Examlex
An airplane needs to reach a forward velocity of 203.0 km/h to take off. On a 2000-m runway, what is the minimum uniform acceleration necessary for the plane to take flight if it starts from rest?
Thirty-Eighth Parallel
A line of latitude that is often referred to as the pre-Korean War boundary between North Korea and South Korea.
Defensive Alliance
An agreement between nations to provide mutual support in case one of them is attacked by a third party.
West Germany
The informal name for the Federal Republic of Germany during the period from its formation in 1949 until German reunification in 1990, contrasting with East Germany, the German Democratic Republic.
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