Question: 5 - 4 1 . The 2 0 - mm - diameter shaft on the motor is made of a material having an allowable shear

5-41. The 20-mm-diameter shaft on the motor is made of a material having an allowable shear stress of allow=80MPa. If the motor is operating at its maximum power of 6kW, determine the minimum allowable rotational speed of the shaft.
5 - 4 1 . The 2 0 - mm - diameter shaft on the

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