Question

What is the pressure at a depth of 15 cm brine of density 1.2/cm³? ​

Answer 1

From the question we have got;

1. Height: 15 cm = 15/109m = 15 × 10-²
2. Density: 1.2 cm³= 1.2g/cm³ = 1.2 × 10³ kg/m³
3. Acceleration due to gravity:10m/s²

Pressure = ρgh

= 15 × 10-² × 1.2 × 10³ × 10

= 1800 Nm-²

Answer 2

P = density × gravity acceleration × height

P = 1200 × 9.81 × 15/100

P = 1765.8