Final answer:
The pressure on a submerged brick with the long edge vertical is the same on all sides and depends on the depth of the water and the properties of the fluid.
Step-by-step explanation:
The pressure on a brick that is totally submerged in water with the long edge vertical is the same on all sides of the brick. This is because pressure acts equally in all possible directions. The pressure is determined by the weight of the water above the brick, and it increases linearly with depth.
For example, if the average depth of the water is 40.0 m, the pressure on the brick at that depth is determined by multiplying the density of water, the acceleration due to gravity, and the depth: pressure = density of water × gravitational acceleration × depth.
Therefore, the pressure on the brick is the same on all sides and depends on the depth of the water and the properties of the fluid.