Radioactivity of a sample decreases 90% after 10 years. What is the half-life of the sample?Note: Radioactivity follows first order kinetics.
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Solution 1
Sure, let's solve this step by step:
First, we need to understand that the decay of radioactive substances follows an exponential decay law, which can be expressed as N = N0 * e^(-kt), where N is the final amount, N0 is the initial amount, k is the decay constant, and t is time.
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