Bill is hit by a lightning bolt that blasts him backwards at 183m/s. Bill hits the ground 0.05 seconds later. How far did Bill fly?

What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Name two kinds of practical electric pumps.