A torque of 106 lb-ft is applied to the cross-section shown. The thickness is assumed to be 0.005 ft.   Calculate the smallest dimension “d” that can be used in cases ( a ) and ( b ) so that the allowable shearing stress is 760 psi

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.