What is the input energy in a kettle?

If a simple machine reduces the strength of a force, what must be increased?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little