A TANK WITH A FLAT BOTTOM IS FILLED WITH WATER TO A HEIGHT OF 4 METERS.
(You can ignore atmospheric pressure when calculating your answer.)
A.4.0kPa
B.9.8kPa
C.18.9kPa
D.39.2kPa
2007-08-20 10:44:29 · 4 answers · asked by JOHNNY J S 1 in Science & Mathematics ➔ Physics
The formula for hydrostatic pressure is p*g*h, where p is the density of the liquid (1000kg/m^3 for water), g is the acceleration due to gravity, 9.8m/s^2, and h is the height, 4m.
Then
P=1000kg/m^3*9.8m/s^2*4m
P=39.2kPa.
Where 1Pa=(1kg/m*s^2).
2007-08-20 10:55:50 · answer #1 · answered by David Z 3 · 1⤊ 0⤋
Pressure = density * height * g
density of water = 1000 kg/m^3
height = 4 m
g = 9.8 m/sec^2
Answer is D.
2007-08-20 17:51:03 · answer #2 · answered by kirchwey 7 · 2⤊ 0⤋
i believe the presure at the bottom is 4 kPa. the lower the bottom of the tank is, the more presure is put on to it . if you put a nut shell a few miles below sea level, it would explode due to so much presure.
2007-08-20 17:50:48 · answer #3 · answered by coldfire_blacksheep 2 · 1⤊ 1⤋
C definitly C
2007-08-20 17:57:22 · answer #4 · answered by J T 3 · 0⤊ 0⤋