A car stands from rest and attains a speed of 20 m/s in 10 s. What distance will it cover ?​

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 is the measure of a change in an objects velocity?

The material that keeps its new shape after it is stretched is called?