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3 kg of refrigerant 22 undergoes a process for which the pressure-specific volume relation is pv^-0.8 = constant. The initial state of the refrigerant is 12 bar and 60 degrees C. The final pressure is 8 bar. Kinetic and potential energy effects are negligible. Determine the work, in kJ, for the process.
a 9 meter diameter balloon filled with helium carries a 100 kg person.the force that will push the balloon up is f p
air flows through a nozzle at high velocities such that compressible flow effects are important. the air exits the
draw a free body diagram for each of the two situations. use the "radial" Newton's law to find the tension in the string at each of these situations.
Consider a piston-cylinder system with an initial volume of 0.04 m3 at 200 kPa. Calculate the work being carried out to increase the volume to 0.1 m3 for each of the following processes
both a gage and a manometer are attached to a gas tank to measure its pressure. if the reading on the pressure gage is
a solution containing bacteria at a concetration of .001gl was fed to a semibatch reactor. the nutrient was in excess.
determine the required volume of the cuts and fills for a new road using the
Fluid/Dam Pressure, Compare the pressure force exerted on the face of two dams that hold a fresh water of 1000 Kg/m^3 density and a salty water of 1030 Kg/m^3
car a is speeding in the positive x direction and is about to run through a red light and collide with car b heading
for a vertical cylinder with an electric heater 2500watt at the basean inletlower part of cylinder with cold water at
using a 3 flute solid carbide 20mm diameter slot drill. with feed rate of 0.175mmtoothrev at a depth of cut of 12mm and
a thermometer has a time constant of 10s and behaves as a first-order system. it is initially at a temperature of
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