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

question 73

Multiple Choice

In the afternoon,the decibel level of a busy freeway is 85 dB with 90 cars passing a given point every minute.Late at night,the traffic flow is only 8 cars per minute.What is the late-night decibel level?

• A)200 dB
• B)85 dB
• C)170 dB
• D)74 dB
• E)8.5 dB

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