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OpenStudy (anonymous):
The graph below shows the radioactive decay of an isotope of uranium. Based on the graph, what is the half-life of uranium? 50 million years 100 million years 4,500 million years 9,000 million years
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OpenStudy (anonymous):
OpenStudy (jfraser):
how much time does it take for the sample to go from 100% to 50%?
OpenStudy (anonymous):
i think 4500 million?
OpenStudy (anonymous):
@JFraser
OpenStudy (jfraser):
yup
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OpenStudy (anonymous):
thanks, can you help me with another one? @JFraser
OpenStudy (jfraser):
I can try, no guarantees
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