A heavy tank contains (A) and water (B) subject to variable air pressure; the dimension shown in fig. 1-2 correspond to 1 atm. If air is slowly added from a pump to bring pressure p up to 1 MPa gage, what will be the total downward movement of the free surface of oil and air? take average value of bulk modui of elasticity of the liquids as 2050 MPa for oil and 2027 MPa for water. Assume the container does not change volume. Neglect hydrostatic pressures.
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