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A hot-water stream at 80 degrees C enters a mixing chamber with a mass flow rate of 0.5 kg/s where it is mixed with a stream of cold water at 20 degrees C. If it is desired that the mixture leave the chamber at 42 degrees C, determine the mass flow rate of the cold-water stream. Assume all the streams are at a pressure of 250kpa.
air enters the compressor of a regenerative gas-turbine engine at 300k and 100 kpa where it is compressed to 800 kpa
a 30 g bullet is fired with a horizontal velocity of 450 ms through 3-kg block b and becomes embedded in carrier c
what will be the final temperature in the tank? how much work will be accomplished over the course of the entire process?
an air conditioner operating at steady state maintains a dwelling at 20 degrees celsius on a day when the outside
write a computer program that plots the contour lines of sigma1 sigma2 on a 2d rectangular beam. sigma represents the
write a program that will find the intersection point of the following functions in the interval 0.1ltxlt1.0y1x x2
a piston cylinder device initially contains steam at 3.5 mpa superheated by 5 c. steam loses heat to the surrounding
the 2 Mg car increases its speed uniformly from rest to 25 m/s in 30s up the inclined road. determine the maximum power that must be supplied by the engine, which operates with an efficiency of 0.8. also, find the average power supplied by the eng..
a truck traveling at vo 60 mph when the driver applies the brakes to come to stop the deceleration of the truck is
a for pt at 20 c calculate how many unit cells there are per cubic meter.bhow many total interstitial sites are there
an equiangular strain gage rosette is mounted on a free and unloaded surface of a part made of steel. when loaded the
a vapor initially at 50 psia and 100 f state 1 is contained within a piston- cylinder device. the refrigerant is cooled
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