Practice Problem: Radioactive Half-Life

Professor Dave explains the concept of radioactive half-life using Cobalt-60, which decays to Nickel-60 with a half-life of 5.27 years. The video covers calculating the decay constant using the natural log of 2 and determining the fraction of Cobalt-60 nuclei remaining after 15 years. The decay constant is found to be 0.132 years^-1, and the fraction of nuclei remaining after 15 years is 13.8%.

Explain the expression NT = N0e^(-λt) in the context of radioactive decay.

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What does N0 represent in the decay equation?

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