Question: Using a maximum allowable shear stress of 70 MPa, find the shaft diameter needed to transmit 40 kW when (a) The shaft speed is 2500

Using a maximum allowable shear stress of 70 MPa, find the shaft diameter needed to transmit 40 kW when
(a) The shaft speed is 2500 rev/min.
(b) The shaft speed is 250 rev/min.

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