The pressure under the ocean increases with depth due to the weight of the water above. The pressure can be calculated using the hydrostatic pressure formula:
P = ρgh
Where: P is the pressure ρ (rho) is the density of the fluid g is the acceleration due to gravity h is the depth
Assuming a constant seawater density of approximately 1,030 kilograms per cubic meter and a standard acceleration due to gravity of 9.8 meters per second squared, we can calculate the pressure at a depth of 3,000 meters:
P = (1,030 kg/m^3) * (9.8 m/s^2) * (3,000 m) P ≈ 30,294,000 pascals (Pa)
So, the pressure under the ocean at a depth of 3,000 meters is approximately 30,294,000 pascals or 30.3 megapascals (MPa). To put it into perspective, this is roughly 300 times atmospheric pressure at sea level.