Suppose a certain person's visual acuity is such that he can see objects clearly that form an image 3.85 um high on his retina. What is the maximum distance in km at which he can read the 80.0 cm high letters on the side of an airplane? (Assume a 2.0 cm distance between retina and lens.) km

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A: GivenW1=900 NW2=2700 N

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