Continuing from problem 1, let's continue to push this approximation. let's look at l = 100 cm and x = 10 cm (note that we now have x is 10% of l, does our approximation that still hold? ) what is the relative error of the approximation now? note: do not convert to a percentage or use scientific notation! use the result from the equation directly! example: if your calculator returns 1*10-3 or 1e-3 write 0.001

gravity

explanation:

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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54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y