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If you have a sample containing 400 nuclei of a radioisotope and only 25 nuclei remains after one hour what is the half life
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Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points
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If you have a sample containing 400 nuclei of a radioisotope and only 25 nuclei remains after one ho...
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