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Q1. A uniform solid disk with a mass of 23.8 kg and a radius of 0.712 m is free to rotate about a frictionless axle. Forces of 92.0 and 124 N are applied to the disk. Taking the clockwise direction to be the negative direction, what is (a) net torque produced by the two forces and (b) the angular acceleration of the disk?

Q2. IP Water flows through a horizontal tube of diameter 3.0 {rm cm} that is joined to a second horizontal tube of diameter 1.8 {rm cm}. The pressure difference between the tubes is 7.2 {rm kPa}.

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