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A uniform disc having a mass of 8 kg and a radius of gyration of 150 mm is mounted on one end of a horizontal arm of 200 mm length. The other end of the arm can rotate freely in a universal bearing. The disc is given a clockwise spin of 250 rpm as seen from the disc end of the arm. Determine the motion of the disc if the arm remains horizontal.
one kilogram of carbon dioxide is compressed from 1 mpa and 200 degrees celsius to 3 mpa in a piston cylinder devise
A new vehicle propulsion scheme calls for the use of liquid nitrogen as "fuel". The details of the power cycle are basically liquid nitrogen is heated in contact with the atmosphere, pressurised and expanded through a turbine) .
a cylinderpiston arrangement contains water at 105 c 85quality with a volume of 1l. the system is heated causing the
la paz bolivia is at an altitude of approximately 12000ft. assume a standard atmosphere. how high would the liquid rise
Air enters a window air conditioner at 1 atm, 32C, 70% relative humidity at a rate of 2 m^3/min, and it leaves as saturated air at 15C. Part of the moisture in the air that condenses during the process is also removed at 15C. Determine the rates of h..
Niobium forms a substitution solid solution with vanadium. Compute the number of niobium atoms per cubic centimetre for a niobium–vanadium alloy that contains 27 wt% Nb and 73 wt% V. The densities of pure niobium and vanadium are 8.57 and 6.10 g/cm3,..
An air conditioner in the airport of Timbuktu runs a cooling system using R-410a with a high pressure of 1500 kPa and a low pressure of 200 kPa. It should cool the desert air at 45 degrees C down to 15 degrees C. Find the cycle COP. Will the syste..
The vibrations of an engine mount are to be monitored by an accelerometer which can be treated as a second-order system. It is expected that the vibrations will not exceed 1 kHz. If you have an accelerometer that has a ringing frequency of 20 kHz and..
Air enters a three-stage gas turbine at 100 kPa and 17 degree Celsius. This system uses a regenerator as well as reheating and interfolding. The pressure ratio across each compressor is 14.16; 300 kJ/kg of heat are added to the air in each combustion..
A discrete-time LTI system is specified by the difference equation y[ n ] + y [ n - 1] - 6 y [ n - 2] = 2 x [ n - 1] + x [ n - 2] Write the two canonical forms of state representation for the system.
Determine (a) the mass flow rate of the streams at inlet 2 and the exit, each in kg/s, (b) the rate of exergy destruction, in kW, and (c) the cost of the exergy destroyed, in $/year, for 8400 hours of operation annually. Evaluate exergy at 8.5 cen..
air is contained in a variable-load cylinder-piston device equipped with a paddle wheel. initially the air is at 500
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