A 4kg box rests on the floor. A man comes over and pushes it with a 30N force. If the box slides across the floor for 2s, how far will it go?

Which describe reflection? check all that apply. light bounces off a boundary.

Which changes of state do the labels represent? a: b: c:

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.