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An airplane is traveling at a constant speed of 200 m/s. Air enters the jet engine at the rate of 40 kg/s, while the combustion products are discharged at an exit velocity of 600 m/s relative to the airplane. The intake area is 0.3 square meters, and the exit area is 0.6 square meters. The ambient pressure is 0.7 atm, and the pressure at the exit of the engine 0.72 atm. Calculate the thrust developed by the engine. Assume uniform steady conditions at the inlet and exit and the properties of the products of combustion to be the same as those of air.
a round casting is 0. 2 m in diameter and 1 m in length. another casting of the same metal is elliptical in cross
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a sky diver with a mass of 70 kg jumps from an aircraft. the aerodynamic drag force acting on the sky diver is known to
based solely on static elevation head if the water level in a city water tower is 860 feet above sea level and the
Cortical bone gets weaker with aging, but it turns out that diaphyseal diameters can also change with aging, particularly in males, such that the safety factor of the diaphysis is approximately constant with aging.
answer the following questions1. name six types of springs.2. name three types of gears.3. state hookes law.4. give the
refrigerant 134a enters an adiabtic compressor as a saturated vapour at -20degree c and exits at 1mpa pressure. if the
i want a unique version of this
biodiesel is produced from vegetable or animal oils. usually the glycerine in the oil is replaced by methanol. since
an outdoor track is 420 ft in diameter. a runner increases her speed at a constant rate from 14 to 24 fts over a
Energy in the home, personal energy use and home energy efficiency. Efficient use of ‘waste' heat and renewable heat sources.
assume that you are responsible for the design of a wide-plate tension member built from a structural aluminum. the
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