A Radioactive Sample Is Detected to Produce 2500 Decays Per

question 9

Multiple Choice

A radioactive sample is detected to produce 2500 decays per minute at 6:00 p.m.and 150 decays per minute at 11:00 p.m.the same day.What is the half-life of the sample?

• A)2.81 hrs
• B)0.56 hrs
• C)1.23 hrs
• D)1.77 hrs
• E)0.89 hrs

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The measurable progress or changes in individuals, typically children, across various domains of development.

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