Question

Определите силу Архимеда, действующую на кирпич(1800 кг/м3), массой 500 г, в морской воде(1030 кг/м3)

Answer 1

V=m/p=0,5/1800=0,00028
Fар=p×V×g=1030×0,00028×10=2,86

Answer 2

Calculation of the Archimedes' Force on the Brick in Seawater

To determine the Archimedes' force acting on the brick in seawater, we need to calculate the buoyant force. The buoyant force is the force exerted by a fluid on an object submerged in it and is equal to the weight of the fluid displaced by the object.

The formula to calculate the buoyant force is:

Buoyant force (F) = density of the fluid (ρ) * volume of the fluid displaced (V) * acceleration due to gravity (g)

In this case, the brick has a mass of 500 grams and a density of 1800 kg/m³, while seawater has a density of 1030 kg/m³.

To calculate the volume of the fluid displaced by the brick, we can use the formula:

Volume (V) = mass (m) / density (ρ)

Let's calculate the volume of the brick first:

Volume of the brick = mass of the brick / density of the brick = 500 g / 1800 kg/m³ = 0.2778 m³

Now, let's calculate the buoyant force:

Buoyant force (F) = density of seawater * volume of the brick * acceleration due to gravity = 1030 kg/m³ * 0.2778 m³ * 9.8 m/s² = 2852.4 N

Therefore, the Archimedes' force acting on the brick in seawater is approximately 2852.4 Newtons.