--%>
Assignment Help - homework help

Conservation laws and illustrations of conservation laws

Explain Conservation laws and illustrations of conservation laws (Conservation of mass-energy, electric charge, linear momentum and angular momentum) ?

Conservation laws: The law which states that, in a closed system, the net quantity of something will not raise or reduce however remains exactly similar; that is, its rate of change is 0. For physical quantities, it defines that something can neither be formed nor destroyed. Mathematically, when a scalar X is the quantity considered, then

dX/dt = 0,
Or, consistently,
X = constant.

For a vector field F, the conservation law can be written as:
div F = 0;

i.e., the vector field F is divergence-free everywhere (that is, has no sources or sinks).

Some of the specific illustrations of conservation laws are:

Conservation of mass-energy: The net mass-energy of a closed system stays constant.

Conservation of electric charge: The net electric charge of a closed system stays constant.

Conservation of linear momentum: The net linear momentum of a closed system stays constant.

Conservation of angular momentum: The net angular momentum of a closed system stays constant.

There are numerous other laws which deal with particle physics, such as conservation of baryon number, of strangeness, and so forth, that is conserved in some basic interactions (like the electromagnetic interaction) however not others (like the weak interaction).

   Related Questions in Physics

  • Q : What are Woodward-Hoffmann rules

    Woodward-Hoffmann rules: The rules leading the formation of products throughout certain kinds of organic reactions.

    		•
  • Q : How elevation and air pressure affects

    Briefly state how does the elevation and air pressure affects the boiling point of water?

    		•
  • Q : Explain Muon experiment Muon

    Muon experiment: The experiment that demonstrates proves the prediction of time dilation by the special relativity. Muons, that are short-lived subatomic particles, are made with enormous energy in the upper environment by the interaction of energetic

    		•
  • Q : Explain Coanda effect Coanda effect:

    Coanda effect: The effect which points out that a fluid tends to flow all along a surface, instead of flowing via free space.

    		•
  • Q : Describe the term ntu in thermodynamics

    Describe the term ntu in thermodynamics? Illustrate in short.

    		•
  • Q : Define Permittivity of free space or

    Permittivity of free space: electric constant; epsilon_0: The ratio of the electric displacement to the intensity of the electric field generating it in vacuum. It is equivalent to 8.854 x 10-12 F/m.

    		•
  • Q : Kinematics why rockets are also called

    why rockets are also called as projectile

    		•
  • Q : Problem on magnetically coupled pair

    When one coil of a magnetically coupled pair has a current of 5.0A, the resulting fluxes Φ11 and Φ21 are 0.2mWb and 0.4mWb, respectively.  If the turns are N1 = 500 and N2 = 1500, find L1, L2, M and the coeffici

    		•
  • Q : Define Carnots theorem Carnot's theorem

    Carnot's theorem (S. Carnot): The theorem that states that no engine operating between the two temperatures can be more proficient than a reversible engine.

    		•
  • Q : Define Determinism principle

    Determinism principle: The principle that when one knows the state to an unlimited accuracy of a system at one point in time, one would be capable to predict the state of that system with unlimited accuracy at any other time, past or the future. For i

    		•