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    Fluid Mechanics - Find the viscosity of the oil

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    In a falling-ball viscometer, a steel ball 1.6mm in diameter is allowed to fall freely in a heavy fuel oil having a specific gravity of 0.94. Steel weighs 77kN/m^3. If the ball is observed to fall 250mm in 10.4s, find the viscosity of the oil.

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    d = 1.6 mm = 0.0016 m

    v = 250 mm / 10.4 s = 250 * 10^-3 m / 10.4 s = 0.024 m/s

    Mass density of ...

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