The strength of a beam with a rectangular cross section varies directly as x and as the square of y. What are the dimensions of the strongest beam that can be sawed out of a round log whose diameter is d = 18 inches? See figure on right. 
Definitions:
Aggressive Impulses
Instinctual drives that lead individuals to act or react in a forceful or hostile manner.
Neo-Freudian
Psychologists who accepted the basic concepts of Freud's theory but modified and expanded upon them to include social and cultural aspects.
Freud's Theories
A set of psychological and psychoanalytical theories developed by Sigmund Freud that explore the functioning of the human mind, particularly the unconscious and its influence on behavior.
Modify Others
This term is vague but may suggest the concept of influencing, changing, or altering the behavior or characteristics of others through intervention or interaction.
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