alpha decay problem....

[sarahisme]

Hi all.

i can't quite figure out how to modify the equation for this alpha particle decay stuff....any ideas ?

http://img190.imageshack.us/img190/7721/picture52an.png

i think i need to modify this equation:

http://img190.imageshack.us/img190/5676/picture63qp.png

anyway, help would be great! :)

thanks guys & gals ;)

Sarah

[sarahisme]

nvm i got it :D