Sound Waves in the Interstellar Medium

question 80

Multiple Choice

Sound waves in the interstellar medium

• A) cannot travel through the gas.
• B) travel so slowly that they are undetectable.
• C) can travel through the gas, but the very low density of the interstellar medium makes them inaudible.
• D) travel extremely quickly and are therefore very loud.
• E) can travel through the halo interstellar medium but not the disk of the galaxy.

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Definitions:

Specific Order

A production strategy where goods or services are produced based on specific customer orders rather than for stock.

Future Human Resource Demand

The projected need for employees and skills in an organization to meet its objectives in the future.

Delphi Technique

The soliciting of predictions about specified future events from a panel of experts, using repeated surveys until convergence in opinions occurs.

Internal Supply

The availability of existing employees who can be promoted, transferred, or otherwise moved to fill open positions within an organization.