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

Manufacturing engineering-2, Enumerate the essential features of a milling ...

Enumerate the essential features of a milling fixture

Hazardous and safe areas in plant layout, Q. Hazardous and Safe Areas in pl...

Q. Hazardous and Safe Areas in plant layout? Plants implicitly involve identifiable hazards in respect to the environment, location and presence of potentially explosive materi

Cad - requirements for standard interface, Requirements for Standard Interf...

Requirements for Standard Interface  The interface must be capable of handling all kinds of manufacturing data. There should be no information loss when data is transf

Capacitor, A parallel plate capacitor is charged to a total charge Q and th...

A parallel plate capacitor is charged to a total charge Q and then the battery is removed. A slab of material with dielectric constant ? is inserted between the plates. (Justify y

Calculate days of inventory, Calculate days of inventory: From the dat...

Calculate days of inventory: From the data provided in table 1 and 2, calculate days of inventory. Solution Average Inventory Investment = (Last year inventory + Curre

Newtons ring, a plano concave lens is used instead of plano convex lens in ...

a plano concave lens is used instead of plano convex lens in newtons ring

Determine moment of the force about the origin, (a) What do you understand ...

(a) What do you understand by couple moment. Is it a free vector ? (b) A force F = 10i + 6j - 6k N performs at a position (10, 3, 4) m relative to a coordinates system. Determin

Determine the maximum stress - spring , Determine the maximum stress: ...

Determine the maximum stress: A laminated spring of the quarter elliptic type, 0.6 m long, is to give a static deflection of 80 mm under an end load of 2000 N. If the leaf mat

Nitrogen storage and vaporizer, Q. Nitrogen storage and vaporizer? Bulk...

Q. Nitrogen storage and vaporizer? Bulk cryogenic storage of nitrogen must be located away from process equipment, preferably at the edge or corner of the process area where fi

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