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course Phy 202
11/11/10 2:47 pm
Watch the KEx and KEy values as they change with each collision, representing the total x and y kinetic energies of the particles. ***The KEx and KEy fluctuate quickly going up and down. It seems that the values decrease when the particle collides with another.***
Watch the 'red' particle for a couple of minutes, estimating the average time between its collisions and its average speed (one of the speeds given near the top of the screen corresponds to that of the 'red' particle--which is it?).
***The red particle is moving very quickly and seemed to have a collision about every three seconds. I was confused as to which value was the red particle's. i thought maybe it was the larger value estimating the number of collisions the particle was undergoing per segment.***
Watch the 'blue' particle, and speculate on what property of this particle is different from that of the other particles.
***The blue particle is the slowest moving particle on teh screen. It moves much slower than the red particle. This particle is probably a much larger or much heavier particle than the red one.***
Watch as the 'red' particle sometimes turns yellow. What causes this? What property does the particle have when it is yellow?
***When the yellow ring collides with the red particle, the red particle becomes much much quicker and speeds across the screen. The yellow particle may represent some sort of a force or catylast that boosts the speed of the red particle.***
What might the graphs represented at the right of the screen represent?
***I am really not sure what the graphs represent. They might be the number of collisions of the red and blue particles. They may represent the KEx and KEy values vs time. This is the only guess I can make given no more information. "
&#Good responses. Let me know if you have questions. &#
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