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.

Question

anonymous · Answer

i know that the  equation to calculate the intensity of sound is
$$L =10 \log(I/I _{0})$$

anonymous · Answer

U know the value of $$I_{0}$$?????

anonymous · Answer

oh uh... it just  gives me the 70dB ...

anonymous · Answer

$$I_{0}???????$$
I am asking u this.

anonymous · Answer

0 ?

anonymous · Answer

Nope, refer ur notes.

anonymous · Answer

U need to know at least this.

anonymous · Answer

70 x 2? so 140? ... :S