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An 8.20 cm-diameter, 390g solid sphere is released from rest at the top of a 2.00m...

An 8.20 cm-diameter, 390g solid sphere is released from rest at the top of a 2.00m long, 19.0 degree incline. It rolls, without slipping, to the bottom.

1) What is the sphere's angular velocity at the bottom of the incline?

2) What fraction of its kinetic energy is rotational?

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