### What is the block''s volume

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##### Reference no: EM1310042

Q1. A 67 {rm kg} swimmer climbs onto the Styrofoam block whose density is 140 {rm kg/m^ {3}}.If the water level comes right to the top of Styrofoam, what is the block's volume?

Q2. In order to clearly read a book 24 cm away, a farsighted girl needs an image to be 35 cm from her eyes. What focal length is necessary for lens in her eyeglasses?

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