Find person-s near point if glasses at distance from the eye
A person's lens prescription for glasses is +3 D. If the glasses sit 1.9 cm from the eye, what is that person's near point? (Assuming the glasses are designed to allow focus on an object at the normal near point of 25 cm.)
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he initial estimates were that the project would cost $250,000 would have a useful life of 9 years, zero salvage value, and would result in net annual cash flows of $46,000 per year.
If the glasses sit 1.9 cm from the eye, what is that person's near point? (Assuming the glasses are designed to allow focus on an object at the normal near point of 25 cm.)
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