Not sure what you mean but I think you are either talking about a lunch box or a thermos
Explanation:
I think it is the third image as marked in the diagram I kept above because as we know first class levers have the fulcrum between the force and the load
Hi,
The goal of a theory is <u>to explain natural and physical </u><u>phenomena.</u>
Hope it helps you...
Pls mark brainliest if it helps you...
(Answered by Benjemin)