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A steel shaft transmits 30 kW of power at 10 Hz. Determine the smallest safe diameter of the shaft if the shear stress Tmax

A steel shaft transmits 30 kW of power at 10 Hz. Determine the smallest safe diameter of the shaft if the shear stress Tmax is not to exceed 50 MPa and the angle of twist 0 is limited to 5in a length of 4 m. Use G = 70 GPa.

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