Find the mass and the center of mass of the lamina occupying the region R, where R is the region bounded by the graphs of 
and having the mass density 
Definitions:
Emerging Adulthood
A phase of the life span between adolescence and full-fledged adulthood, characterized by exploration, instability, self-focus, and a feeling of being in-between.
Jeffrey Arnett
is a psychologist known for his work on emerging adulthood, a theorized phase of development between adolescence and full-fledged adulthood.
Postformal Thought
A stage of cognitive development beyond Piaget's formal operational stage, characterized by an understanding that truth may vary from situation to situation and the ability to integrate emotion with logic.
Prefrontal Cortex
A region of the brain associated with decision making, social behavior, and personality.
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