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Air speed at nozzle exit

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Air is flowing through a rocket nozzle. Inside the rocket the air has a density of 5.25 kg/m cubed and a speed of 1.20 m/s. The interior diameter of the rocket is 15.0 cm. At the nozzle exit, the diameter is 2.50 cm and the density is 1.29 kg/m cubed. What is the speed of the air when it leaves the nozzle?

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Solution Summary

The expert examines air speed at nozzle exits. The speed of air when it leaves the nozzle is determined.

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The amount of mass that flows per unit area and per unit time (mass flux) is given by the density times the velocity. The total amount of mass that flows through an area is thus the density times the velocity times the area ...

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