Question

Вычислите выталкивающую силы, действующую ев пузырек воздуха в воде,если его объем 25 см в кубе? Помогите пожалуйста

Answer 1

V=25*10^-6    po=1000   g=10

F=po*g*V=1000*10*25*10^-6=0.25 H

Answer 2

Calculation of Buoyant Force on an Air Bubble in Water

To calculate the buoyant force acting on an air bubble in water, we can use Archimedes' principle, which states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid displaced by the object.

The buoyant force (F) can be calculated using the formula:

F = ρ * V * g

Where: - F is the buoyant force - ρ is the density of the fluid (in this case, water) - V is the volume of the object submerged in the fluid (in this case, the volume of the air bubble) - g is the acceleration due to gravity

Given that the volume of the air bubble is 25 cm³, we can convert it to cubic meters by dividing by 1000000:

V = 25 cm³ = 25 / 1000000 m³

Now, we need to find the density of water. The density of water is approximately 1000 kg/m³.

Substituting the values into the formula, we get:

F = 1000 kg/m³ * (25 / 1000000 m³) * 9.8 m/s²

Simplifying the equation, we find:

F ≈ 0.245 N

Therefore, the buoyant force acting on the air bubble in water is approximately 0.245 Newtons.

Please note that this calculation assumes that the air bubble is in equilibrium and not moving vertically in the water.