@Xolare: Anyway, i want to know peoples opinion on Yoichi Wada, should he get fired from SE
It's a little known fact that the key to initiating a discussion on a so called "discussion forum" is to post the topic of conversation in the original post, not several posts down.
@example1013: I apologize if you were joking, but the question says how long will it take to decay to99.9999% of its original value, not how long will it take for 99.9999% of it to decay. Thus the result makes sense, since we're only asking how long it will take for a very small portion to disappear (namely .0001% of it).
Ahah! You guys scared me for a second.
@Dedodido I'm also pretty sure my formula works, too. I have starting mass, time, intervals, etc. The decay constant is based off the variable.
As seraphim said, you're using a linear relationship to model an exponential one. The natural exponential is the only way to do it, it's just one of those things that pops up all over nature, that's why it's called the "natural" exponential.
@ItBeStefYo: Is there a particular area you're finding troublesome? I'm in my fourth year studying physics at university, got my final exam on tuesday, perhaps I can be of some help.
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