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Air with negligible velocity enters the impeller eye of a centrifugal compressor at 158C and 1bar. The impeller tip diameter is 0.45 m and rotates at 18,000 rpm. Find the pressure and temperature of the air at the compressor outlet. Neglect losses and assume g ¼ 1.4
a 380-liter tank contains steam initially at 300 kpa and 400degc. a valve is opened and steam flows out of the tank at
a well-insulated rigid tank contains 20 kg of saturated liquid-vapor mixture of water at a 100 kpa. initially 73.72 of
The peak power of a 6ft. diameter antenna is 10 watts and its duty cycle is 0.250. The wave length is 0.03m/cycle. Find the power density in mw/cm2 at 50 meters from the antenna.
A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?
an oil pipeline was constructed to transport an oil with sg 0.8 for a distance of 10 miles. the country was hilly so
Water enters a 10-cm diameter pipe at a uniform velocity V, it leaves the pipe at a non-uniform velocity of u= 10(1 - r^2/0.01) m/s, where r is in meters. Using the equation derived in class (10-2-14) find the magnitude of V and the mass flow rate of..
spherical tanks a and b shown here are connected by a pipe and valve. tank a has a diameter of 2.29 m and tank b a
an electric 50 l hot water tank is initially full and has a temperature of 90 degrees c. water is drawn from the tank
Determine the cutting force F applied by the blade DE to the bar at G in terms of the force P applied to the handle of the heavy-duty cutter. Assume that the cutting force F is perpendicular to the lower edge of the blade DE.
Would you expect the outlet temperature of the pharmaceutical to depend on whether the springs have a left-hand or right-hand spiral? Why?
A diesel engine is fitted with a turbocharger that comprises a radial flow compressor driven by a radial flow exhaust gas turbine. The gravimetric air-fuel ratio is 20:1; the air is drawn into the compressor at a pressure of 1 bar and at a temperatur..
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..
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