An Ambulance Is Generating a Siren Sound at a Frequency

question 1

Multiple Choice

An ambulance is generating a siren sound at a frequency of 2,000 Hz. The speed of sound is 345.0 m/s. The observer and the ambulance are traveling toward each other at a velocity of 24.00 m/s. If the observer is stationary, what is the frequency of the siren perceived by the observer?

• A) 2,032 Hz
• B) 2,150 Hz
• C) 2,220 Hz
• D) 2,575 Hz
• E) 2,750 Hz

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Definitions:

Liver

A vital organ in vertebrates responsible for detoxification, protein synthesis, and production of biochemicals necessary for digestion.

Muscles

Tissues in the body that have the ability to contract, allowing movement of parts of the body.

Glycogen

A polysaccharide that serves as the primary form of energy storage in animals and fungi.

Monounsaturated Fats

Healthy fats found in olive oil, avocados, and some nuts, known for their ability to improve cholesterol levels and decrease heart disease risk.