Acertain material has a density of 0.2 g/ml. is this material good for building a bridge or for making a cushion for a couch

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is

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

Aseasonal prevailing wind in the region of south and southeast asia, blowing from the southwest between may and september and bringing rain (the wet monsoon ), or from the northeast between october and april (the dry monsoon ).

Ijust took the quiz. their is no coefficient needed. : )