Science question james and toby are running in a 100 m race. james' velocity is 10 m/s to the right and toby's velocity is 8 m/s to the right. which of the following statements is true? 1. james will finish the race before toby. 2. in a position time graph, james' slope would be steeper than toby's slope. 3. if toby runs at a constant velocity, the sizes of the arrows in a vector graph will all be the same. 4. all of the above.

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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