--%>
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 : Radioactive dating-Determining of age

    In the radioactive dating we use half life to find out the age of a sample however not average life why? Describe.

    		•
  • Q : Define Weiss constant Weiss constant :

    Weiss constant: The characteristic constant dependent on the substance, employed in computing the susceptibility of the paramagnetic materials.

    		•
  • 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 : Define Joule-Thomson effect or

    Joule-Thomson effect: Joule-Kelvin effect (J.P. Joule, W. Thomson [later Lord Kelvin]): The change in temperature which takes place whenever a gas expands into an area of lower pressure.

    		•
  • Q : Developing an algorithm to remove noise

    sir, Would you please help me to develop an algorithm to reduce noise and to detect weak signals under water using Green's function?

    		•
  • Q : Define Le Chateliers principle Le

    Le Chatelier's principle (H. Le Chatelier; 1888): When a system is in equilibrium, then any modification imposed on the system tends to shift the equilibrium state to decrease the consequence of that applied change.

    		•
  • Q : Explain Correspondence limit or

    Explain Correspondence limit or Correspondence principle? Correspondence limit (N. Bohr): The limit at which a more common theory decreases to a more specialized theory when the situations that the

    		•
  • Q : Law of Lamberts Cosine State the law of

    State the law of Lamberts Cosine? Describe briefly?

    		•
  • Q : Ampere's law Explain  Ampere's law?  

    Explain Ampere's law?   Ampere's law (A.M. Ampere):

  • Q : Define Radian or SI unit of the angular

    Radian: rad: The supplementary SI unit of the angular measure stated as the central angle of a circle whose subtended arc is equivalent to the radius of the circle.

    		•