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Home Q & A Board Science-Related Homework Help Physics
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darla darla
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5 years ago
A certain radioactive isotope placed near a Geiger counter registers 160 counts per minute. Eight hours later, the counter registers 10 counts per minute. What is the half-life of the isotope?
A) 8 hours
B) 6 hours
C) 4 hours
D) 2 hours
E) none of the above
Textbook 
Conceptual Physics

Conceptual Physics


Edition: 12th
Author:
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celticgreencelticgreen
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5 years ago
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darla Author
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5 years ago
Thank you, thank you, thank you!
Kstan109
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This site is awesome
sleinhi
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Brilliant ツ
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