Calculating Wavelength and Intensity in Opposing Phase Vibrations

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In the discussion about calculating wavelength and intensity in opposing phase vibrations, a user seeks help with a scenario involving two decoy ducks vibrating out of phase, positioned 1.5 meters apart. The user proposes using a frequency of 1000Hz and a velocity of 10m/s for simplification. It is clarified that if the ducks are exactly out of phase, they are half a wavelength apart, leading to the conclusion that the largest possible wavelength can be found by doubling the distance between them. A suggestion is made to draw a diagram to better visualize the wave dynamics. The conversation emphasizes that the frequency and velocity do not affect the wavelength in this context.
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hey, i need some help for this question/

Question: A wave passes by two little decoy ducks which are vibraing in opposite phase. They are 1.5m apart. I've two possible wave lengths for this situation.

So I am guessing you have to make up a frequency and velocity, so i was going to use 1000Hz and velocity of 10m/s, to make things easier. Also, since its in opposite phase isn't that half a wavelength?

also does anyone know the standard intensity of a standard earthquake??
 
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Draw a picture of the wave, it'll make things easier. And yes, if they are exactly out of phase, they're half a wavelength apart (or 3/2 wavelengths, or 5/2, etc) since the question probably wants you to find largest possible wavelength (since it could get infinitely smaller) all you have to do is double the distance. The frequency and velocity don't mater, because that only changes how fast they are oscillating! Draw a picture, that'll help you see what I mean.
 
thanx a lot quantum cat, drawing it does help too! but the wavelength would be 1and3/4, not 3/2? if there out of phase.
 
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