Answer:
To calculate the pressure exerted by water at the bottom of the tank, we need to use the formula:
Pressure = Density x Gravity x Height
where:
Density = 1000 kg/m³ (density of water)
Gravity = 9.81 m/s² (acceleration due to gravity)
Height = 12 m (height of the tank)
Substituting the values in the formula, we get:
Pressure = 1000 kg/m³ x 9.81 m/s² x 12 m
Pressure = 117,720 Pa (Pascals)
Therefore, the pressure exerted by water at the bottom of the tank is 117,720 Pascals.