ohm
Unit measure for resistence is called as "OHM". Its law is called as "OHM'S LAW".
daN is Nominal resistence on Direction of bigger resistence, this is used to measure the concrete resistence. Andre Fochesato (Brazil)
The basic unit used for electrical resistance is Ohm that uses the Greek symbol for Omega. This unit was created in 1881 by the International Conference of Electricians and was named after Georg Simon Ohm.
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.
The international (SI) unit of mass is the kilogram.
The measure unit of a kilometer stick is kilometer.
division
The 'ERG' is the standard unit for work or mechanical energy.
Hertz, hz= 1/second is the unit measure of frequency.
Class room can be measure in Meters easily :)