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The optical disk drive in your device can spin a disk at up to 10,000 rpm....

The optical disk drive in your device can spin a disk at up to 10,000 rpm. If a disk of mass 17 g and radius 12.0 cm is spun from rest to a speed of 7730 rpm over 0.0.550 seconds, what is the magnitude of the average torque (in Nm) on the disk while it is spun up?

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