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A 4 cm high rectangular wooden oak block of cross-sectional are 15cm2 and density 900kg/m3 floats...

A 4 cm high rectangular wooden oak block of cross-sectional are 15cm2 and density 900kg/m3 floats in water (Q=1000 kg/m3). If the block is displaced straight downward and then released, it will oscillate with simple harmonic motion. Find the period of its motion.

A) 0.15s

B) 2.0s

C) 0.38s

D) 1.4s

E) 0.91s

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