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A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.30 x 104 rad/s to an angular speed of
A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.30 x 104 rad/s to an angular speed of 5.00 x 104 rad/s. In the process, the bit turns through 3.06 X 104 rad. Assuming a constant angular acceleration, how long would it take the bit to reach its maximum speed of 7.72 x 104 rad/s, starting from rest? Number l Units V
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