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You are standing by the side of the road you hear a frequency of 600 Hz from an approaching fire engine. Once the fire engine passes you by, its frequency is 400 Hz. What speed is the fire engine moving? (speed of sound = 340 m's) Da. 199 m's b. 34.0 m's c. 68.0 m/s d. 60.0 m's e. 66.3 m's

You are standing by the side of the road you hear a frequency of 600 Hz from an approaching fire engine. Once the fire engine passes you by, its frequency is 400 Hz. What speed is the fire engine moving? (speed of sound = 340 m's) Da. 199 m's b. 34.0 m's c. 68.0 m/s d. 60.0 m's e. 66.3 m's

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You are standing by the side of the road you hear a frequency of 600 Hz from an approaching fire engine. Once the fire engine passes you by, its frequency is 400 Hz. What speed is the fire engine moving? (speed of sound = 340 m/s) O a. 199 m's O b. 34.0 m/s O. 68.0 m/s O d. 60.0 m/s O e. 66.3 m's
Transcribed Image Text:You are standing by the side of the road you hear a frequency of 600 Hz from an approaching fire engine. Once the fire engine passes you by, its frequency is 400 Hz. What speed is the fire engine moving? (speed of sound = 340 m/s) O a. 199 m's O b. 34.0 m/s O. 68.0 m/s O d. 60.0 m/s O e. 66.3 m's
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