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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Definitions:

Overhead Applied

The allocation of estimated overhead costs to specific jobs or departments based on a predetermined rate or method.

Departments

Divisions within an organization, each responsible for specific functions or tasks, contributing to the organization's overall objectives.

Customizing Department

A specialized unit within a company that modifies products to meet specific customer requirements or preferences.

Departmental Predetermined Overhead Rates

Overhead rates calculated for each department based on estimated costs and activity levels, used to allocate overhead costs to products.