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Air at 7°C enters a turbojet engine at a rate of 16 kg/s and at a velocity of 300 m/s (relative to the engine). Air is heated in the combustion chamber at a rate 15,000 kJ/s and it leaves the engine at 427°C. Determine the thrust produced by this turbojet engine. (Hint: Choose the entire engine as your control volume.)
how much energy in ft-lbf btu and kj is required to accelerate my 3400 pound car from rest to a velocity of 60 mph on a
Water cools at a rate of 0.1 deg C per second as it flows in a pipe at 1 m / s. At any fixed location, the temperature is independent of time. If the pipe is 10 m long, what must the temperature be at the upstream end to keep the water temperature at..
a strain gage system is mounted on an airplane wing to measure wing oscillations and strain during wind gusts. the
Put together a team of five students from your class. Using the 10-stage design process, have your team develop a carrying mechanism for Rollerblades and/or your shoes when one is not in use.
a 10-m long and 10-mm inner-diameter pipe made of commercial steel is used to heat a liquid in an industrial process.
how long would it take to use up current reserves? suppose the total resource is five times current reserves; if the use rate continues to grow at 2.6 percent, how long would it take to use up the resource?
a single-pane glass window is used in a heated dwelling. outside the dwelling the ambient temperature is 0degc while
Block A has a mass of 3 kg and B has a mass of 5 kg. If the system is released from rest, determine the velocity of each block in t=4s. Neglect the mass of the pulleys.
link bc is 6 mm thick and is made of a steel with a 450-mpa ultimate strength in tension. what should be its width w if
data analysis of the breaking strength of a certain fabric shows that it is normally distributed with a mean of 300 lb
a u-tube manometer is connected to a gas pipe. the level of the liquid in the manometer arm open to the atmosphere is
a gas turbine engine based on the brayton cycle uses air as the working fluid that produces 5mw net power output. the
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