Unformatted text preview: Quiz 1 SQ 2010 C/D DL Section Grade 4910 Last 6 digits of student
ID Last name First name First 3 letters of last
name Two buoys ﬂoat on the surface of a river as a sinusoidal wave travels down the river (the two buoys are each
fixed by rope to the bottom of the river so they just bob up and down at the same location on the river) A
picture of the river and the two buoys is taken at a time t— — O and IS shown below (the buoy on the right 1s
halfway between its highest and lowest points and the buoy on the left 1s at its highest point). In the next 0 73 after the picture was taken the buoy on the right drops down 1. 3m to its lowest point. <—————27m _———————> W a) Determine the direction (left or right) that the wave is traveling and explain how you decided this. We 0W3 T314 TAM. H"? ’9‘40‘1/ M The ﬂight?” 30:) down
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b) Find the speed of the wave and explain how you found this. '_ _
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0) Write an equation for the time dependence of the height of the buoy (MW that the
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 Spring '10
 Neal/James

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