Please answer the question in the picture, worth 25 points I will report any links or false answers immediately

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Most short-period comets do not have randomly oriented orbits because