Examlex
A ball is thrown vertically upwards from a height of 7 ft with an initial velocity of 45 ft per second. How high will the ball go? Note that the acceleration of the ball is given by feet per second per second.
Dizzy Spells
Dizzy spells are episodes of dizziness or lightheadedness that can result from a variety of causes, including dehydration, low blood pressure, or inner ear disorders.
Racing Heart
An increase in heart rate that is often perceived as heartbeats that are faster than normal.
Posttraumatic Stress Disorder
A psychiatric disorder that may occur in people who have experienced or witnessed a traumatic event such as a natural disaster, a serious accident, a terrorist act, war/combat, rape, or other violent personal assault.
Natural Disaster
An event such as a flood, earthquake, or hurricane that causes significant damage or loss of life, resulting from natural processes of the Earth.
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