Physics - Fluids
posted by Peter on .
A cylindrical diving bell 3.0 m in diameter and 4 m tall with an open top of 25 degrees celsius, and the air temp 220 down is 5 degrees celsius. The density of seawater is 1025 kg/m^3. How high does the sea water rise in the bell when the bell is submerged?
solve for the new volume of air in the bell..
Then the height will be (V1-V2)/V1 *4m
Temps have to be in Kelvins.
To get pressure, consider a column 1 m^2.
The weight of that column is 1m^2*height*density*g
so pressure at the 220m down is
P2=101.3kpa+220*densityseawater*g Pa and
P2=101.3kPa+.220*density*9.8 in kPa