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If Superman really had x-ray vision at 0.13 nm wavelength and a 4.1 mm pupil diameter, at what maximum altitude could he distinguish villains from heroes, assuming that he needs to resolve points separated by 5.2 cm to do this?
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If Superman really had x-ray vision at 0.13 nm wavelength and a 4.1 mm pupil diameter, at what maxim...
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