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The circular blade on a radial arm saw is turning at 255 rad/s at the instant the motor is turned off. In 23.0 s the speed of the blade is reduced to...

The circular blade on a radial arm saw is turning at 255 rad/s at the instant the motor is turned off. In 23.0 s the speed of the blade is reduced to 90 rad/s. Assume the blade to be a uniform solid disk of radius 0.130 m and mass 0.400 kg. Find the net torque applied to the blade.

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