What is an objects weight? * Its mass Its volume Its mass multiplied by the pull of gravity O Its density​

Engineers have contribute to society in many ways like making the technology we use today or any type of power energy material

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic