Barn
An object can be treated as a point particle if internal motions are not important and if the object is small in comparison to the distance it moves. http://teachers.redclay.k12.de.us/william.baker/Physics%20Files/physics%20solutions%20manual%20for%20practice-end%20chap.pdf
When you consider the composition of living and non living things, both can be broken down into what comprises them. If one considers non-living matter, then "particle" may be used to describe the smallest unit. As knowledge advances, a "particle" by definition has evolved i.e., quarks being the smallest "particle" of an atom whereas for years it was thought that the atom was the smallest unit of matter. Conversely, the cell is considered the smallest unit of organic (living) matter The only major difference between them is that a cell is the smallest particle of a living object and a molecule (made up of atoms) is the smallest unit of a nonliving object.
You could do worse than consider the 15 science divisions at the head of the SCIENCE subdivision in this answers.com. That will give you a good start. You'll find that several of the primary divisions in science have, in turn, subdivisions below them.
Bio, chem and physics?
Statcoulumb is the unit of charge in cgs system.
Barn
The unit "inverse femtobarn" is significant in particle physics experiments because it represents the amount of data collected by particle detectors. It measures the number of collisions that have occurred, providing valuable information for researchers to study and analyze particle interactions.
One thing it may stand for is mega-electronvolt, a unit of energy often used in particle physics.One thing it may stand for is mega-electronvolt, a unit of energy often used in particle physics.One thing it may stand for is mega-electronvolt, a unit of energy often used in particle physics.One thing it may stand for is mega-electronvolt, a unit of energy often used in particle physics.
Particle Physics
barn
generally it is "A" the S.I unit for area is meters (m) squared (2) m2
An electron-volt (eV) is a unit of energy used in physics. It is the amount of energy gained by an electron when it moves through an electric potential difference of one volt. Scientists use electron-volts as an alternate unit for measuring energy in subatomic particle interactions and in the field of particle physics.
Particle Physics - 2011 is rated/received certificates of: UK:PG
Flux is the number of lines or particle passing per unit area. The unit of area is meter square.
G40 is a supernova remnant. Particle physics is the study particles, radiation and matter. One would be able to study the properties of the G40 by applying the principles of particle physics
Particle size affects solubility. When particle size is small, the surface area per unit volume is larger, thus the solubility is increased.
The frequency of a particle is a measure of how often it oscillates or vibrates within a system. In quantum physics, the frequency of a particle can also refer to the number of wave cycles that pass a fixed point in a unit of time. The frequency of a particle can impact its energy and behavior in various physical phenomena.