If an object is dropped from a tall building and it hits the ground 3.0 s later, what is the velocity of the object when it hits the ground? (remember that the velocity is downward)
v= m/s

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

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line