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A piece of wood with a density of 766 kg/m3 is tied with a string to the bottom of a water-filled flask. The wood is completely immersed, and the tension in the string is 0.79 N.
(a) What is the volume of the wood?(b) If the string breaks and the wood floats on the surface, does the water level in the flask rise, drop, or stay the same?
(c) Assuming the flask is cylindrical with a cross sectional area of 65 cm2, find the change in water level after the string breaks.
Even as exploring a sunken ocean liner, principal researcher found the absolute pressure on the robot observation submarine at the level of the ship to be about 413 atmospheres. The density of seawater is 1025kg/m^3.
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