Atank with a flat bottom is filled with water to a height of 4 meters. what is the pressure at any point at the bottom of the tank? (you can ignore atmospheric pressure when calculating your answer.)
a. 18.9 kpa
b. 9.8 kpa
c.39.2 kpa
d. 4.0 kpa

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)