With what force does the water press on the porthole of the bathyscaphe at a depth of 1.5 km

With what force does the water press on the porthole of the bathyscaphe at a depth of 1.5 km, if the area of the porthole is 12.56, dm2?

To calculate the force of salt water pressure on the porthole of this bathyscaphe, we use the formula: F = P * S = ρw * g * h * S.

Data: ρw – the density of salt water (ρw = 1030 kg / m3); g – acceleration of gravity (g = 9.81 m / s2); h – depth (h = 1.5 km = 1.5 * 10 ^ 3 m); S is the window surface area (S = 12.56 dm2 = 12.56 * 10 ^ -2 m2).

Calculation: F = ρw * g * h * S = 1030 * 9.81 * 1.5 * 10 ^ 3 * 12.56 * 10 ^ -2 ≈ 1.9 * 10 ^ 6 H = 1.9 MN.

Answer: Salt water presses against the porthole with a force of 1.9 MN.