A Jet Engine Emits a Whine of Frequency 3000 Hz

question 70

Multiple Choice

A jet engine emits a whine of frequency 3000 Hz.When the engine is moving directly away from an observer at half the speed of sound,an observer hears a frequency of

• A)1000 Hz
• B)1500 Hz
• C)2000 Hz
• D)4500 Hz
• E)6000 Hz

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Definitions:

Immigration

Choosing to live indefinitely in a country that is not your country of origin.

Endocrine System

The system of the body consisting of ductless glands.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse from one neuron (nerve cell) to another target neuron.

Nervous System

The complex network of nerves and cells that transmit signals between different parts of the body, enabling communication between the brain and the body.