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3) A solid, uniform, horizontal disk with a diameter of 2.0 m and a mass of 4.0 kg freely rotates at 36 rpm about a
3) A solid, uniform, horizontal disk with a diameter of 2.0 m and a mass of 4.0 kg freely rotates at 36 rpm about a vertical axis through its center. A small OED-kg stone is sudderdy dropped onto the disk and sticks to the disk at a distance of 80 cm from the axis of rotation. The figure shows before and after views. (a) Before the stone fell, what was the moment of inertia of the disk about its central axis? (b) After the stone stuck, what was the moment of inertia of the systecrn about the same axis? (c) 'What is the angular velocitv of the disk {in rpm) after the stone fell onto the disk? cl, i an Ct: at
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