Consider 250g of iodine which decomposes at a rate proportional to the amount present. Around 150g of iodine decomposes in 10.5754 days. What is the proportionality constant k?What is the half-life of iodine?After how many days will there be 143g of iodine left?

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A: Let's find.

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Q: (a) In a certain culture of bacteria the rate of increase is proportional to the number present. (i)…

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A: Let the number of infected people at time t be:  P Therefore: dPdt=kP(500000-P)

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A:

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A: Here initial amount A0=4000g Decaying rate λ= 3.15% = 0.0315 Let amount remains in 190 years= A(t)

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A: Explanation of the answer is as follows

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Q: A tumor is injected with 0.7 grams of Iodine-125, which has a decay rate of 1.15% per day. To the…

A: The exponential function A = P * (1 - r)t  where A is the final amount and P is your inital amount.…

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