Apaperweight is made of a solid glass hemisphere of index of refraction 1.55. the radius of the circular cross section is 5.0 cm. the hemisphere is placed on its flat surface, with the center directly over a 1.5 mm long line drawn on a sheet of paper. what length of line is seen by someone looking vertically down on the hemisphere?
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Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)
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Apaperweight is made of a solid glass hemisphere of index of refraction 1.55. the radius of the circ...
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