In a physics experiment, Ingrid, the ice skater, spins around in the rink at 1.2 m/s with each of her arms stretched out 0.70m from the center of her body. In each hand she holds a 1.0kg mass. If angular momentum is conserved, how fast will Ingrid beging to spin if she pulls her amrs to a position 0.15m from the center of her body?

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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the components of a vector are the parts of the vectors that are to each other.

b perpendicular

at right angles to each other