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A turbine is connected to an electric generator through gears, as shown in Fig. 5.59. The mass moments of inertia of the turbine, generator, gear 1, and gear 2 are given, respectively, by 3000, 2000, 500, and 1000 kg-m2 Shafts 1 and 2 are made of steel and have diameters 30 cm and 10 cm and lengths 2 cm and 1.0 m, respectively. Find the natural frequencies of the system.
refrigerant 134a enters the capillary tube of a refrigerator as a saturated liquid at 0.8 mpa and is throttled to a
a 10-kg block is attached to spring a and connected to spring b bycord and pulley. the block is held in the position
a 20kg cylinder with radius of gyration 0.602m slips on a surface 20 degrees to the horizontal. the cylinder rotates
how does the statistical mechanical definition of entropy allow a reinterpretation of the second and third law of
geothermal steam is planned as an energy source for power generation. the steam enters and adiabatic exchanger at 2
Kinetic and potential energy effects can be ignored. Evaluate the work required and the heat transfer, each in kW.
Consider an electric motor with shaft power output of 20kW and an efficiency of 88%. Determine the rate at which the motor dissipates heat to the room it is in when the motor operates at full load. In winter, this room is normally heated by a 2-kW re..
Sketch a diagram of the system. Use free-body diagrams to write each of the two mechanical equations. Set up the equations in matrix form.
a mass of 5kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder device at 125kpa. initially
Find the velocity of the bullet and block just after impact.
Determine the allowable triangular load intensity q0,allow if the distance L equals 3.5 ft.
what assumption must you make concerning the gas leakage rate of air from a pressurized tank if you can reasonably
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