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Exerting a force of 94 N on the circular piston of a syringe causes a pressure increase in the barrel of 1.3 atm. What is the diameter of the piston?

  • Physics - ,

    P = 1.3 atm = 1.3*10^5 N/m^2

    P = Force/Area = 94 N/A

    Solve for the area A, and use that to get the diameter.

    A = 94 N/(1.3*10^5 N/m^2)
    = 7.23*10^-4 m^2
    = 7.23 cm^2

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