How deep is the submarine, if the water pressure in this place is 45 MPa?

Initial data: P (water pressure at the place where the submarine is located) = 45 MPa (45 * 10 ^ 6 Pa).

Reference values: ρ (density of seawater) = 1030 kg / m3; g (acceleration due to gravity) = 9.81 m / s2.

The depth at which the submarine is located is determined from the formula for calculating the hydrostatic pressure: P = ρ * g * h and h = P / (ρ * g).

Calculation: h = 45 * 106 / (1030 * 9.81) ≈ 4 454 m.

Answer: The submarine is at a depth of 4,454 m.