They relate because the freezing of the water or the melting of the snowball are both a matter of transferring energy.
And yes, in our post-mortem of that exam, those who did not see past the red herring brought up the friction factor, as I recall the correct speed was right up there. The teacher reminded us that this was high school physics. And now I think of it, he worded the question so that the mass of the snowball was 500g at the moment it hit the wall, taking out the friction factor. But it would have made no difference, either, how densely the snowball was packed. A gram of water is a gram of water.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that�s wha
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