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A instrument weighing 40lbf is being shipped in a container with foam packaging which has effective vertical stiffness k=100 lbf/in and provides an effective damping ratio of 0.05. If the container and its contents hit the ground with a veritcal speed v =150 in/sec - deterimine the maximum total force exerted on the instrument by the packaging.
Air at the rate of 18 kg/s is drawn into the compressor of a jet engine at 55 kPa and -23oC and is compressed reversibly and adiabatically to 276 kPa. Determine the required power input to the compressor expressed in horsepower.
In a tubular low pressure chemical vapor deposition (LPCVD) reactor, gas is introduced at one end at a rate of 75 torr-L/min. At the other end is a vacuum pump of a speed Sp. If the reactor must operate at 1 torr, what value of Sp is required?
consider a piston-cylinder system containing 0.1 kg of water. initially the volume of the system is 0.0125m3 while the
a rigid tank is divided into two equal parts same volume by a partition. initially one side of the tank is filled
hot air is contained in a vertical frictionless piston-cylinder device.the piston has a mass of 4 kg and a
calculate the overall efficiency the heat rate mw and the total fuel rate kgs of a combined-cycle power plant 1 if no
a strain gauge that has a nominal resistance of 350 ohms and a gauge factor of 1.8 is mounted in an equal-arm bridge
consider the flow of air over a vertical flat plate at a low velocity u1 in ambient pressure p1. the plate surface
a steam power plant operates on an ideal rankine cycle with boiler pressure of 100 bar no pressure drop across the
consider a space ship in a stationary orbit around a planet. the potential energy of the ship is u-kmr where kgm is
when tomatoes are broken or crushed for processing into liquid products such as juice or sauce they must be heated
a car engine produces 136 hp on the output shaft with a thermal efficiency of 30. the fuel it burns gives 35000 kjkg as
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