Please help I’m a senior trying to graduate

Work as area under curve

iron would move it is magnetic there is a mag field around the current in the wire

1 the 4 is sig

we need to know the time interval during which the force acts. impulse of force = momentum change

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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