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A piston cylinder device contains 3kg of water vapor at 30 bar and 350ºC. it is cooled at constant volume until the temperature reaches 195ºC. Then it is compressed at constant temperature to 20bar. (a) Show the process on a T-V diagram. (b) Determine the quality (x). (c) Determine the pressure at state 2 and state 3.
Determine the forces in members DE,DF, and EF of the scissors truss shown. Also, state whether the members are in tension or compression. Note that the 400 lb force is directed along the line BF and the 800 lb force is parallel to line BF.
the thickness of a set of gaskets varies because of random manufacturing disturbances but the thickness values measured
estimate the rate in galhr that your car uses gasoline when it is being driven on an interstate highway. determine how
5 lbm of refrigerant 22 r-22 is contained in a piston cylinder device. the r-22 initially at a pressure of 30 psia and
a door 1 m wide and 1.5 m high is located in a plane vertical wall of a water tank. the door is hinged along the upper
the gap at c is initially 0.15mm before load p is applied. for p200kn the gap will close. determine the stress in ab
approximately how many pounds of downward pressure is placed on a piston in an internal combustion engine at the moment of ignition? I know this will vary some depending on the type fuel, the size of the combustion chamber and ect.
Consider just the vertical (y) response of the system when the beam is being stretched. Show that the spring constant, ka, is approximately 70.6 mN/m. What is the steady state amplitude of the vertical response? See Figure A below for an engine..
a tungsten wire 0.005mm in dia and 2 mm in length is placed horizontal in stagnant air. if we need to maintain the wire
Common aluminium foil for household use is nearly pure aluminium. A box of this product at a local supermarket is advertised as giving 69ft2 of material (in a roll 304 mm wide by 21.0 m long). If the foil is 0.3mil (7.62 μm) thick, calculate the num..
refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 35 degrees c at a rate of 0.018 kgs and
a propeller blade section begins to cavitate when its relative velocity with respect to undisturbed water is 32 m per
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