- #1
JDiorio
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Homework Statement
At present, the concentration of uranium 235 in naturally occurring uranium deposits is approximately 0.77%. What will the concentration be one billion years from now?
Homework Equations
N(t) = No e^ -(ln(2)/half-life)t
The Attempt at a Solution
i attempted this problem and got an answer of .69%.. What i did was put XNo= .77No e^ -(ln(2)/half-life)t .. that was the No can cancel out.. and then I just solved for X.. I feel like I am close but just making a slight mistake.
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