1. The depth of the pacific ocean in the mariana trench is 11 km. what is the pr
ID: 1380721 • Letter: 1
Question
1. The depth of the pacific ocean in the mariana trench is 11 km. what is the pressure at this depth (density of sea water is 1.025*103 kg/m^3)
2. The volume of an iceberg is 2800 m3. The density of seawater is 1.025*103 kg/m3. The density of ice is 0.917*103 kg/m3. a) what is the mass of the iceberg assuming it is pure ice? b) what volume of seawater does it displace when floating? (in other words, what is the volume that's underneath the seawater) c) what is the volume of the part of the iceberg above the surface of the water?
Explanation / Answer
P = p*g*H
= 1.025 *10^3 *9.8 *11000
= 110.49 MPa or 1105 Bar
A. mass of iceberg = V*density
= 2800 *0.917 *10^3
= 2567600 kg
= 2.5676 *10^6 kg
B.volume of water displaced = V*pw
2.5676 *10^6 = V*1.025*10^3
V = 2504 m^3
C. Volume above water = 2800 -2504
= 296 m^3
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