A diver goes under water and measures the pressure. At some point his instruments read a pressure of 50,000 Pa. How deep did the diver go in meters? The density of water is 1000 kg/m^3. (Write the number only with 1 significant figure)

Explanation:

The pressure of a Fluid

A fluid of density exerts pressure at a distance y (deep) given by

Where g is the acceleration of gravity or

This formula computes the pressure assuming the initial pressure is 0 at fluid (water in this case) level.

Knowing the measured pressure, we can know how deep the diver went by solving the equation for y

Let's plug in the given values

Thus

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank