Saturday

April 18, 2015

April 18, 2015

Posted by **Aimee** on Friday, May 27, 2011 at 12:55am.

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 -
**Henry**, Saturday, May 28, 2011 at 3:55pmNEW 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**

**Related Questions**

Functions - Problem solving with logarithmic functions: A new car has an ...

physics - sound level - The source of a sound wave has a power of 2.50 µW. ...

Physics - As measured from centre ice, a single wildly cheering hockey fan can ...

STUPID PHYSICS - As measured from centre ice, a single wildly cheering hockey ...

physics - From a vantage point very close to the track at a stock car race, you ...

Grade 12 Advanced Functions Math - Hello! Can someone please help me out for ...

physics - 1)As a sound source moves away from a stationary observer, the number ...

physics - 1)As a sound source moves away from a stationary observer, the number ...

physics - 1)As a sound source moves away from a stationary observer, the number ...

Physics - 1)As a sound source moves away from a stationary observer, the number ...