What’s the velocity of a ball falling with 100 joules of kinetic energy and a mass of 2 kilograms?

3 m/s
5 m/s
7 m/s
8 m/s
10 m/s

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.

What quantity do units represent in value

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction