ih8science Posted August 4, 2007 Share Posted August 4, 2007 The half-life of gold-198 is 2.7 days. After _______ days, 1/4 of the original amount of gold-198 will remain. Link to comment Share on other sites More sharing options...
iNow Posted August 4, 2007 Share Posted August 4, 2007 Well, if half of the gold is gone every 2.7 days, how many days will it be until 75% of it is gone? Link to comment Share on other sites More sharing options...
Daecon Posted August 5, 2007 Share Posted August 5, 2007 It depends on how expensive the Gold-198 is. The length of time is inversely proportional to the value of the metal. Link to comment Share on other sites More sharing options...
the tree Posted August 5, 2007 Share Posted August 5, 2007 Please do my .... homework for meNo. What the hell do you expect to learn from having someone do your homework for you. The question isn't very hard. Just consider how many half-lives it takes for a quarter (of anything) to remain. It depends on how expensive the Gold-198 is. The length of time is inversely proportional to the value of the metal. :D Link to comment Share on other sites More sharing options...
uhbthm Posted August 15, 2007 Share Posted August 15, 2007 2.7x2. why? 2.7 days 50%, reduce 50% by another half life reduce that to 1/4 Link to comment Share on other sites More sharing options...
swansont Posted August 15, 2007 Share Posted August 15, 2007 2.7x2.why? 2.7 days 50%, reduce 50% by another half life reduce that to 1/4 Perhaps you missed the "For assistance with (but not answers to) homework problems." disclaimer on the top level. The poster generally learns very little by having the work done for them. Link to comment Share on other sites More sharing options...
AL Posted August 15, 2007 Share Posted August 15, 2007 Perhaps you missed the "For assistance with (but not answers to) homework problems." disclaimer on the top level. The poster generally learns very little by having the work done for them. Well, the OP's handle is "ih8science," so s/he is kind of hopeless anyway. Link to comment Share on other sites More sharing options...
Klaynos Posted August 15, 2007 Share Posted August 15, 2007 Well, the OP's handle is "ih8science," so s/he is kind of hopeless anyway. Not the point, it devalues the forums for one thing, and if they can't be bothered to work, and don't listen to the help, maybe they don't deserve to pass the homework? Link to comment Share on other sites More sharing options...
AL Posted August 15, 2007 Share Posted August 15, 2007 Oh, I wasn't suggesting we should give out answers to homework. I was just joking about the OP's name being more indicative of non-learning than the fact that an answer had been given. Link to comment Share on other sites More sharing options...
Klaynos Posted August 15, 2007 Share Posted August 15, 2007 Oh, I wasn't suggesting we should give out answers to homework. I was just joking about the OP's name being more indicative of non-learning than the fact that an answer had been given. OK, I miss interpreted Link to comment Share on other sites More sharing options...
Genecks Posted August 17, 2007 Share Posted August 17, 2007 The half-life of gold-198 is 2.7 days. After _______ days, 1/4 of the original amount of gold-198 will remain. This topic is very interesting and contemporary. It coincides with my current topic. Also, it's totally not cool to ask people to do your homework about half-life. Anyone who has a grasp of atomic science knows that it's powerful stuff, and it's very much worth learning, especially when you're walking around a place that was recently nuked. Link to comment Share on other sites More sharing options...
uhbthm Posted August 21, 2007 Share Posted August 21, 2007 sorry Link to comment Share on other sites More sharing options...
fattyjwoods Posted August 21, 2007 Share Posted August 21, 2007 just try a bit. Link to comment Share on other sites More sharing options...
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