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A uniform cylindrical turntable of radius 1.90 m and mass 28.2 kg rotates counterclockwise in a...

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Physics

A uniform cylindrical turntable of radius 1.90 m and mass 28.2kg rotates counterclockwise in a horizontal plane with an initialangular speed of 4Ï€ rad/s. The fixed turntable bearing isfrictionless. A lump of clay of mass 2.49 kg and negligible size isdropped onto the turntable from a small distance above it andimmediately sticks to the turntable at a point 1.80 m to the eastof the axis.

(a) Find the final angular speed of the clay and turntable.

Magnitude  rad/s
Direction---Select--- counterclockwise clockwise


(b) Is mechanical energy of the turntable-clay system conserved inthis process?
---Select--- no yes  
What, if any, is the change in internalenergy?

Your response differs from the correct answer by more than 100%.J

(c) Is momentum of the system conserved in this process?
---Select--- No yes  
What, if any, is the amount of impulse imparted by thebearing?
  kg · m/s

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