Suppose that sound is emitted uniformly in all directions by a public address system. the intensity at a location 26 m away from the sound source is 3.40 10-4 w/m2. what is the intensity at a spot that is 84 m away?

Intensity at the 84 m will be

Explanation:

We have given that intensity at a location of 26 m away from the sound source is

We have to find the intensity at a distance

We know that intensity is inversely proportional to the square of distance from the sound source

So

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.