Two blocks, with masses M1 = 1.20 kg and M2 = 10.90 kg, and a spring with spring constant k = 417 N/m are arranged on a horizontal, frictionless surface as shown in the Figure. The coefficient of static friction between the two blocks is 0.540. What is the maximum possible amplitude of the simple harmonic motion if no slippage is to occur between the blocks?

v 154.9= 0.9 length length s little over 154.9cm

neither accurate nor precise.

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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