Assuming Birdman flies at a speed of 18 m/s, how high should Birdman fly to hit the bucket if the bucket is placed 66 m from the start of the field?

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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blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.

gravitational energy

electrical energy

kinetic energy

ligh energy