Compute the time required for the amount of cesium-137 to be one tenth of the level after contamination?

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Compute the time required for the amount of cesium-137 to be one tenth of the level after contamination?

cesium has a half life of 33 years

2007-01-04 12:03:57 · 1 answers · asked by Jaci 1 in Science & Mathematics ➔ Mathematics

1 answers

If the half-life is 33 years, then the time to reach 1/2 of its original strength is 33 years. The time to reach 1/8 is 3*33 or log2(8)* 33 years, so the time to reach 1/10 is log2(10)*33 = 3.32*33 = 108 years.

2007-01-04 12:08:51 · answer #1 · answered by firefly 6 · 0⤊ 0⤋