Erwin was measuring a radioactive substance in the laboratory. He measured 8.0 kg of substance X at noon Tuesday. At noon Friday, three days later, Erwin measured 1.0 kg of substance X. What is the half-life of substance X? Explain your answer.
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Home » Physics » Erwin was measuring a radioactive substance in the laboratory. He measured 8.0 kg of substance X at noon Tuesday. At noon Friday, three days later, Erwin measured 1.0 kg of substance X. What is the half-life of substance X? Explain your answer.