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The turbine shown in Fig. P5.121 develops 100 hp when the flowrate of water is 20 ft3/s. If all losses are negligible, determine
(a) the elevation h,
(b) the pressure difference across the turbine, and
(c) the flowrate expected if the turbine were removed.
fluid mechanics problem a triangular shaped cylinder is enclosed in a container of oil and rotates at an angular
a the vacancy formation energy in a particular metal is 0.5 ev. calculate the concentration of vacancies at 400 oc b
Determine the heat fluxes associated with convection, q"conv, evaporation, q"evap, and radiation exchange with the sky, q"rad. Do your calculations suggest why the concrete is wet instead of dry? Explain briefly.
A turbojet engine is designed for cruise conditions of 600mi/hr at an altitude of 10000 meters where the ambient temperature and pressure are -50 C and 26.5 kPa, respectively. The turbojet operates at a turbine inlet temperature (T3) of 867 C and a n..
The cold cranking amperes (CCA) of a conventional lead-acid automobile battery is the amount of current the battery can provide at 0°F for 30 seconds and maintain at least 1.2 volts per cell (or 7.2 volts for a standard 12-volt battery). If a batter..
A 10kg block sliding along a frictionless surface with a velocity of 10m/s comes into contact with a horizontal, uncompressed linear spring. If the spring slows the block down to 0 m/s while being compressed a total of 30 cm, what is its spring const..
Even when the system supports blocking semaphores, starvation might happen to the low-priority threads. Describe the sequence of events that causes starvation.
the diagonal of a long triangular bar 45-45-90 triangle section is well insulated. while sides of equivalent length are
Would the actual power required by the pump be greater or less than the calculated value? Explain.
The beam is loaded with a force per length of q0, which includes the weight of the beam itself. Determine the force in the cable.
a 45-g bullet is fired with a velocity of 600 ms into a wooden block which rests against a solid vertical wall. knowing
The top pulleys of a Weston differential pulley block have diameters of 210 and 190 mm. Determine the effort required to raise a load of 150 kg if the efficiency of the system is 35%
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