Phys205A_Lecture34

Physics for Scientists & Engineers with Modern Physics (4th Edition)

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Chapter 14 Fluid Mechanics Chapter 14 (Fluid Mechanics) Questions: 3 and 14 Problems: 3, 6, 16, 23, and 31 Due Wednesday Dec 3
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States of Matter z Solid z Has a definite volume and shape z Liquid z Has a definite volume but not a definite shape z Gas – unconfined z Has neither a definite volume nor shape
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States of Matter, cont z All of the previous definitions are somewhat artificial z More generally, the time it takes a particular substance to change its shape in response to an external force determines whether the substance is treated as a solid, liquid or gas
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Fluids z A fluid is a collection of molecules that are randomly arranged and held together by weak cohesive forces and by forces exerted by the walls of a container z Both liquids and gases are fluids
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Statics and Dynamics with Fluids z Fluid Statics z Describes fluids at rest z Fluid Dynamics z Describes fluids in motion z The same physical principles that have applied to statics and dynamics up to this point will also apply to fluids
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Forces in Fluids z Fluids do not sustain shearing stresses or tensile stresses z The only stress that can be exerted on an object
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Phys205A_Lecture34 - Chapter 14 Fluid Mechanics Chapter 14...

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