Asked by Akitsuke

can someone help me on this? thanks
a viewing window 30cm in diameter is installed 3m below the surface of an aquarium tank filled with sea water. The force the window must withstand it approximately.
a. 22N
b. 218N
c. 2140N
d. 8562N
thanks
Answered by bobpursley
area of window: PI(rad^2)=.0225PI=.0707m^2

height of water above the center of the window (3.15) Pressure due to water is density*height=
10^3 kg/m^3*3.15m*9.8m/s^2 =2182N

check my thinking.
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