half life questions

rchuloholla

Probationary Status
10+ Year Member
Jun 19, 2006
287
1
  1. Pre-Dental
    If material X had a half life of 2 years and 8 years has passed, what fraction of the material is left?

    the answer is 1/16

    first half year: 1/2 (2 years)
    second half year: 1/4 (4 years)
    third half year: 1/8 (6 years)
    fourth half year: 1/16 (8 years)

    just use ur fingers for half life.. the questions are almost always str8 forward for half life..

    GOOD LUCK! :D
     
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