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Unformatted text preview: Midterm 1A DL # Name (last) (first) _________ Rubric Codes : 7 Student ID: ____________________ first 3 letters last name I certify by my signature that I will abide by the code of academic conduct of the University of California. Signature y ( x , t ) = A sin( 2 ! t T 2 ! x " + # ) + y o ; ! = v wave f ; T = 1 f ; !" = 2 #! 1 T $ % & ( ) * 2 #! x + $ % & ( ) + ! , = Even # L Constructive Odd # L Destructive . / 1 2 3 6 m 5 m 4 m 2 4 6 8 10 12 14 t [s] y [m] x = 10 m 6 m 5 m 4 m 2 4 6 8 10 12 14 t [s] y [m] x = 20 m These graphs represent a wave traveling with speed, v = 2 m/s. Use these graphs for problems 1 & 2 . 1. Explain how you determine the direction that the wave travels (toward positive or negative x). Try to stay away from pronouns (such as it) and jargon. Indicate on the graphs the features that you are using in your explanation. 2. What is the equation for this wave? Show how you determined the value of each term. Either show the calculations or indicate the values on the graphs. Midterm 1B TA Name (last) (first)...
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 Spring '12
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