The relative density of oak wood is 0.64. find the density in the cgs system

Relative density is defined as:

dr = ds / dw

where:

dr: relative density

ds: density of the substance.

dw: density of water.

In this case we have the relative density of oak wood:

dr = 0.64.

We want to find the density of the substance: ds

Therefore we need to know the density of water in the cgs unit system:

dw = 1g / c ^ 3

Finally:

ds = dr * dw

ds = 0.64 * 1 g / cm ^ 3

ds = 0.64 g / c ^ 3

The density of the oak wood in cgs is 0.64 g / cm ^ 3