A rock falls from a cliff with an acceleration of 13 m/s2 towards the ground. If the rock starts from rest, and it takes 3 s to hit the bottom, how high was the cliff in meters?

Describe uniform velocity and variable velocity in short

Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these