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#1 2007-10-09 21:42:15
- Josh McDonald
- Guest
Subatomic Particle Problem
a subatomic particle called lambda zero decas spontaneously at rest into 2 other particles. Their masses are m(lambda zero) = 2183.3 me, m(1) = 273.2 me, m(2) = 1836.2 me, where me = 9.11E-31.
a) How muchkinetic energy in this process by loss of mass?
All I did was use E=mc^2. I found the amount of mass missing, and multiplied it by the speed of light squared.
b) What is the momentum and kinetic energy of (1) and of (2)?
No idea how to do this?
I know that my answer for (a) equals the kinetic energies of the 2 particles added together. I'm lost from here...
#2 2007-10-09 23:21:24
- JaneFairfax
- Member
- Registered: 2007-02-23
- Posts: 6,868
Re: Subatomic Particle Problem
Use the principle of conservation of momentum? Thats what I can think of.
Last edited by JaneFairfax (2007-10-10 00:47:27)
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