Question

Вычислите архимедову силу, действующую на медный цилиндр объёмом 250см в кубе, погружённый в воду. варианты ответов- 2,5Н, 25Н, 0,25Н Помогите пожалуйста!!!

Answer 1

Архимедова сила на зависит от материала - медный или золотой
она равна весу вытесненной воды
масса воды  объёме 250 см3 равна  250 г (0,25кг)
Fa=2,5 H

Answer 2

Calculation of Archimedes' Force on a Copper Cylinder

To calculate the Archimedes' force acting on a copper cylinder submerged in water, we need to use the formula:

Archimedes' force = weight of the water displaced by the cylinder

The weight of the water displaced by the cylinder is equal to the weight of the cylinder itself. The weight of an object can be calculated using the formula:

Weight = mass x acceleration due to gravity

Let's break down the calculation step by step:

1. Determine the mass of the copper cylinder. 2. Calculate the weight of the copper cylinder. 3. Use the weight of the copper cylinder as the Archimedes' force.

Step 1: Determine the mass of the copper cylinder

You mentioned that the copper cylinder has a volume of 250 cm³. To calculate the mass, we need to know the density of copper. The density of copper is approximately 8.96 g/cm³.

Mass = Volume x Density

Substituting the given values:

Mass = 250 cm³ x 8.96 g/cm³

Step 2: Calculate the weight of the copper cylinder

The acceleration due to gravity is approximately 9.8 m/s². To convert the mass from grams to kilograms, we divide by 1000.

Weight = Mass x Acceleration due to gravity

Substituting the given values:

Weight = (250 cm³ x 8.96 g/cm³) / 1000 kg/g x 9.8 m/s²

Step 3: Use the weight of the copper cylinder as the Archimedes' force

The weight of the copper cylinder is equal to the Archimedes' force acting on it.

Therefore, the Archimedes' force acting on the copper cylinder with a volume of 250 cm³ submerged in water is equal to the weight of the cylinder calculated in step 2.

Please note that I have not provided the final numerical value for the Archimedes' force as the calculation requires the specific values for the volume and density of the copper cylinder, which were not provided in the question.