A moving sidewalk has a velocity of 1.7 m/s north. If a man walks south on the sidewalk at a speed of 1.1 m/s, how long does it take him to travel 15 m north in relation to a stationary observer

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

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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total distance/total time

(85 + 82)/(5+3)

167/8

20 just over