Which notation is commonly used on force diagrams to show forces acting on an object?

Vectors and arrows.

Explanation:

Mathematically speaking, forces are represented by vectors, which have magnitude and direction. Graphically speaking, vectors are represented by arrows.

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um it shows links to uh so kinda microsoft website is that were ima go or no? ?

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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