2) answer) here we have
Ptotal=Po+gh
Po=atmospheric pressure=1.013*105Pa
Ptotal=10*1.013*105pa
density of seawater=1030kg/m3
10*1.013*105pa=1.013*105pa+1030*9.8*h
9.117*105pa=10094*h
h=911700/10094=90.3 m
so the answer is 90.3 m
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