sound?
Grains is the unit of mass of the projectile and the propellants.
As far as I am aware, CO is not a unit of measure.
A unit can be a measure of length. It is one-dimensional. A squared unit can be a measure of area. It is two-dimensional. A cubic unit can be a measure of volume. It is three-dimensional.
This depends on what unit you are using to measure in. However, area will always be measure in (unit)^2.
division
The international (SI) unit of mass is the kilogram.
The measure unit of a kilometer stick is kilometer.
The 'ERG' is the standard unit for work or mechanical energy.
the least unit to measure the length is fermo meter .
Hertz, hz= 1/second is the unit measure of frequency.
Class room can be measure in Meters easily :)
The Unit Used To Measure A Train Can Be Kilometer.