Question: Part 2. Radioactivity and Half-Life Problems Using Calculus (16 marks) A. A 30-kg sample of Plutonium-239 will decay by 1 kg in 1,180 years.

Part 2. Radioactivity and Half-Life Problems Using Calculus (16 marks) A. A 30-kg sample of Plutonium-239 will decay by 1 kg in 1,180 years. Determine the half-life of the radioactive element. (Rubric. 6 marks) B. Cobalt-60 has a half-life of 5.3 years. If an old sample of 10 g have now decayed to 1 g, how much time had passed? (Rubric, 5 marks) C. Determine how much of a 100-g sample is present after 250 years if the half-life of Uranium-232 is 68.9 years. (Rubric, 5 marks)

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