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1. How did the resistance force relate to the effort force for the fixed pulley alone? How did the resistance force relate to the effort force when you added a movable pulley to the fixed pulley? How does the mechanical advantage compare with the slope of the line for each pulley? Explain using your data.

2. 2. How did the work output relate to the work input for the pulleys? Explain using your data

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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