Final answer:
The pressure experienced by the teacher at the bottom of the 20ft tank filled with water is 1250.48 ft-1.
Step-by-step explanation:
To calculate the pressure experienced by your teacher at the bottom of the 20ft tank filled with water, we can use the equation p = po + pfluid. Where p is the total pressure, po is the atmospheric pressure, and pfluid is the pressure due to the weight of the fluid. The pressure due to the weight of the fluid can be calculated using the equation pfluid = ρgh, where ρ is the density of water, g is the acceleration due to gravity, and h is the depth of the fluid.
Since the tank is filled with water, the density of water is given as 1.94. The acceleration due to gravity is given as 32.2 ft/s/s. The depth of the tank is 20ft. Therefore, the pressure experienced by your teacher at the bottom of the tank can be calculated as follows:
pfluid = (1.94)(32.2)(20) = 1250.48 ft-1