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A 2m3 block of wood breaks off an ancient submerged ship at a depth of 1km...

A 2m3 block of wood breaks off an ancient submerged ship at a depth of 1km on the floor of a sea. The specific gravity of wood is 0.9 and that of seawater is 1.03.

a)What is the magnitide of the acceleration of the block of wood before it reaches the top of the sea?

b)What is the net work done on the block of wood as it moves up a distance of 1km from the bottom of the sea to the surface of the water?

c)After the block of wood gets to the top of the water surface, it remains afloat. What is the volume of the part of the block of wood that remains submerged as it floats?

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