Problem 1.13 An aircraft tow bar is positioned by means of a single hydraulic cylinder connected by a 25-mm-diameter steel rod to two identical arm-and-wheel units DEF. The mass of the entire tow bar is 200 kg, and its center of gravity is located at G. For the position shown, determine the normal stress in the rod
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__________ is the photochemically reactive pigment responsible for sensing light in seeds.
Fill in the blank(s) with the appropriate word(s).
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If a plane is passed through the center of a sphere, each part is a half sphere and is called a _________________.
Fill in the blank(s) with the appropriate word(s).
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The first step in the document-design process is to:
a. determine your audience b. consider the purpose of the document c. develop a content outline d. design the document
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The heat transfer process in which warm air rises and cool air falls is _____
a. convection b. radiation c. conduction d. transference
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