Show mass energy relation, Mechanical Engineering

Assignment Help:

Q. Show Mass energy Relation?

Until the time of Einstein, mass and energy were considered as two different physical quantities. But in 1905, with the help of postulates of the special theory of relativity Einstein demonstrated that neither mass nor energy were conserved separately, but they could be traded one for the other and neither mass nor energy were conserved separately, but they could be traded one for the other and only the "total mass energy" was conserved. The most famous relationship between the mass and the energy given by Einstein is

E = mc2

Here m is the effective mass, c is the speed of light, and E is the energy equivalent of the mass. According to this relation a certain amount of energy of any form can be considered as mass or conversely. Energy will increase if mass decreases; mass can be turned into energy. If the mass increases, energy must be turned into energy. If the mass increases, energy must be supplied, energy can be turned into mass. Mass and energy are interchangeable. Mass and energy is the same thing. According to Einstein's first postulate of relativity, all laws related with physical events have the same form in all inertial frames. Thus Newton's second law and work energy theorem will also remain valid in all inertial frames.

F = dp / dt = dp (mv) /dt

Now from the statement of work energy theorem

Change in kinetic energy = work done by the particle

D Ek = dW = Fdx


Related Discussions:- Show mass energy relation

Illustrate the electromagnetic clutch, Illustrate the Centrifugal Clutch in...

Illustrate the Centrifugal Clutch in Detail with neat sketch ? Illustrate the Electromagnetic Clutch in Detail with neat sketch ? Illustrate the Diaphragm spring Clutch in

Physics, difference brtween parallel and unlike parallel forces

difference brtween parallel and unlike parallel forces

CUPOLA FURNACE, With the help of neat diagrams explain various parts of Cup...

With the help of neat diagrams explain various parts of Cupola. Define its operation. How the thermal efficiency of Cupola calculated?

Determine the chemical formulate for refrigerant, (a) Draw P-H and T-S diag...

(a) Draw P-H and T-S diagrams for following cases : (3) (i) Cycle with superheated vapour before compression. (ii) Cycle with sub-cooling or under-cooling of refrigerant.

Area Moment of Inertia, Are a Moment of Inertia Moment of force about ...

Are a Moment of Inertia Moment of force about a point is product of the force ( F ) and perpendicular distance ( d ) between point and line of action of that is F.d. This mome

Explain ash handling system, Illustrate the following : a. Ash handling ...

Illustrate the following : a. Ash handling system b. Dust collection What are the impurities in the water and how they are replaced for use as feed water in modern thermal

Heat engine - thermodynamics, HEAT ENGINE - Thermodynamics: HE A T ...

HEAT ENGINE - Thermodynamics: HE A T ENGINE. A heat engine is a thermodynamics system that operates in a cycle in which heat can be transferred from heat source to heat si

Magnitude of the resultant couple, Magnitude of the resultant couple: ...

Magnitude of the resultant couple: For non-parallel forces also the location of the line of action of resultant may be determined by utilizing R × d = ∑ M o . The magnitu

TURBINE, Is it possible to rotate turbine blades without any fluid means th...

Is it possible to rotate turbine blades without any fluid means there is no requirement of water or air to rotate turbine blade. blades may rotates with the help of spring compress

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd