Question

On August 12, 2000, the Russian submarine Kursk sank to the bottom of the sea, approximately 100 meters below the surface. Find the following at the depth of the Kursk. (Use physics principles.)

a) Atmospheric pressure
b) Buoyant force
c) Water density
d) Hydrostatic pressure

Answer 1

The hydrostatic pressure at a depth of 100 meters in water is 980,000 N/m^2.

Step-by-step explanation:

The pressure at a certain depth in a fluid, such as water, is determined by the weight of the fluid above that depth. This is known as hydrostatic pressure. The pressure increases with increasing depth due to the increasing weight of the fluid column. In this case, at a depth of 100 meters, the hydrostatic pressure would be:

Hydrostatic pressure = density x acceleration due to gravity x depth

where the density of water is approximately 1000 kg/m^3 and acceleration due to gravity is approximately 9.8 m/s^2. Using these values, the hydrostatic pressure at a depth of 100 meters would be:

Hydrostatic pressure = 1000 kg/m^3 x 9.8 m/s^2 x 100 m = 980,000 N/m^2 (or Pascal)