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A 4-ft-long, 1-in.-diameter shaft rotates inside an equally long cylinder that is 1.02 in. in diameter. Calculate the torque required to rotate the inner shaft at 2000 rpm if SAE-30 oil at 70°F fills the gap. Also, calculate the horsepower required. Assume concentric cylinders.
Using standard transformations between Cartesian and Cylindrical coordinate systems
a well-insulated rigid tank contains 5 kg of a saturated liquid-vapour mixture of water at
a gas contained in a piston cylinder assembly undergoes a process from state 1 to state 2 defined by the following
steam at 300 degc travels through a pipe covered with two layers of insulation. the first layer of insulation is 3 cm
a spring-mass is excited by a force f0sinomegat. at resonance the amplitude is measured to be 0.58 cm. at 0.80 resonant
determine the values of Q that minimizes unit sales cost UC = TC/Q; and compute the annual profit earned by the plant at this quantity.
Ammonia at 10ºC and mass 10 kg is in a piston cylinder with an initial volume of 1 m3. The piston initially resting on the stops has a mass such that a pressure of 900 kPa will float it. Now the ammonia is slowly heated to 50ºC. Find the final pressu..
a sphere of naphthalene having a radius of 2mm is suspended in a large volume of shell air at 318 k and 1 atm. the
A steam power plant operates on the ideal reheat Rankine cycle. Steam enters the high pressure turbine at 6 MPa and 4000C and leaves at 2 MPa. Steam is then reheated at constant pressure to 4000C before it expands to 20 kPa in the low pressure turbin..
Identify the truss member which supports the largest force, tension or compression and calculate this force.
a charge of -8.1 microc is traveling at a speed of 8.7 106 ms in a region of space where there is a magnetic field. the
A cylinder fitted with a frictionless piston contains water at 300 kPa and 200 degrees C, at which point the volume is 0.2 m^3. The piston is now moved slowly compressing the water to a pressure of 700 kPa. During this process PV^(0.9) = constant.
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