Atrain whistle has a sound intensity level of 70. db, and a library has a sound intensity level of about 40. db. how many times greater is the sound intensity of the train whistle than that of the library?

The sound intensity of train is 1000 times greater than that of the library.

Explanation:

We have expression for sound intensity level,

A train whistle has a sound intensity level of 70 dB

We have

A library has a sound intensity level of about 40 dB

We also have

Dividing both equations

The sound intensity of train is 1000 times greater than that of the library.

answer: strength i guess

explanation:

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.