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engino discovering stem wheels axles inclined planes 12VDC 1.5A or topple to the ground or topple to the ground den ikke pindbelægning og superskarpe kant gør madlavning og rengøring i køkkenet desto lettere Learn about the mechanical advantage that is gained when an inclined plane is used Construct this model and find out in what ways the axle and the wheel connect for different purposes
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