Diameter 
of 
is perpendicular to chord 
at point E. If CD = 18 and OE = 5, find the length of 
.
Definitions:
Salivation in Dogs
An automatic response that occurs in dogs when they anticipate food, famously studied by Pavlov in his classical conditioning experiments.
Nobel Prize
A set of annual international awards bestowed in several categories by Swedish and Norwegian institutions in recognition of academic, cultural, or scientific advances.
Classical Conditioning
A behavioral technique where two stimuli are systematically linked together; over time, a reaction originally elicited by the second stimulus is elicited by the first stimulus alone.
Reflex Response
An automatic, involuntary reaction to a specific stimulus, occurring without conscious thought as part of the body's defense mechanisms.
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