Air Is Flowing Through a Rocket Nozzle

question 22

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

---

Definitions:

Complexity Index

A measure used to evaluate the complexity level of a project, program, or system, typically considering factors like size, diversity, and interdependencies.

Reporting

The act of presenting or delivering information or data, often in the form of summaries or analyses, to stakeholders or decision-makers.

Darnall-Preston Complexity Index

A framework used to assess the complexity of managing large-scale projects, considering factors like size, scope, and stakeholder involvement.

Complexity Level

The degree of complication or difficulty of a project, system, or problem, based on factors like size, variability, and the number of elements involved.