A Stationary Source S Generates Circular Outgoing Waves on a Lake.The

question 65

Multiple Choice

A stationary source S generates circular outgoing waves on a lake.The wave speed is 5.0 m/s and the crest-to-crest distance is 2.0 m.A person in a motor boat heads directly toward S at 3.0 m/s.To this person, the frequency of these waves is:

• A)1.0 Hz
• B)1.5 Hz
• C)2.0 Hz
• D)4.0 Hz
• E)8.0 Hz

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Definitions:

Reticular Formation

A network of nerves in the brainstem involved in regulating wakefulness and sleep-wake transitions.

Sleeping

The natural resting state in which the body is not active, the mind is unconscious, and the body can repair and rejuvenate itself.

Cerebellum

A region at the back of the brain that plays a key role in motor control, coordination, precision, and timing of movements.

Medulla

The base of the brainstem, controlling vital bodily functions such as breathing, heart rate, and blood pressure.