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A mixing chamber steadily mixes a hot water stream at 80°C and 0.5kg/s rate with a cold water stream at 20°C. If the leaving mixture is at 42°C and mixing happens at 250kPa, determine the mass flow rate of the cold water stream.
a nozzle with inlet area of 800 cm2 and inlet steam velocity is 10ms. the steam pressure is 800kpa and temperature is
using the classical and relativistic expressions for kinetic energy calculate the range of velocities for a particle of
a 10-kg block is attached to spring a and connected to spring b bycord and pulley. the block is held in the position
a heat pump with a cop of 3.0 is used to heat air contained in a 1205.4m3 of well-insulated rigid tank. initially the
a system with an initial volume of 2 m is filled with water at 3 mpa 400 deg c.it is now cooled at constant volume to
a system executes a power cycle while receiving 1050 kj by heat transfer at a temperature of 525 k and discharging 700
a 0.06m 3 rigid tank initially contains water at 1.5 mpa with a quality of 20. the tank is heated and a pressure
steam enters one inlet of an adiabatic mixing chamber at 1.4mpa and 300 c. at the second inlet steam enters at 1.4mpa
an initially empty bottle is filled with water from a line at 0.8 mpa 350 deg c. assuming no heat transfer and that the
2 kg of saturated water vapor at 600 kpa are contained in a piston-cylinder device. the water expands adiabatically
With reference to basic constructional features, contrast the methods of compression employed by positive displacement and dynamic air compressors.
it is desired to put oil hole through a part subjected to a stress field given by sigma xx 15 ksi sigma yy -15 ksi
coming out of a factory chimney are the following gases co2 so2 o2 n2 h2o with volume percentage to be 13.5 0.3 5.2 76
consider a spark ignition combustion engine with two possible configurartion for turbocharging. configuration a is
steam enters an adiabatic turbine at 800 psia and 900f and leaves at a pressure of 40 psia. determine the amount of
what equal monthly invesmet is required over a 50 year period to achieve a balance of 2600000 in an investment account
Determine the bolt stiffness, the tube stiffness, and the joint constant C.
a sample of silty clay has a volume of 14.88cm3 a total mass of 28.81 g a dry mass of 24.83 g and a specific gravity of
differentiate between macroscopic and microscopic approaches. which approach is used in the study of engineering
a smoke stream from a smoke generating tube is often used as a simple method of flow visualization in wind tunnels.
a fan drawing electricity at a rate of 1.5 kw is located within a well insulated 60 cubic meter rigid enclosure filled
What is the temperature 7 cm from the base if the rod is made of a) pure zinc b) lead c) pure gold. Which will be the hottest at this point?
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