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    Physics: Calculate gauge pressure; tension in the cable

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    A storage tank of negligable mass and 30 m high is filled with gasoline.

    a. calculate the gauge pressure and absolute pressure at the bottom of the tank.

    b. the force that acts on a square access hatch at the bottom of the tank that measures 0.5 x 0.5 m. c. given that the tank is shaped like a right circular cylinder with height of 30 m and base radius of 10 m. the tank is attached to a steel cable of negligable mass and immersed in water. calculate the tension (force) in the cable before and after it is immersed in water.

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    https://brainmass.com/physics/classical-mechanics/physics-calculate-gauge-pressure-tension-cable-443000

    Solution Preview

    a. Guage pressue p= d*g*h

    d = density of gasoline = 720 kg/m^3
    g = gravitational acceleration = 9.8 m/s^2
    h = 30 m

    Therefore,
    p = 30*720*9.8 = 211680.0 Pa == 2.117*10^5 Pa --Answer

    Absolute pressure,
    P = Atmospheric pressure (Po) + Gauge pressure (p)
    Po = 1.013*10^5 ...

    Solution Summary

    The expert calculates the gauge pressure, tension in the cable.

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