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1. (20 points) The cross section of an engine drive shaft is shown. The greatest torque expected to act on the shaft is 2000



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1. (20 points) The cross section of an engine drive shaft is shown. The greatest torque expected to act on the shaft is 2000 N-m. If the maximum shear stress should be less than 5 MPa, what is the minimum value possible for the outer radius Ro? Ro 0.7 Ro

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