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a gas is contained in a vertical,frictionless piston cylinder device. the piston has a mass of 4kg and cross-sectional area of 35cm^2. A compressed spring above the piston exerts a force of 60N on the piston. if the atmospheric pressure is 95kPa, determine the pressure inside the cylinder.
A 7 kg cylinder is attached to a series of two springs in the attached illustration. If the cylinder is released from rest - when the springs are both un-stretched - determine the maximum stretch in each spring.
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
Using a centrifugal pump, and a flow rate of 60 gal/min, calculate the break hp of the pump using water with a density of 62.4lbm/ft3 and do the same for a nonviscous liquid having a density of 0.85g/cm3.
Why do you suppose that service jobs have lower productivity than manufacturing jobs? How can a company gain a competitive advantage by having higher productivity than its compettitors have?
determine the magitudes of the horizontal and vertical reactions of the chair on the man at the instant . At this instant he has a speed of 6 m/s, which is increasing at 0.5 m/s^2.
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.
Vertical plane due to the action of the external moment and determine the external moment or force.
Define your system to be the gas in the cylinder, and calculate the work transferred from the surroundings to the system from this expansion. Note that the pressure will change as the expansion takes place.
What is the acceleration of the aircraft (in m/s2)? How long does it take the aircraft to reach its take-off speed?
To determine the heat transfer characteristics of a cylinder under cross flow conditions when the cylinder is isolated.
At the end of the isothermalexpansion, the pressure is 600 kPa and the volume is 0.4 m3. Assuming the ideal gas model for air, determine the thermal efficiency.
The temperature of the water drops to 260 F as a result of heat transfer to the surroundings. Determine the final pressure in the tank?
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