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The grinding wheel in a centerless grinding operation has a diameter = 200 mm, and the regulating wheel diameter = 125 mm. The grinding wheel rotates at 3000 rev/min and the regulating wheel rotates at 200 rev/min. The inclination angle of the regulating wheel = 2.5. Determine the through feed rate of cylindrical work parts that are 25.0 mm in diameter and 175 mm long.
a pure jet engine propels an aircraft at 250 ms through air at 45 kpa and -13 degc. the inlet diameter of this engine
Find the distance, h, from the 1.0 mark to the surface when the hydrometer is placed in a nitric acid solution of specific gravity 1.5.
Due to global climate change scientist predict the earth’s atmospheric temperature will increase as much as 8°F in the next 100 years. Estimate the overall energy increase [kJ] in the atmosphere this temperature rise will cause. Consider the thicknes..
a helical compression spring is made of no. 18 .0147 in wire having a torsional yield strength of 108 kpsi. it has an
a water reservoir 500 m by 500 m by 2 m deep located on a hill supplies water to a town at a gauge pressure of 500 kpa.
an insulated turbine is operating on nitrogen. the gas enters at 3.8 atm 170degc and expands to 1 atm. the isentropic
1 /2kg of a liquid-vapor water mixture in a rigid tank initially at 2 bar is heated by 120V heater for 5 minutes until it becomes a saturated vapor at 4 bar. Changes in kinetic and potential energies can be ignored.
pin p is constrained to move along the curve defined by the lemniscate r 4 sin 2theta ft. if the angular position of
a diesel engine uses 54.4 kg of fuel oilh of calorific value 45 mjkg. the thermal efficiency of the engine is 25.
water at 15 degrees celcius flows through a nozzle that contracts from a diameter of 20cm to 2cm. the pressure at
a tank with volume 0.100m3 is filled with helium gas. if a balloon is filled with helium until the diameter is 30.0cm
The cone frustum in the figure contains incompressible liquid to depth h. A solid piston of diameter d penetrates the surface at velocity V. Derive an analytic expression for the rate of rise dh/dt of the liquid surface.
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