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Half Life In 60 Seconds

  1. Half Life In 60 Seconds Game
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You know, Gordon Freeman is more of a technician than a scientist. All he ever does at Black Mesa is push a cart. Question 110865: Half life question. Please help if possible. The half-life of the radioactive element plutonium-239 is 25,000 years. Blue yeti turn off playback. If 16 grams of plutonium-239 are initially present, how many grams are present after 25,000 years? 50,000 years? 75,000 years? 100,000 years? 125,000 years?

Half Life In 60 Seconds Game

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