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A solid, uniform disk of mass 1.00 kg and radius .250m rotates with initial angular velocity...

A solid, uniform disk of mass 1.00 kg and radius .250m rotates with initial angular velocity of +26.3 rads/s about a frictionless vertical spindle through the center of the disk. A flat rectangular steel bar of mass 0.850 kg, length 0.400m, and width 0.050 M is dropped onto the disk so that the spindle passes through the center of the bar and is perpendicular to the plane of the bar. Assuming that there are no external torques on the system compesed of the disk and bar, what will the final angular velocity of this system be?

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