An ambulance is generating a siren sound at a frequency of $2,400 \mathrm{~Hz}$. The speed of sound is $345.0 \mathrm{~m} / \mathrm{s}$. The observer is traveling at a velocity of $24.00 \mathrm{~m} / \mathrm{s}$ toward the ambulance and the ambulance is traveling at a velocity of $20.00 \mathrm{~m} / \mathrm{s}$ toward the observer. What is the frequency of the siren perceived by the observer?
A) $2,489 \mathrm{~Hz}$
B) $2,560 \mathrm{~Hz}$
C) $2,675 \mathrm{~Hz}$
D) $2,830 \mathrm{~Hz}$
E) $2,725 \mathrm{~Hz}$

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The Answer of  An ambulance is generating a siren sound at a frequency of $2,400 \mathrm{~Hz}$. The speed of sound is $345.0 \mathrm{~m} / \mathrm{s}$. The observer is traveling at a velocity of $24.00 \mathrm{~m} / \mathrm{s}$ toward the ambulance and the ambulance is traveling at a velocity of $20.00 \mathrm{~m} / \mathrm{s}$ toward the observer. What is the frequency of the siren perceived by the observer?
A) $2,489 \mathrm{~Hz}$
B) $2,560 \mathrm{~Hz}$
C) $2,675 \mathrm{~Hz}$
D) $2,830 \mathrm{~Hz}$
E) $2,725 \mathrm{~Hz}$

An Ambulance Is Generating a Siren Sound at a Frequency 2,400 Hz2,400 \mathrm{~Hz}2,400 Hz

An Ambulance Is Generating a Siren Sound at a Frequency $2,400 \mathrm{~Hz}$