In the Afternoon,the Decibel Level of a Busy Freeway Is

question 51

Multiple Choice

In the afternoon,the decibel level of a busy freeway is 80 dB with 100 cars passing a given point every minute.Late at night,the traffic flow is only 5 cars per minute.What is the late-night decibel level?

• A)77 dB
• B)74 dB
• C)70 dB
• D)68 dB

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