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Unformatted text preview: 2) This experiment illustrates radioactive decay in that the curve approximates an exponential decay. The number of undecayed nuclei falls to roughly ¼ its initial value after 2 half-lives, and then to roughly 1/8 its initial value after 3 half-lives, etc. Board Questions 1) I predict that there must be 7 tosses before there are no heads left. 2) Qualitatively, if you used a 6-sided dice and if a toss of a “5” meant an atom decayed… a. The percent probability that any given toss would yield a decayed atom is about 17%. b. To have a chance that 100 “radioactive” dice would have decayed, 25 tosses would be needed. Every time you roll the dice, most likely, 5/6 of them will not have a 5 on it....
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This note was uploaded on 08/30/2011 for the course PHYS 10 taught by Professor Vaughn during the Summer '09 term at West Valley.
- Summer '09