bar m = 60 kg A = 0.04 m2 P = ?