Conservation laws, Physics

conservation laws

A law that states that, in a closed system, the whole quantity of something will not enhance or reduce, but exactly remain the same; i.e., its rate of alteration is zero. For physical quantities, it states that something can neither be created nor destroyed. Mathematically specking, if a scalar X is the quantity assumed, then

dX/dt = 0,

or, equivalently,

X = constant.

For a vector field F, the conservation law is written as following

div F = 0;

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

Some particular examples of conservation laws are following:

conservation of mass-energy

The overall mass-energy of closed system remains constant.

conservation of electric charge

The overall electric charge of any closed system remains constant.

Conservation of linear momentum

The overall linear momentum of any closed system remains constant.

Posted Date: 3/28/2013 1:40:51 AM | Location : United States







Related Discussions:- Conservation laws, Assignment Help, Ask Question on Conservation laws, Get Answer, Expert's Help, Conservation laws Discussions

Write discussion on Conservation laws
Your posts are moderated
Related Questions
When an earthquake occurs, two types of sound waves are generated and travel through the earth. The primary, or P, wave has a speed of about 7.5 km/s and the secondary, or S, wave

what is newton law of gravitation?


Illustrate how temperature measured in fiber optic sensor. Temperature can be measured via using a fiber which has evanescent loss which varies along with temperature. In the f

Like the centre of mass, the moment of inertia is a function of a body that is concurrent to its mass distribution. Moment of inertia gives a measurement of the resistance of a bod



Derive the relation between the magnitude of electric displacement and displacement current.

Explain about the term spatial coherence of Laser. Spatial coherence: This coherence is a measure of the correlation among the phases of a light wave at several points’ tran

A 10 farad capacitor is used in a circuit. The voltage difference between the plates of the capacitor is 20 volts. What is the magnitude of the charge on each of the capacitor's pl