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The shaft of the flywheel shown in Figure is supported on bearings. A light cord is wound around the shaft from which is hung a 2 kg mass. When allowed to fall freely the mass accelerates uniformly through a distance of 2 m in 3 s. The friction couple in the bearings is estimated to be 0.35 Nm. Calculate the moment of inertia and radius of gyration of the assembly.
a closed system of mass 6lbm undergoes a process in which there is a heat transfer of 245 ft-lbf from the system to
an adiabatic gas turbine using helium has inlet conditions 5 mpa and 500degc and outlet conditions of 50 kpa and
How does the thermal efficiency of an ideal cycle, in general, compare to that of a Carnot cycle operating between the same temperature limits?
Select a suitable belt and, ignoring the elongation at fitting but using the guide mass/unit length, calculate the power transmitted if the maximum permissible tension is 1kN and the coefficient of friction is 0.25 if the motor rotates at 1450rpm
Air enters a compressor at 105 kPa and 300 K with a volumetric flow rate of 12 m3 /min and exits at 1200 kPa and 400 K. Heat transfer occurs at a rate of 2 kW from the compressor to its surroundings. Assuming ideal-gas behaviour for air, steady flow,..
Air at 40C flows over a 2m long flat plate with a free stream velocity of 7 m/s. Assume the width of the plate (into the paper) is 0.5m. If the plate is at constant temperature of 100C,
a rigid container is separated into 2 compartments by a very thin solid membrane. one side initially holds 2 m3 of air
Calculate 01 the force ratio and movement ratio of each jack 00 the pressure within the hydraulic fluid - Describe the operation of a device which uses hydraulic pressure.
Assume that the cube floats in the attitude shown, and calculate the height h of the block above the surface of the oil. The specific weights of oil, salt water, and wood are 56, 64, and 50 lb /ft3, respectively.
How to estimate polygon point 1? Hw6 have used shmin = (sv - pp)/3.1 + pp. Where sv = 1.1 and pp = 0.5.
a scuba divers 2 ft3 air tank is to be filled with air from a compressed air line at 120 psia and 100 degree f.
heated air at 1 atm and 100 degrees f is to be transported in a 400 ft long circular plasitc duct at a rate of 12ft3s.
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