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A steel bicycle wheel without the rubber tire is rotating freely with angular speed of 18.00...

A steel bicycle wheel without the rubber tire is rotating freely with angular speed of 18.00 rad/s. The temperature of the wheel changes from -100.0 to 300.0 º C. No net external torque acts on the wheel and the mass of the spokes is negligible. Does the speed increase or decrease as the wheel heats up? Why? What is the final angular speed

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