What is density?

The density of the material is the weight per unit volume of the material.

Its unit-g/cubic centimeter or pounds/cubic foot.

Density of the water- 1g/cc or 62.4lb/cu ft.

What is specific gravity or relative density?

It is the ration of the density of the substance to the density of the water.

What is Specific Volume?

It is the reciprocal of density.

What is Velocity?

It is the distance covered by the body in unit time.

unit is: m/sec or m/min

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