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1.5 kg of air in a piston/cylinder assembly has initial temperature and pressure 27oC and 1.5 bar respectively. Then the system is heated in constant volume to 727oC (state 1-2) and then heated again constant pressure to 1227oC (state 2-3). Determine the amount of heat transfer during the whole process. (Use constant specific heat, cv=0.825 kJ/kg.K)
A 12-m pole supports a horizontal cable CD and is held by a ball and socket at A and two cables BE and BF. Knowing that the tension in cable CD is kN and assuming that CD is parallel to the x axis (phi = 0), determine the tension in cable BE and BF a..
steam enters a turbine at 120 bars and 440 0c and expands to 1 bar. at the exit entropy is 0.650 kjkg. k greater than
a pipe with closed ends has an outer diameter of 80 mm and a wall thickness of 3.0 mm. it is subjected to an internal
an accelerometer was used to measure the vibrations of machinery. the sensor output was acquired during an experiment
a pitot-static probe connected to a water manometer is used to measure the velocity of air. if the de?ection
Consider a pump that discharges a liquid into a cylindrical drum at the rate of 0.064 m 3 /s. The cylindrical drum is 3.00 m in diameter and 8.20 m in depth and it can hold 40,000 kg of the liquid. Find the specific volume, density of the liquid, and..
refrigerant 22 is used in the evaporator pipe of a commercial refrigeration unit. at steady state it flows at a rate of
two kg of air is contained in a piston-cylinder assembly. the initial volume is 0.01 m3 andpressure is 10 bar. the air
The roof is supported by cables. If the cables exert FAB = 100N and FAC = 120N on the wall hook at A, determine the magnitude of the resultant force acting at A.
a cylinder made of astm a242 steel is 50cm in diameter and 250mm long and has a wall thickness of 24mm. a round bar of
a solid circular cylinder of radius r rotates at angular veolicity omega in a viscous incompressible fluid that is at
a sketch three-dimensional views of the unit cell of a b.c.c. crystal showing a 100 plane a 110 plane a 111 plane and a
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