Question

Срочно!!!! Вычислить выталкивающую силу, действующую в воде на тело объемом 20 см кубических

Answer 1

Fa=Vт*ρж*g
Fa=0,00002м³*1000кг/м³*9,8Н/кг=0,2Н

Answer 2

Calculating Buoyant Force in Water

To calculate the buoyant force acting on an object in water, we can use the formula:

Buoyant force = weight of the water displaced by the object

The weight of the water displaced by the object can be calculated using the formula:

Weight of water displaced = density of water × volume of the object × acceleration due to gravity

Given: - Volume of the object = 20 cm^3

We can calculate the buoyant force using the above formula.

Calculation

The density of water is approximately 1000 kg/m^3.

Converting the volume of the object to m^3: - 20 cm^3 = 20 × 10^-6 m^3

Using the formula: - Weight of water displaced = 1000 kg/m^3 × 20 × 10^-6 m^3 × 9.81 m/s^2 (acceleration due to gravity)

Calculating the weight of water displaced: - Weight of water displaced ≈ 0.0001962 N

Therefore, the buoyant force acting on the object in water is approximately 0.0001962 N.