Two parallel long wires carry the same current and repel each other with a force F per unit length. If both of these currents are tripled and the wire separation is doubled, what is the new force per unit length

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

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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