The deepest point of the Pacific Ocean is 11,033 m, in the Mariana Trench. What is the water pressure at that point? The density of seawater is 1025 kg/m³. A) 5.55 × 10⁷ Pa B) 8.88 × 10⁷ Pa C) 1.11 × 10⁸ Pa D) 2.22 × 10⁸ Pa E) 3.33 × 10⁸ Pa

Question

Quizplus · Accepted Answer

At the deepest point of the Pacific Ocean, the water pressure can be calculated using the formula:

pressure = density x gravity x depth

density = 1025 kg/m^3 (given)

gravity = 9.81 m/s^2 (standard value)

depth = 11,033 m (given)

Plugging in these values, we get:

pressure = 1025 kg/m^3 x 9.81 m/s^2 x 11,033 m
pressure = 1.09 x 10^8 Pa

Rounding off to two significant figures, the answer is 1.1 x 10^8 Pa or 1.11 x 10^8 Pa, which is closest to option C.

The Deepest Point of the Pacific Ocean Is 11,033 M