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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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Posts: 3587
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7 years ago
An air sample is contaminated with 15O, which has a half-life of 2.03 minutes. You can pass it through a long pipe to allow it to decay until it can be safely released into the atmosphere. If the speed of the gas in the pipe is 1.1 m/s, how long must the pipeline be for the sample to decay to 3.0% of its original activity?
A) 680 m
B) 8.0 m
C) 72 m
D) 250 m
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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lyalllyall
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#1
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7 years ago
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Chery Author
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#2
7 years ago
You're right again!

Appreciate it
wrote...
#3
3 years ago
thanks
Anonymous
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#4
A year ago
Help! The answer is missing an explanation...
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#5
A year ago
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