From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete. How far would he need to move from the jackhammer so that its perceived loudness decreases by a factor of 8?

Distance from the jackhammer is given as

where I is intensity at x = 4 m

Explanation:

As we know that the loudness of the sound is given as

So we have

we have to change the intensity becomes

so the loudness becomes 1/8 times of initial

now we know that intensity inversely varies with the square of the distance

so we have

so we have

what do the notation's look like?

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation