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The Principal is a 1987 action thriller film starring Jim Belushi, Louis Gossett Jr. and Rae Dawn Chong. Written by Frank Deese and directed by Christopher Cain, it was filmed in Oakland, California, and at Northgate High School in nearby Walnut Creek and distributed by TriStar Pictures on Panavision. Belushi reprised his role as Rick Latimer ...
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James Stewart Tolkan (born June 20, 1931) is an American actor. He is best known for his roles as Mr. Strickland in Back to the Future (1985) and Back to the Future Part II (1989), and as Marshal Strickland in Back to the Future Part III (1990). Other memorable film roles include Love and Death (1975), Top Gun (1986), Masters of the Universe ...
Mohr's circles for a three-dimensional state of stress. Mohr's circle is a two-dimensional graphical representation of the transformation law for the Cauchy stress tensor . Mohr's circle is often used in calculations relating to mechanical engineering for materials' strength, geotechnical engineering for strength of soils, and structural ...
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Radical symbol. In mathematics, the radical symbol, radical sign, root symbol, radix, or surd is a symbol for the square root or higher-order root of a number. The square root of a number x is written as. while the n th root of x is written as. It is also used for other meanings in more advanced mathematics, such as the radical of an ideal .
Square root. Notation for the (principal) square root of x. For example, √ 25 = 5, since 25 = 5 ⋅ 5, or 52 (5 squared). In mathematics, a square root of a number x is a number y such that ; in other words, a number y whose square (the result of multiplying the number by itself, or ) is x. [1] For example, 4 and −4 are square roots of 16 ...
History. The Goldwater–Nichols Act was an attempt to fix problems caused by inter-service rivalry, which had emerged during the Vietnam War, contributed to the catastrophic failure of the Iranian hostage rescue mission in 1980, and which were still evident in the invasion of Grenada in 1983. [1] [2] Such problems existed as well in World War ...