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 9 cars per minute.What is the late-night decibel level?

Question

Quizplus · Accepted Answer

The decibel level is not directly affected by the number of cars passing by, only by their noise level. Therefore, the late-night decibel level will be the same as the afternoon level, which is 85 dB. The number of cars passing by is irrelevant.

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