Question

Алюминиевая болванка имеет форму прямоугольного параллелепипеда .Длина 20 см ,ширина 10 см, высота 5 см. Найти массу болванки ,если 1 метр в кубе алюминия весит 2700 кг.

Answer 1

((20×10×5)÷1000000)×2700=2,7 (кг)

Answer 2

Calculation of the Mass of the Aluminum Block

To find the mass of the aluminum block, we can use the formula:

Mass = Volume x Density

The given dimensions of the aluminum block are as follows: - Length = 20 cm - Width = 10 cm - Height = 5 cm

We need to convert these dimensions to meters to ensure consistency with the density value given in kilograms per cubic meter.

Converting the dimensions to meters: - Length = 20 cm = 0.2 m - Width = 10 cm = 0.1 m - Height = 5 cm = 0.05 m

Now, we can calculate the volume of the aluminum block: - Volume = Length x Width x Height

Substituting the given values: - Volume = 0.2 m x 0.1 m x 0.05 m

Calculating the volume: - Volume = 0.001 m^3

The density of aluminum is given as 2700 kg/m^3.

Now, we can calculate the mass of the aluminum block: - Mass = Volume x Density

Substituting the values: - Mass = 0.001 m^3 x 2700 kg/m^3

Calculating the mass: - Mass = 2.7 kg

Therefore, the mass of the aluminum block is 2.7 kg.