CALC A uniform disk with radius R = 0.400 m and mass 30.0 kg rotates in a horizontal plane on a frictionless vertical axlethat passes through the center of the disk. The angle through which the disk has turned varies with time according to 6(t) =(1.10 rad/s)t + (6.30 rad/52)tz What is the resultant linear acceleration of a point on the rim of the disk at the instant whenthe disk has turned through 0.100 rev?

f is prop to m1xm2 double m1 double force

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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