Multiple Choice
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
Correct Answer:
Verified
Correct Answer:
Verified
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