What are large nuclei unstable?

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

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.