- #1
alba
- 140
- 4
Homework Statement
This is not homework. I am trying to figure out a simple and quick way to find the speed that correspond to a given energy can you tell me if it is correct?
.
At LHC they had experiments that give protons 7 Tera eV:
we know that a proton is .938272 Gev , so 7*10^12/.938*10^9 = 7460 is the increase of masses.
Now if we reverse the formula for mass
Homework Equations
7460+1 = 1 / √1 -x^2
we get
(1-x^2) 7461^2 = 1
x2 = 74612/ 7461^2+1 x = 0.999999991
The result matches LHC info, is there any mistake?
If this is correct why isn't the reverse accepted any more and the current formula is
E = p 2c 2 + m 2c^4?
Thanks