Density And Pressure

To determine the pressure exerted on a whale diving 2 km under the sea, we first convert given units and apply fundamental physics principles. The depth is . The pressure due to a fluid column is calculated using the formula:

where is the density of the fluid, is the acceleration due to gravity, and is the depth.

Given:

Substituting these values into the formula:

or

Finally, since we need the pressure in terms of , we rewrite:

This value falls within the specified range of 20,20. Therefore, the pressure on the whale at this depth is: