The compound shaft shown consists of aluminum segment (1) and steel segment (2). Aluminum segment (1) is a tube with an outside diameter of D₁ = 3.95 in., a wall thickness of t₁ = 0.25 in., and a shear modulus of G₁ = 4,000 ksi. Steel segment (2) is a tube with an outside diameter of D₂ = 2.10 in., a wall thickness of t₂ = 0.125 in., and a shear modulus of G₂ = 12,000 ksi. The compound shaft is subjected to torques applied at B and C as shown. Determine the rotation angle of C with respect to the support at A. (1) 9 ft -0.0276 rad -0.0202 rad O -0.0320 rad O -0.0374 rad O -0.0261 rad 1,700 lb-ft B (2) 6 ft 650 lb-ft

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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.