The Decay Rate of a Radioactive Sample Decreases from 175

question 73

Short Answer

The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is the mean life (time constant) of this sample?

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Definitions:

Itard

Jean Marc Gaspard Itard was a French physician noted for his work in the education and training of the "Wild Boy of Aveyron."

Aveyron

A department located in the Midi-Pyrénées region of southern France.

Developmentalists

Researchers or professionals who study the patterns of growth and development in individuals across their lifespan.

Domains

In psychology, domains refer to distinct spheres of activity or knowledge, such as cognitive, emotional, and social domains, each with its own set of skills and processes.