Questions:

  1. Initially, there are 300 grams of a particular radioactive substance. Using the formula, how many grams are left at the 10-year point? Run the application and try stopping it at the 10-yr. mark.

    Answer

  2. Assume the decay of another radioactive substance is given by A = 300(e–0.03t). To do this, you will need to change the coeffienct in front of t to – 0.03. If there are initially 300 grams of this substance, how much is left at the 10-year point?

    Answer

  3. Which substance, from problem #1 or #2, has a longer half-life period and by how much?

    Answer

  4. Which substance, from problem #1 or #2, will be the first to decay completely?

    Answer

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