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A cube of cork with side lengths 0.06 m and density of 288 kg/m^3 is suspended...

A cube of cork with side lengths 0.06 m and density of 288 kg/m^3 is suspended under water w/ the top of the cube at a depth of 1 m below the surface.

a. What is the acceleration when the cork is released?  

b. If this piece of cork is instead floating on the surface, how much of the cork is below the surface?

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