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5. (Randall 6-16): A small submarine that displaces a volume of 15 m3 is
submerged in seawater with a salinity of 34 ppt and a temperature of 16°C. The
water density is given approximately by the equation
= 1001.52 – 9.10 x 10-3 T2 – 4.09 x 10-3 TS + 8.24 x 10-1S
kg/m3
Determine the weight of the submarine when T is in degrees Celsius and S is in
parts per thousand.

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