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Carbide cutting tools are composites of very hard tungsten carbide particles in a cobalt matrix. The elastic moduli of tungsten carbide and cobalt are 102 × 106 and 30 × 106 psi, respectively. It was experimentally found that the elastic modulus of a composite containing 52 vol.% carbide was 60 × 106 psi. What value of the exponent n in Equation (21.26) would this measurement suggest? A trial and error solution is necessary to solve this. Note that n = 0, is a trivial solution.
the particle a is mounted on a light rod pivoted at o and therefore is constrained to move in a circular arc of radius
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heat is conducted along a circuit board that has a copper layer on one side. the circuit board is 15 cm long and 15 cm
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A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 350oC and velocity of 15 m/s. The exit is at 100 kPa, x = 1 and very low velocity. Find the specific work and the power produced.
ii. Derive a relationship between time t and the velocity V. iii. Derive a relationship between displacement D and the velocity V.
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Derive the equilibrium conditions for an isolated system consisting of two regions separated by a membrane and with three components A, B, and C. The membrane is rigid, heat conducting, and only permeable to component A.
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