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Water from a fire hose enters a nozzle at a velocity of 6.00 ft/s. The nozzle inlet has a diameter of 2.00 inches, and the outlet has a diameter of 0.50 inches.
Consider a closed system which contains an ideal gas that expands to a fixed final volume. If the ideal gas can expand either at constant pressure, or constant temperature, which of these two processe
Archaeologists measure a pre-Columbian ceremonial structure and obtain the dimensions shown.
Determine the molecular weight of a poly(ethylene-propylene) with a degree of polymerization of 25,000 given that 20% of the mers (by number) are ethylene and 80% are propylenel.
A stepped ASTM A-36 steel shaft has a 3 inch diameter for one-half of its length and a 1.5 inch diameter for the other half.
A hydraulic-lift table is used to raise a 1000-kg crate. It consists of a platform and two identical linkages on which hydraulic cylinders exert equal forces.
A straight tube, closed at one end and open at the other end, contains a stoichiometric CH4-air mixture at 300 K and 1 atm
A steam generator comprises a boiler drum, a super heater, an economizer and an air preheater. The feedwater enters the economizer at 140oC and leaves as saturated liquid.
Benzyl chloride is manufactured by the thermal or photochemical chlorination of toluene. The chlorination is usually carried out to no more than 50% toluene conversion to minimize the benzal chloride
Develop a relation for the drag force exerted on the pipe wall by the fluid in the flow direction per unit length of the pipe.
Consider a 1000-W iron whose base plate is made of 0.5-cm-thick aluminum alloy 2024-T6 (density= 2770 kg/m3 and cp= 875 J/kg · °C).
Consider a composite wall that includes an 8-mm-thick hardwood siding, 40-mm by 130-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m3), and a 12-mm
Saturated water vapor at 200oC is isothermally condensed to a saturated liquid in a piston-cylinder device. Calculate the heat transfer and the work done during this process in kJ/kg.
A portion of the stress-strain curve for a stainless steel alloy is shown in the annexed Figure. A 350 mm long bar is loaded in tension until it elongates 2.0 mm, and then the load is removed.
The tank in the figure shown below is being filled with two one dimensional inlets. Air is trapped at the top of the tank. The water height is h.
A turbojet engine takes in air at 80 kpa and 270 k and is compressed to 800 kpa . the burner will heat the air to 1200k. the turbine drives the compressor and delivers the air into the nozzle to produ
Discuss how the angle of the incident light affected the solar cell? How could solar cell designs and/or installations be designed to counter this affect?
Consider a 5-mm-diameter spherical ball at 50 °C which is covered by a 1-mm-thick plastic insulation (k = 0.13 W/m · °C). The ball is exposed to a medium at 15 °C, with a combi
Consider a cylindrical titanium wire 3.0 mm in diameter and 2.5 x 104 mm long. Calculate its elongation when a load of 500N is applied, assuming that the deformation is totally elastic.
A gearset consists of a 16-tooth pinion driving a 40 tooth gear. The diametral pitch is 2, and the addendum and dedendum are1/P and 1.25/P respectively.
A liquid with a specific gravity of 1.65 is pumped to a height of 20m from a large reservoir. The rate of discharge from the pump is 320 L/min through a 2in tube. the total frictional pressure lo
The Brayton cycle shown in figure 6.41 operates using CO2 as a working fluid with compressor and turbine isentropic efficiencies of 1.0. Calculate the thermal efficiency of this cycle when the working
A counterflow, concentric tube heat exchanger is designed to heat water from 20 to 80 °C using saturated steam which is supplied to the annulus at 160 °C.
The airspeed of an aeroplane is measured with a Pitot tube. The plane is flying at an altitude of 10000m, and the Pitot tube measures a gauge pressure of p = 10kPa. What is the airspeed of the pl