Question

what is density ??...................
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Answer 1

Answer:

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... For example, the density of air is 1.2 kilograms per cubic metre.

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Answer 2

Answer:

Density simply means the solidity/ thickness. A more well defined meaning will be that density is the mass per volume of a substance. That means if the object's mass increases, density increases. To make yourself understand better, try comparing two liquids, Oil and Water. By touching itself, you can feel that oil has more thickness. That's what you call density.

I hope you understood...