Examlex
The end of a compass needle that points to the south pole of a magnet is the
Open Spaces
Areas of land that are not built upon, kept for either environmental purposes, recreation, or urban planning to provide light and space.
Orbitofrontal Cortex
A prefrontal cortex region in the brain involved in the cognitive processing of decision-making.
Obsessive-Compulsive Disorder
A chronic and long-lasting disorder where a person has uncontrollable, reoccurring thoughts (obsessions) and behaviors (compulsions) that he or she feels the urge to repeat over and over.
Compulsion
A repetitive and seemingly purposeful behavior performed in response to uncontrollable urges or according to a ritualistic set of rules.
Q1: The ratio of a photon's energy to
Q2: The red laser beam from a helium-neon
Q13: When long-wavelength light is seen in the
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Q78: Just as "gravity" is the study of
Q82: An electrically charged atom is an<br>A)ion.<br>B)isotope.<br>C)both of