At a distance 30 m from a jet engine, intensity of sound is 10 w/m^2. what is the intensity at a distance 180 m?

Explanation:

Intensity is given by the expresion:

where:

Io = inicial intensity

r1= initial distance

r= final distance

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

it was given as a lesson and guide for prayer.