Question: In a falling-ball viscometer, a steel ball with a diameter of 0.063 in is allowed to fall freely in a heavy fuel oil having a

In a falling-ball viscometer, a steel ball with a diameter of 0.063 in is allowed to fall freely in a heavy fuel oil having a specific gravity of 0.94. Steel weighs 0.283 lb/in³. If the ball is observed to fall 10.0 in in 10.4 s, calculate the dynamic viscosity of the oil in lb∙s² /ft.

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