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One of two hollow drive shafts of a cruise ship is 185 ft long, and its outer and inner diameters are 16 in. and

 


One of two hollow drive shafts of a cruise ship is 185 ft long, and its outer and inner diameters are 16 in. and 8 in., respectively. The shaft is made of a steel for which the allowable shear stress is 8500 psi and G = 11.2 106 psi. Knowing that the maximum speed of rotation of the shaft is 265 rpm, determine: (a) the maximum power that can be transmitted by the one shaft to its propeller, (b) the corresponding angle of twist of the shaft. P = E+3 hp =

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