Find the pressure in a tank filled with oil with a height of 50 cm.

We express the hydrostatic pressure of oil in the tank by the formula:
Р = ρ * g * h, where Р is the oil pressure at the bottom of the tank (Pa), ρ is the oil density (we take ρ = 800 kg / m ^ 3), g is the gravitational acceleration (we take g = 9.8 m / c ^ 2), h is the height of the tank (h = 50 cm = 0.5 m).
Let’s calculate the oil pressure:
P = ρ * g * h = 800 * 9.8 * 0.5 = 3920 Pa ≈ 3.92 kPa.
Answer. The oil pressure at the bottom of the tank is 3.92 kPa.