Arock resting high in a cliff is an example of an object with what type of energy?
kinetic energy because it is doing work
kinetic energy because it has the ability to do work
potential energy because it is doing work
potential energy because it has the ability to do work

If the area of a square has increased by a factor of 16, by how much has each side increased?

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.