Air Is Flowing Through a Rocket Nozzle

question 20

Multiple Choice

Air is flowing through a rocket nozzle.Inside the rocket the air has a density of 5.25 kg/m³ 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/m³.What is the speed of the air when it leaves the nozzle?

• A)123 m/s
• B)176 m/s
• C)88.0 m/s
• D)45.7 m/s
• E)29.3 m/s

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