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A solid steel shaft 4 m long is stressed to 70 MPa when twisted through 3. (a) Given that G = 83 GPa, find

A solid steel shaft 4 m long is stressed to 70 MPa when twisted through 3. (a) Given that G = 83 GPa, find the diameter of the shaft. (b) What power does this shaft transmit when running at 18 Hz?

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