While the apple is on the tree, it has potential energy. As soon as it begins to move, some of the potential energy is transformed into kinetic energy. When it falls down, the potential energy transforms more and more; shortly before the apple hits the ground, there is merely potential energy left, it all transformed into kinetic energy.
And always keep in mind, the potential energy doesn’t disappear! Energy always just transforms
Answer:
(A). suddenly; gradually
Explanation:
A psychological or mental disorder is a condition that causes impaired mental behaviors and is characterized by unexpected cultural reactions to situations.
In <u>acute onset mental disorders, symptoms occur </u><u>suddenly</u><u>, while in insidious onset mental disorders, symptoms occur </u><u>gradually</u><u>.</u>
Nowadays, and after fresh water, <em>Sand</em> is the most used natural resource on the planet.
Sand is a loose, fragmented material, comprised of tiny particles of scattered rocks, shells, corals and other minerals.
The most common sand is comprised of <em>quartz</em> and feldspar, which are high in silica content, stuffs used to make glass; and to produce semiconductor silicon chips for microprocessors.
Sand is the raw material used to produce integrated circuits and the glass for contact lenses.
And Sand processing has grown into a multi billion dollar business, turning the role of Sand in our lives widespread farther away our beloved beaches.
Answer:
<h3>The United States has a complex government system. ... the community structure of an ancient Greek polis, or city-state . ... They chose to structure the United States</h3>
In the years from 1900 to the present, life expectancy in the United States has drastically increased.
The tremendous increase in life expectancy during the last century may be the greatest human achievement.
In the 110 years between 1900 and 2010, the United States' life expectancy at birth increased from 47.3 to 78.7 years (Centers for Disease Control and Prevention/National Center for Health Statistics [CDC/NCHS], 2012, 2013). Declines in infectious diseases and fatalities disproportionately among the young caused this longer lifespan. After infectious diseases accounted for the majority of deaths, the leading causes of mortality were cancer and cardiovascular diseases. In the second half of the 20th century, these then became the focus of science and medicine.
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