The platter of a modern hard disk drive spins at 720x103, Physics

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The platter of a modern hard disk drive spins at 720x103

The platter of a modern hard disk drive spins at 7.20x10³ rpm (revolutions per minute).

(a) How much time, in seconds, does it take for the disk to make a complete revolution?

(b) Starting from rest, suppose the disk reaches full speed in 5.00 seconds. What is the average angular acceleration of the disk in radians per second?

(c) Assuming constant angular acceleration, how many revolutions has the hard disk turned while spinning up to its final angular velocity?

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Physics: The platter of a modern hard disk drive spins at 720x103

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Physics: The platter of a modern hard disk drive spins at 720x103

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