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Choose the damping coefficient of a spring-mass-damper system with mass of 150 kg and stiffness of 2000 N/m such that its response will die out after about 2 s, given a zero initial position and an initial velocity of 10 mm/s.
a battery of cylindrical hollow-fiber membranes is operated at steady state to concentrate a bacterial suspension from
The area under an engineering stress-strain curve up to fracture is the en- ergy/volume. The area under a true stress-strain curve up to fracture is also the energy/volume. If the specimen necks, these two areas are not equal.
For the two processes given below, determine the final temperature, pressure, specific volume, and the changes in internal energy, enthalpy, and entropy. Calculate the final temperature and change in specific internal energy as steel at 212 kPa and 5..
Calculate the ratio of axial to tangential strain when the pressure inside a long, thin-walled, closed-end cylinder is increased to the point where enough plastic flow has occurred so that elastic strains may be neglected.
A layer of water flows down an inclined fixed surface with the velocity profile shown in Fig. Determine the agnitude and direction of the shearing stress that the water exerts on the fixed surface for U = 3 m/s and h =0.1 m.
an ideal vapor compression refrigeration cycle with r-134a as the working fluid operates between the pressure limits of
a heat pump that operates on the ideal vapor compression cycle with refrigerant - 134a is used to heat a house. the
the 4-mm-diameter cable bc is made of a steel with e 200 gpa. knowing that the maximum stress in the cable must not
the 800-lb load is being hoisted at a constant speed using the motor m which has a weight of 90 lb. determine the
a thermoelectric generator consists of a series of semiconductor elements heated on one side and cooled on the other.
at a point on the free surface of an alloy steel e 30000 ksi and v . 3 machine part normal strains of 1000 uinin
Saturated isobutane vapor at 320 K is contained in a piston-cylinder assembly. It is expanded to 3 bar by a reversible isothermal process. At 320 K, the vapor pressure of isobutane is 6.243 bar. Using the truncated virial equation of state, i.e. with..
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