Examlex
Solve the problem.
-On a circle of radius 18 meters, how long is an arc that subtends a central angle of radians?
Alcohol
A psychoactive substance found in drinks such as beer, wine, and spirits that can alter consciousness and impair cognitive and psychomotor functions.
Voluntary Movement
Movement that is under conscious control, including actions like walking, talking, or picking up objects.
Parkinson's Disease
A degenerative disorder of the central nervous system that affects movement, often including tremors.
Stimulant Drug
A substance that increases alertness, attention, and energy by raising the levels of key chemicals in the brain and body.
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