Question 25 Radioactive Substance Decays According Formula Ao Ekt Ao Initial Amount Substa Q28169340

Question 25 A radioactive substance decays according to the formula A = Ao ekt where Ao is the initial amount of substance (in grams) A is the amount of substance (in grams) after t years k is a constant. The half-life of the substance is 10 years. If we begin with 20 g of the substance, how much will left after 5 years? va grams 2. 20grams 3. 20/2 grams 4. 5 grams 5. 20e grams 1. 20 TOTAL: [100

Question 25 A radioactive substance decays according to the formula A = Ao ekt where Ao is the initial amount of substance (in grams) A is the amount of substance (in grams) after t years k is a constant. The half-life of the substance is 10 years. If we begin with 20 g of the substance, how much will left after 5 years? va grams 2. 20grams 3. 20/2 grams 4. 5 grams 5. 20e grams 1. 20 TOTAL: [100 Show transcribed image text Question 25 A radioactive substance decays according to the formula A = Ao ekt where Ao is the initial amount of substance (in grams) A is the amount of substance (in grams) after t years k is a constant. The half-life of the substance is 10 years. If we begin with 20 g of the substance, how much will left after 5 years? va grams 2. 20grams 3. 20/2 grams 4. 5 grams 5. 20e grams 1. 20 TOTAL: [100

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