A block of wood of length \[40\,\,cm\] and area of cross section \[15\,\,c{{m}^{2}}\] floats in water with \[3/8\] of its length above water. What is the density of wood? (density of wafer \[=1\,\,g\,\,c{{m}^{-3}}\])

A block of wood of length \[40\,\,cm\] and area of cross section \[15\

1.	A block of wood of length \[40\,\,cm\] and area of cross section \[15\,\,c{{m}^{2}}\] floats in water with \[3/8\] of its length above water. What is the density of wood? (density of wafer \[=1\,\,g\,\,c{{m}^{-3}}\])
A.	\[0.256\,\,g\,\,c{{m}^{-3}}\]
B.	\[0.526\,\,g\,\,c{{m}^{-3}}\]
C.	\[0.625\,\,g\,\,c{{m}^{-3}}\]
D.	\[0.650\,\,g\,\,c{{m}^{-3}}\]
Answer» D. \[0.650\,\,g\,\,c{{m}^{-3}}\]

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A block of wood of length \[40\,\,cm\] and area of cross section \[15\,\,c{{m}^{2}}\] floats in water with \[3/8\] of its length above water. What is the density of wood? (density of wafer \[=1\,\,g\,\,c{{m}^{-3}}\])

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