Ask
your own question, for FREE!
Chemistry
65 Online
OpenStudy (uselesscookies):
In 1978, a 200-gram sample of cobalt-60 was buried in the Yucca Mountains, just northwest of Las Vegas, Nevada. How much of this sample was present in 2004? The half-life of cobalt-60 is 5.23 years.
Still Need Help?
Join the QuestionCove community and study together with friends!
Vocaloid (vocaloid):
amount left = original amount * (1/2)^(total time ellapsed/length of half life), make sure the units for half life and time elapsed are the same (in this case, years)
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
persephone:
The emergency notification echoed in the theater as everyone reached for their phones to discover what was interrupting their movie.
Juss1Jordan:
The way that this guy treats me make me feel wanted in this world not gonna say his name or @ cs the boy is mines .
velmalovesshaggy145:
Isnu00b4t this the opening melody to mood by 24kgoldn feat iann dior? https://voca.
persephone:
The emergency notification echoed in the theater as everyone reached for their phones to discover what was interrupting their movie.
11 hours ago
4 Replies
0 Medals
Juss1Jordan:
The way that this guy treats me make me feel wanted in this world not gonna say his name or @ cs the boy is mines .
12 hours ago
8 Replies
1 Medal
velmalovesshaggy145:
Isnu00b4t this the opening melody to mood by 24kgoldn feat iann dior? https://voca.
7 hours ago
9 Replies
2 Medals