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A boy is rafting on a pond when his Rubik's Cube with a side length of...

A boy is rafting on a pond when his Rubik's Cube with a side length of 10.cm and a uniform density of 0.78g/cm 3 is accidentally knocked into the water. Identify the height of the Rubik's Cube that will float above the surface. (Water density = 1.00g/cm 3)

A. 7.8cm

B. 6.4cm

C. 5.0cm

D. 2.2cm

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