Well, I have had a fairly uneventful weekend (too much homework!) so when I remembered I had to do a Physics journal, I was quite at a loss for what to write about. Thankfully, I ran the wash yesterday so I'm going to write about the centripetal force in my washing machine. Unfortunately, I wasn't thinking about taking a picture of the wash so I only have pictures of the empty washing machine.
Anyway, the washing machine utilizes centripetal force during the spin cycle to remove excess water from your clothes so that they aren't dripping wet when you take them out. To do this, the little holes all along the sides of the washer are opened and as the washer continues to spin, centripetal force drives the water out. The water is small enough to fit through the holes and are therefore thrown out tangent to the circle by a lack of a normal force. As a result, all that is left in the washer are your slightly damp clothes which could not possibly escape through the holes.So, that was my pretty lame journal for this weekend and now I have to go finish all the other homework that has caused my very uneventful weekend. Hopefully next time I will have a more recent physics concept to write about.
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