A fisherman notices that one wave passes the bow of his anchored boat every 3 seconds. He measured the wavelength to be 8.5 meters. How fast are the waves traveling?

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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answer///isobars;