Examlex
What is the Doppler effect,and how is it produced? Cite two examples.
Amplitude
The extent of a vibratory movement, measured from the position of equilibrium to the highest point of the wave, indicating the strength or intensity of a wave phenomenon.
Voluntary Muscle Activity
Muscle movements that are consciously controlled by the brain, typically involving the skeletal muscles.
NREM Sleep
Non-Rapid Eye Movement sleep, which is characterized by slower brain waves and is considered restorative sleep.
REM Sleep
REM sleep, or Rapid Eye Movement sleep, is a stage of sleep characterized by fast eye movements, vivid dreams, and increased brain activity.
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