An experimental sphere (D = 10cm) is to be submerged in deep water and reach hydrostatic equilibrium at a depth of z = 4 km. At this depth find: (a)...
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1. An experimental sphere (D = 10cm) is to be submerged in deep water and reach hydrostatic equilibrium at a
depth of z = 4 km. At this depth find: (a) the water density, (b) water pressure, (c) the sphere weight W .
Assume P = latm and p = 10' kg/m at the water-air surface, z= 0, and a constant water bulk modulus ( see Eq 1.10 )
Ev = 2.2 x 10 N/m" , to account for variable density compressibility effects. Calculate to 3 significant figures.
Approx. Ans: (a) 1300 kg/m ; (b) 500 atm ; (c) 3 N

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