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The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?