Final answer:
The density of the liquid in the flask is calculated to be 8000 kg/m3 using the formula P = ρgh where P is pressure, ρ is density, g is gravity, and h is height.
Step-by-step explanation:
When the height of a liquid in a flask is 20 cm and it exerts a pressure of 1600 N/m2 at the bottom, the density of the liquid can be calculated using the formula for fluid pressure due to its own weight, which is Pressure (P) = density (ρ) * gravity (g) * height (h). Given that the pressure P is 1600 N/m2 and the height h is 20 cm (or 0.2 m), we can rearrange the formula to solve for density (ρ) as follows: ρ = P / (g * h). Taking acceleration due to gravity g as 9.8 m/s2, we calculate the density. Therefore, the density of the liquid is ρ = 1600 N/m2 / (9.8 m/s2 * 0.2 m), which simplifies to ρ = 8000 kg/m3 after calculation.