A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
how to prove
E=mc^2
anonymous
 5 years ago
how to prove E=mc^2

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Did you mean you want to derive this perhaps?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0No it can be proved frm ur basic physics equations

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait i saw it in a book, ill search it nd post it shortly, whole proof step by step

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It relates the energy of a particle to its mass, and is a consequence of the theory of relativity. What it tells us is that mass m and energy Eare equivalent, and that a little bit of mass is equal to a large amount of energy due to teh multiplication factor of the speed of light c squared. It is this principle that permits power generation in nuclear power plants, the destructive energy of nuclear weapons, as well as the life giving energy of our sun. E=mc2 is only one part of the full equation which is far more interesting than that equation. This specific part only deals with particles at rest (the rest energy or rest mass), but there is also a part that deals with the object moving. The full equation is E=root of (pc)2+(mc2) where p is the momentum of an object. There are three interesting things that comes from this equation. The first we have dealt with, is that of a particle at rest p=0, meaning resulting in the realisation that energy and mass are equivalent. The second is that particles without mass, will still have a momentum, meaning that they will be able to move other particles about by colliding with them. Photons (particles of light) have zero rest mass, but are able to exert forces upon other objects through collision. Last but by far not the least, is that the equation predicts the antimatter. the reason being comes from teh mathematics. If you take teh square root of any quantity, it will have two solutions. for example the square root of 4 i.e. 4√ will equal +2 and 2, because (−2)2=4 as does (+2)2=4. Therefore, the mathematics predicts that for a given momentum and rest mass, that there should exist particles with negative energy. Indeed, it was the Nobel prize winning physicist Paul Dirac who first took the second solutions seriously and predicted antimatter a full year or two before it was experimentally observed.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.