quiz4aq - Physics 2C, Waves ...Optics-- Winter 2007...

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Unformatted text preview: Physics 2C, Waves ...Optics-- Winter 2007 Instructor: B. Grinstein Quiz # 4 INSTRUCTIONS: Fill, tear and return the bottom strip of the front page with your scantron. Keep the top portion of the front page and the rest of the quiz. Use a pencil #2 to ll your scantron. Write your code number and bubble it in under EXAM NUMBER. Bubble in the quiz form (see letter A-- D at bottom of page) in your scantron under TEST FORM 1) A valve is closed and the uid within a pipe is stationary. When the valve is opened, uid ows through the pipe. What happens to the pressure in the pipe when the valve is opened? A) The direction of the pressure change depends on the density of the uid. B) The pressure decreases. C) The pressure remains the same. D) The direction of the pressure change depends on the direction of the uid ow. E) The pressure increases. 2) A pressurized cylindrical tank, 5.0 m in diameter, contains water which emerges from the pipe at point C, with a velocity of 29 m/s. Point A is 10 m above point B and point C is 3 m above point B. The area of the pipe at point B is 0.05 m 2 and the pipe narrows...
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quiz4aq - Physics 2C, Waves ...Optics-- Winter 2007...

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