Quiz1 Jan-2009

Quiz1 Jan-2009 - Quiz 1 DL # Name (last) Rubric Codes:...

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Quiz 1 DL # Name (last) (first) |___|___|___ Rubric Codes : 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 ANSWERS WITHOUT WORK WILL RECEIVE NO CREDIT. MARK YOUR ANSWERS CLEARLY. You can use a CALCULATOR y( x , t ) = y 0 +Asin( 2 π t T ± 2 x λ + φ ) v= λ /T 1) (70%) You are standing at the UC Davis Arboretum by the Putah Creek, and watching a duck floating on water. You notice that a wave crest passes by the duck every 4 seconds, and the duck is moving up and down a maximum distance of 6 cm. Waves are moving at a velocity of 0.2 m/s. Water waves are modeled by the ‘wave equation’ we have discussed in the Lecture/DLs. Write the wave equation for these waves. The general wave equation is: 2 2 y( , ) Asin( ) t x x t T = ± + . You can take phase constant ( ) to be zero. 2) (30%) Now you go to a beach in Pacifica where you see much bigger waves – the waves are 20 times as high
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Quiz1 Jan-2009 - Quiz 1 DL # Name (last) Rubric Codes:...

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