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A 14.0-kg solid homogeneous disk of radius 0.600 m is rotating with an initial angular...

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Physics

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A 14.0-kg solid homogeneous disk of radius 0.600 m is rotating with an initial angular speed of 50.0 rad/s about africtionless horizontal shaft. A 6.00-kg solid homogeneous disk of radius 0.400 m is initially at rest on the sameshaft. The disks are pushed into contact, as shown. Because of surface friction, the two disks eventually attain a finalcommon angular speed 404.(a) Find the final common angular speed wy of the system.(b) In the collision of the two disks, kinetic energy is not conserved because nonconservative (frictional) internalforces act during the contact. How much energy was lost to friction in the collision?

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