MECHANICS - WORK AND ENERGY - SIMPLE MACHINES	Order
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Description: One and two pulley systems can be hung from a ringstand and used to raise weights. Use a spring scale to find the mechanical advantage. Parts: pulley systems, rack of masses, Newton Meter Purchased/Built: purchased Quant. in Demo Room: 1 Source: Central Scientific Demo References Sutton M-45 Demonstrate what you have.
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