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At a certain position in a piping system, a fluid with a specific gravity of 1.50 passes through an 8-cm diameter pipe with a velocity of 1.2 m/s. At some point downstream the elevation of the pipe has increased by 15 m and the pipe size has been reduced to 5-cm diameter. The temperature of the fluid remains constant at 30 degrees Celsius during this process. A heat loss of 25 N-m/kg occurs in this process however. Determine the change in pressure between these two locations.
Hot combustion gases of a furnace are separated from the ambient air and its surroundings, which are at 25 C, by a brick wall that is 0.15m thick. The brick has a thermal conductivity of 1.2 W/mK and a surface emissivity of 0.8.
a 30-kg aluminum block initially at 140 c is brought into contact with a 40-kg block of iron at 60 c in an insulated
a 15-ft3 steel container that has a mass of 75 lbm when empty is filled with liquid water. initially both the steel
a four-cylinder four-stroke 1.8-liter modem highspeed compression-ignition engine operates on the ideal dual cycle with
The velocity profile for a film of liquid flowing down a vertical wall is given by. Where L is the thickness of the film, u is the downward velocity, xis the distance perpendicular to the wall and are the liquid density and viscosity. Sketch the velo..
a hydraulic jump at the base of a spillway of a dam is such that the depths upstream and downstream of the jump are .90
a dredger is pulling sand from the bottom of a harbor and loading it onto a barge. the sand sg 2.6 leaves the dredger
the allowable shearing stress is 15ksi in a steel rod ab and 8ksi in a brass rod bc. knowing that a torque of magnitude
sixteen kg of air and two kg of helium gas are sealed in a rigid and insulated internal-piston-cylinder device.
a car with a mass of 1570 kg is supported by four springs each with a spring constant of 25 nmm. in traveling over an
A process with Gp= 2/(2s+1) and Gd=1/(2s+1) experiences a disturbance step change of magnitude 5. The SP remains constant. If a P-controller alone with Kc=1 is used and Ga=Gs=1, then what is the output variable, delta Y(t) versus time?
the length of a cast iron pipe is to be 4200 ft. the head causing flow is to be 12.6 ft. after the pipe has been in
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