The Decay of 514 Mg of an Isotope Is Given $A ( t ) = 514 e ^ { - 0.021 t }$

question 266

Multiple Choice

The decay of 514 mg of an isotope is given by A( $A ( t ) = 514 e ^ { - 0.021 t }$ , where t is time in years. Find the amount left after 63 years.

• A) 503 mg
• B) 134 mg
• C) 69 mg
• D) 137 mg

---

Definitions:

Emotionality

The observable behavioral and physiological component of emotion; refers to a person's intensity and frequency of emotional expressions.

McCrae and Costa

Researchers known for the Five Factor Model of personality, which identifies five broad dimensions of personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Neuroticism

A personality trait characterized by long-term tendencies to experience negative emotional states such as anxiety, anger, or depression.

Deference

The respectful submission or yielding to the judgment, opinion, or wishes of another.