Which of the following best represents potential energy being converted to kinetic energy?

a.) a pitcher throws a baseball, which is hit by a batter toward the outfield.
b.) a child holds a toy above her head and then lets it fall to the ground.
c.) a man jogs around the block and then stops to drink an energy drink.
d.) a woman peddles her bicycle across town and back again.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

How do i turn 2 s into one in the products

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction