Air is heated at steady state as it flows through a constant area duct. At the inlet, the pressure is 2 bar, the temperature is 300 K and the velocity is 87 m/s. At the exit, the pressure is 1.45 bar and the velocity is 360 m/s. Neglecting potential energy effects and assuming ideal gas behavior for the air, determine the heat transfer per unit mass of air (qcv) flowing through the duct, in kJ/kg.
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Physics, 21.06.2019 17:30
Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery
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Physics, 21.06.2019 18:00
According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?
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Physics, 22.06.2019 17:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
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Air is heated at steady state as it flows through a constant area duct. At the inlet, the pressure i...
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