Examlex
Calculate the amount of energy released by converting four hydrogen atoms into one helium atom.The mass of a hydrogen atom is 1.67 × 10⁻²⁴ kg; the mass of a helium atom is 6.65 × 10-²⁴
g. The speed of light is 3 × 10⁸ m/s.
REM Sleep
A sleep phase characterized by rapid eye movement, during which vivid dreams commonly occur.
Mentally Ill
Refers to individuals suffering from mental disorders that affect their thinking, mood, and behavior.
Sleep Cycle
A progression through various stages of sleep including light sleep, deep sleep, and REM (Rapid Eye Movement) sleep, typically recurring several times throughout the night.
Sleepwalks
The act of walking or performing other complex behaviors while not fully awake, typically occurring during the deep stages of sleep.
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