Please help I don’t know the answer

In a system, when potential energy decreases, then entropy also decreases. true false

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z