Post a New Question


posted by .

Log functions:

A new car has an interior sound level of 70 dB at 50 km h. A second car, at the
same speed, has an interior sound level that is two times more intense than that
of the new car. Calculate the sound level inside the second car.

  • Math -

    NEW CAR:

    10LogN = 70db,
    Divide boh sides by 10:
    LogN = 7,
    N = 10^7.

    2ND CAR:

    N = 2*10^7,
    10Log(2*10^7) = 10*(0.3010+7) = 73db.

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question