An Ambulance Is Generating a Siren Sound at a Frequency

question 10

Multiple Choice

An ambulance is generating a siren sound at a frequency of 2,400 Hz. The speed of sound is 345.0 m/s. If the ambulance is traveling at a velocity of 24.00 m/s away from the stationary observer, then what is the frequency of the siren perceived by the observer?

• A) 2,375 Hz
• B) 2,306 Hz
• C) 2,266 Hz
• D) 2,244 Hz
• E) 2,210 Hz

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Definitions:

Thalamus

A major part of the brain located in the center of the brain, acting as a relay station for sensory and motor signals to the cerebral cortex.

Corticospinal Tract

A major neural pathway that runs from the brain's cortex through the spinal cord, coordinating voluntary motor movements.

Corticobulbar Tract

Neural pathways that conduct impulses from the brain to the brainstem, influencing movements in the head and neck.

Rubrospinal Tract

A neural pathway in the central nervous system involved in the control of voluntary movements.