Question: A flat circular disk of radius 1. 0 mis rotated at an angular velocity of 0. 65 rad/sec over a fixed flat surface . An

A flat circular disk of radius 1. 0 mis rotated at an angular velocity of 0. 65 rad/sec over a fixed flat surface . An oil film separates the disk and the surface. If the viscosity of the oil is 16 times that of water (20°C) and the space between the disk and the fixed surface is 0.5 mm, what is the torque required to rotate the disk?

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