- #1
rugapark
- 22
- 0
I had a go at 2 Q's and wanted to make sure I'm doing this right.
so here's the first one, and maybe if i went wrong with it I was going to redo the 2nd Q on my own.
[tex]\lambda = h/p = h/mv (\sqrt{1-((v^2)/(c^2))})[/tex]
so, an Alpha Particle traveling @ 2x106m/s (mass = 6.645x10-27 kg)
[tex]\lambda = [(6.626*10^-^3^4)/((6.645*10^-^2^7)*(2*10^6))][/tex] x [tex]{\sqrt{1-[(2*10^6)^2/(3*10^8)^2]}}[/tex]
= (4.986x10-14) x (99.998x10-2)
= 4.99x10-14m
how does this look?
and also, am i right in assuming if the question does not state otherwise, that the mass of an alpha particle is always 6.645x10-27kg?
Cheers guys
Ruga
so here's the first one, and maybe if i went wrong with it I was going to redo the 2nd Q on my own.
[tex]\lambda = h/p = h/mv (\sqrt{1-((v^2)/(c^2))})[/tex]
so, an Alpha Particle traveling @ 2x106m/s (mass = 6.645x10-27 kg)
[tex]\lambda = [(6.626*10^-^3^4)/((6.645*10^-^2^7)*(2*10^6))][/tex] x [tex]{\sqrt{1-[(2*10^6)^2/(3*10^8)^2]}}[/tex]
= (4.986x10-14) x (99.998x10-2)
= 4.99x10-14m
how does this look?
and also, am i right in assuming if the question does not state otherwise, that the mass of an alpha particle is always 6.645x10-27kg?
Cheers guys
Ruga