Write the Word or Phrase That Best Completes Each Statement $3.4 \times 10 ^ { 9 } \mathrm { yr }$

question 248

Multiple Choice

Write the word or phrase that best completes each statement or answers the question.
-The half-life of an element is $3.4 \times 10 ^ { 9 } \mathrm { yr }$ . How long does it take a sample of the element to decay to $\frac { 2 } { 5 }$ of its original mass? Use $A = A _ { 0 } ( 0.5 ) ( t / T )$ where $A _ { 0 }$ is the initial amount, $T$ is the half-life, and $t$ is the time. (Express results in scientific notation, rounded to the nearest hundredth.)

• A) \(2.16 \times 10 ^ { 9 } \mathrm { yr }\)
• B) \(7.59 \times 10 ^ { 8 } \mathrm { yr }\)
• C) \(4.49 \times 10 ^ { 9 } \mathrm { yr }\)
• D) \(2.58 \times 10 ^ { 9 } \mathrm { yr }\)

Understand different language acquisition phenomena, including under-extension and overextension.

Recognize the developmental milestones and theories in language acquisition, such as babbling and the nativist theory.

Identify and explain the cognitive processes involved in problem-solving strategies.

Describe the role of metalinguistic awareness in language understanding and humor.

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Definitions:

Gestalt Psychology

A theory of mind and brain positing that the operational principle of the brain is holistic, parallel, and analog, with self-organizing tendencies; or, the idea that the whole is greater than the sum of its parts.

Cognitive

Relating to mental actions or processes involved in gaining knowledge and comprehension, including aspects such as awareness, perception, reasoning, and judgment.

Behavioral

Related to or involving actions and observable behaviors as a means to study psychological processes and disorders.

Humanistic

An approach in psychology that emphasizes the study of the whole person, focusing on subjective experience and inherent growth potential.