50 POINTS FOR REAL AND BRAINLIST IF GIVEN ANSWER AND EXPLANATION

20 joule is your answer

here

mass m =100kg

distance d=50m

acceleration due to gravity a =10m/s²

work =force×displacement

= ma/d=100×10/50=20joule

We know that,

Work = Force × Displacement.

W = ma × s [ f = ma ]

W = 100kg × 10m/s² × 50m

W = 50000 joule or 50KJ.

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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