Question

Kinetic energy increases. Potential energy decreases. (You can pick multiple answers)

A.A baseball pitcher throws a fastball to a batter,
B.A book is placed on a shelf.
C.A skier descends from a mountain top.
D.A rubber band is stretched around a ponytail,
E.Water molecules are headed until they become a vapor,
F.A rechargeable battery recharges.

Answer 1

A. A baseball pitcher throws a fastball to a batter,

C. A skier descends from a mountain top.

E. Water molecules are headed until they become a vapor,

Step-by-step explanation:

Kinetic energy is the energy associated with motion and potential energy is energy associated with position in a system.

In the examples cited, the kinetic energy increases since the object is in motion, so its potential energy decreases.