Physics, 21.04.2020 16:34 Teedollasign
An electric saw uses a circular spinning blade to slice through wood. When you start the saw, the motor needs 2 seconds of constant angular acceleration to bring the blade to its full angular velocity. If you change the blade so that the rotating portion of the saw now has three times its original rotational mass, how long will the motor need to bring the blade to its full angular velocity
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An electric saw uses a circular spinning blade to slice through wood. When you start the saw, the mo...
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