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Question: 2 2 mar a hollow shaft with outside diameter of...

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[2]. (2 mar㎏ A hollow shaft with outside diameter of 4.5 in and wall thickness of ¼ in transmits 275 hp at 390 rpm. Calculate, i) the maximum shear stress,ii) the shear stress at the inner diameter, and iii) the angular deflection of the shaft in a length of 20 ft. The shaft material has a shear modulus of 1 1 .5 × 10° psi.
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