Intermediate Mechanics Quiz - PHYS2330 - Prof. James J. Napolitano, Quizzes of Mechanics

Download Intermediate Mechanics Quiz - PHYS2330 - Prof. James J. Napolitano and more Quizzes Mechanics in PDF only on Docsity! Name: PHYS2330 Intermediate Mechanics Quiz 22 Nov 2010 This is a closed book quiz! Write the best choice in the space next to the question. 1. A sound wave propagates in an inviscid fluid. Which of the following is not true? A. The wave can have transverse components. B. The wave can have longitudinal components. C. The speed of the wave depends on the density of the fluid. D. The speed of the wave depends on the bulk modulus of the fluid. E. The wave consists of small deviations of pressure and density from equilibrium. 2. A column of water is ten meters high. The difference in pressure between the bottom of the water column and the top is closest to which of the following? (The density of water is 1000 kg/m3.) A. zero. B. 10 Pa C. 103 Pa D. 105 Pa E. 107 Pa 3. In a certain coordinate system, the matrix representation of a stress tensor in a continuous medium has Σxy = Σyx = σ while all other elements are zero. The force on an area element dA lying in the xz plane is A. zero. B. σdAx̂ C. σdAŷ D. σdAẑ E. σdA(x̂ + ŷ)/ √ 2