For a change in depth $\Delta h$ within a liquid of density $\rho$, the corresponding change in pressure $\Delta p$ is given by $\Delta p = \Delta h\rho g$, where $g$ represents the acceleration of free fall. Which equation, or principle of physics, is used to derive this formula?
- Aatmospheric pressure decreases with height
- Bchange in gravitational potential energy $= \text{mass} \times g\Delta h$
- C$\rho = \dfrac{\text{mass}}{\text{volume}}$
- Dthe density of a fluid increases with depth