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A piston-cylinder assembly contains a two-phase liquid-vapor mixture of H2O at 160 lbf/in^2 with a quality of 70%. The mixture is heated and expands at constant pressure until a final temperature of 480oF is reached. Determine the work for the process, in Btu per lb of H2O present.
a plate fin heat exchanger for truck is designed to cool high temperature and high pressure oil using high pressure
a particle is moving along a straight line and has an acceleration of kv2 ms2 where v is the velocity of the particle.
1. with reference to basic constructional features contrast the methods of compression employed by positive
A piston-cylinder device contains 0.8kg of steam at 300 degrees C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses.
Consider a car having a frontal are of 2.0m^2 with a drag coefficient of 0.35. The mass of the car is 1250kg and the rolling resistance is 1.0% of the weight of the car. At what speed does the aerodynamic drag first exceed the rolling resistance.
a tile-iron consists of a massive plate maintained at 150degc by an embedded electrical heater.nbspthe iron is placed
the roadster weighs 2750 lb its mass is evenly distributed between its front and rear wheels and it accelerates from 0
two brass rods used as compression members each of 6-ft effective length have the the same cross sections.theround rod
a circular coil having 19 turns and a radius of r 17.6cm carries a current of 3.80a. it is placed in a uniform
A radiator wall measuring 2 m by 3 m (WxH) is held a temperature of 125 °C. Straight aluminum fins (k = 175 W/mK) are to be mounted on the wall. The fins are 5 cm in length and 0.8 mm thick. The system is allowed to convectively transfer heat to ambi..
a double-acting duplex pump with 6.5 in liners 2.5 in rods and 18 in stokes was operated at 2000 psig and 20 cyclesmin
a fireworks shell is launched vertically from point a with speed sufficient to reach a maximum altitude of 500 ft. a
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