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A Secret Weapon For simple machine video for kids

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A wheel that sometimes includes a groove around the surface edge. This groove is for your rope or belt to move across the pulley. Flattening to the rope can carry an object connected into the rope. Operate is designed less complicated simply because pulling down over the rope is produced https://userbookmark.com/story13216759/the-2-minute-rule-for-6-simple-machines

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