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The exhaust nozzle of a jet engine expands air at 388 kPa and 174 C adiabatically to 95 kPa. Determine the air velocity at the exit when the inlet velocity is low and the nozzle isentropic efficiency is 96 percent.
Steam flows through a turbine. The inlet stream is at 1200 KPa and 290 C. The pressure at the exit is 75 KPa. A) Determine the quality and temperature of the steam at the exit. B) Determine the specific work produced by the turbine.
Three children are standing on a 5×5-m raft. The weights of the children at Points A, B, and C are 375 N, 260 N, and 400 N, respectively. If a fourth child of weight 425 N climbs onto the raft, determine where she should stand if the other children r..
Air enters a pipe at 25 Celsius, 100 kPa at a flow rate of 36 m3/hr. A heater on the outside of the pipe draws 8 amps at a voltage of 120 V. All the heat from the heater is transferred to the air (well insulated and wall t is small).
steam at 260 c and 1 atm flow through an 8-in. schedule-80 steel pipe at a rate of 10000 lbhr. estimate the value of h
An input 422 ft-lb of torque from the torque converter.
The flow around a model of a turbine blade is investigated. The model is five times larger than the prototype. A maximum pressure of 4 psi is measured at the leading edge, a maximum velocity of fps is measured near the top of the blade, and a small d..
How long wi1l it take for the mid plane temperature to achieve 50% of its maximum possible temperature reduction?
find the moment of the 12-n force about the origin. the force is parallel to the x-axis and 5cm in the y-direction and
consider the combustion of butane c4h10 in the gas phase with the theoretical amount of air. the products and reactants
kic for the aluminum alloy used in making a structure is 45mpam0.5. if the structure contains a crack 2.5mm long what
A cable drum for a crane is to rotate between 160 and 166 rpm. Design a gear drive for 25 hp in which the input pinion rotates at 925 rpm and the output rotates with the drum. The crane is expected to operate with a 50% duty cycle for 120 hours per w..
initially an insulated rigid tank contains 3.73 kg of water at 240oc and 1 mpa. a heater in the wall of the tank
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