To what level is water poured into the vessel if it presses on the bottom with a force of 0.8 N, and the bottom area is 10 cm2?

Initial data: F (force with which water presses on the bottom of the vessel) = 0.8 N; S (area of the bottom of the vessel) = 10 cm ^ 2 = 10 * 10 ^ -4 m ^ 2.

Reference values: ρ (density of fresh water) = 1000 kg / m ^ 3; g (acceleration due to gravity) = 10 m / s ^ 2.

1) Determine the water pressure at the bottom of the vessel: P = F / S = 0.8 / (10 * 10 ^ -4) = 800 Pa.

2) Calculate the height of fresh water in the vessel: P = ρ * g * h, whence h = P / (ρ * g) = 800 / (1000 * 10) = 0.08 m or 8 cm.

Answer: The height of fresh water in a vessel is 8 centimeters.