A Piece of Wood Is Floating at the Surface of Some

question 9

Multiple Choice

A piece of wood is floating at the surface of some water as illustrated. The wood has a circular cross section and a height h = 3.0 cm. The density of the wood is 0.41 g/cm³. The distance y from the surface of the water to the bottom of the wood is

• A) impossible to determine because the area of the cross section is not given.
• B) 0.81 cm
• C) 3.2 cm
• D) 1.2 cm
• E) None of these is correct.

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