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Q. In order to clearly read a book 26 cm away, a farsighted girl needs an image to be 47.00cm from her eyes. What focal length is needed for the lens in her eyeglasses?

Q. A 82 person sits on a 3.8 chair. Each leg of the chair makes contact with the floor in a circle that is 1.4 in diam. Determine out the pressure exerted on the floor by each leg of the chair, Assume the weight is evenly distributed.

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Category:- Physics
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