A conical body turns in a container, as shown, at constant speed 11 rad/s. A uniform 0.01-in film of oil with viscosity 3.125 x 10^-7 Ib .s/ in^2 separate the cone from the container. What torque is required to maintain this motion, if the cone has a 2-in radius at its base and is 4 tall?
(a)
(b)
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