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Derive the equation of motion of the mass m shown in Fig. 3.66 when the pressure in the cylinder fluctuates sinusoidally. The two springs with stiffnesses k1 are initially under a tension of T0. and the coefficient of friction between the mass and the contacting surfaces is µ.
determine the smaller of the two section moduli for the beam. (Recall that section modulus is equal to bending moment divided by maximum bending stress.) In which material does the maximum stress occur?
an open gas turbine is equipped with a regenerator. the compressor is 87nbspefficient with air entering the compressor
air is expanded in a polytropic process with n 1.5 from 2 mpa and 300 degrees celcius to 80 kpa in a piston-cylinder
a vortex tube is used to separate an ideal gas at 10 bar and 375 k such that half the gas is collected in a cool stream
Consider the microchannel chip cooling applica- tion of Problem 8.109 but now for a perfluorinated liquid with properties of cp = 1050 J/kg · K, k = 0.065 W/m · K, µ, = 0.0012 N · s/m2, and Pr = 15.
molesec of n2 is pressurized from 300 k and 10 bar to 100 bar. assume adiabatic. calculate the minimum power for this
Assuming that the modulus of elasticity E is equal to 10 ×106 psi and that the ends of the bar are pinned, calculate the maximum deflection d and the maximum bending moment Mmax.
The polynomial method is to be used to solve the equation. For the graphs, Mathcad or similar program is necessary to graph the solution.
water enters one end of a long coiled tube at 5000 kpa 220c at a steady rate of 2.20kgs. it is heated as it passes
For the process where q= 62.5 kj/kg and wkcs= 60 kj/kg determine the energy change if the system mass is 2 kg.
determine the breakeven resale price 10 years from now of an apartment house that can be bought today for 449000. its
determine the work done in lifting a 250-lb refrigerator 4 ft vertically into a van. alternatively the refrigerator
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