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An inventor claims to have developed a refrigeration unit that maintains a cold space at -10°C while operating in a room temperature where the temperature is 25°C, and which has a coefficient of performance of 8. Determine whether constructing such a refrigeration unit is possible, explain.
electric power is to be generated by installing a hydraulic turbine-generator at a site 130m below the free surface of
Explain any anomalies - differences from theory or what you thought should happen. Is a linear approximation sufficient to describe and predict the relationship between load and output voltage?
The tank air pressure above the water level is 300kPa(absolute) while the atmospheric pressure is 100kPA. Neglecting frictional effects, determine the initial discharge rate of water from the tank.(Density of water=1000kg/m^3)
Determine the peak runoff from 500 ft of pavement(32ft wide) that drains toward a gutter(for 10 years freq. storm), the pavement slope is .0005, n=.016 and c=.9
polymorphs are distinct types of crystals that have the same composition. for example iron changes from bcc to fcc upon
estimate the pressure on your hand when you hold it in the stream of air coming from the air hose at a filling station.
Draw the T-s diagram (hint: it would help to begin with a schematic of the cycle) and.
Determine the natural frequencies of the system-For the baseline system and find a design that changes the ?rst two natural frequencies more than any of the previous slight modi?cations.
a tank truck carries a cargo of liquid which fills 23 of the tank figure 3. the tank is open tonbspthe atmosphere. if
a 50 cm long 800 w electric resistance heating element with diameter .5 cm and surface temperature 120c is immersed in 60 kg of water temperature to 80c. also determine the convection heat transfer coefficients at the beginning and at the end of t..
10 kg of water in a piston-cylinder arrangement exists as saturated liquidvapor at 100 kpa with a quality of 50. it is
a 10 ft3 vessel contains steam at 200 psi and 500degf. a valve on top of the vessel is opened and steam is expelled to
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