The Half-Life of a Certain Radioactive Substance Is 6 Years

question 40

Multiple Choice

The half-life of a certain radioactive substance is 6 years. What is the yearly percentage decay rate for this substance?

• A) 9.08%
• B) 10.91%
• C) 11.66%
• D) 8.33%

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Definitions:

Exposure

The process of reducing fear or anxiety by gradually and repeatedly introducing the feared object or situation.

Aversion Therapy

A behavioral treatment method that uses negative stimuli to reduce the appeal of undesirable habits or behaviors.

Operant Conditioning

The learning of voluntary behavior through the effects of pleasant and unpleasant consequences to responses.

Unpleasant Stimulus

Any object, event, or situation that is undesirable or discomforting to an individual, often leading to avoidance behavior.