A Fixed Pulley: When a pulley ishingedto a fixed support, it is a fixed pulley. A fixed pulley does not mean that it cannot move. It just cannot move up and down with the rope, but it it is free to rotate around the fixedpivot. The figure above shows a fixed pulley. A Movable ...
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Experiment with a double-pulley system. This is basically the same, but works with less effort from the operator of the pulley. Take two spools instead of one and run a cord around them, tying the ends together to create a loop. Put a pencil through the spools and affix the pencils to...
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How does a Dynamic Pulley System work? A Dynamic Pulley System works by using two or more pulleys connected by a rope or belt. The input force is applied to one end of the rope, creating tension that is transmitted through the pulleys. As the rope passes through each pulley, the force ...
If you open up a dryer, one surprising thing is the lack of any gears on the tumbler. It turns out that the tumbler is one giant gear (or actually a pulley), and the motor drives a tiny pulley. Because of the ratio between the huge tumbler diameter and the tiny motor pulley diameter...
A drive pulley is attached to the rotor shaft on the front of the alternator. When the engine is running, the crankshaft turns the drive belt, which in turn spins the pulley on the rotor shaft. In essence, the alternator transfers the mechanical energy from the engine into electrical power...
Work is calculated by multiplying the force by the distance. There are two different kinds of machines: simple and complex machines. Simple machines include the pulley, lever and wedge, to name a few. Complex machines include two or more simple machines. ...
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It works just like a pencil eraser, but it rubs ink away instead of pencil. Another option is to use a correction fluid like Liquid Paper or Tippex (effectively a quick-drying white paint that covers up your mistakes). When electric typewriters appeared, they offered a much more convenient...