Question

Масса медного бруска 17,8 кг. Какого плотность меди. Если длина 400 мм ширина 100 мм высота 50 мм.

Answer 1

Объем куска меди:
V = 0,4·0,1·0,05 = 2*10⁻³ м³
Плотность:
ρ=m/V = 17,8/(2*10⁻³) = 8 900 кг/м³

Answer 2

Calculation of Copper Density

To calculate the density of copper, we need to use the formula:

Density = Mass / Volume

Given: - Mass of the copper block = 17.8 kg - Length = 400 mm - Width = 100 mm - Height = 50 mm

First, we need to convert the dimensions from millimeters to meters: - Length = 400 mm = 0.4 m - Width = 100 mm = 0.1 m - Height = 50 mm = 0.05 m

Next, we calculate the volume of the copper block: - Volume = Length x Width x Height = 0.4 m x 0.1 m x 0.05 m = 0.002 m^3

Now, we can calculate the density of copper: - Density = Mass / Volume = 17.8 kg / 0.002 m^3 = 8900 kg/m^3

Therefore, the density of copper is 8900 kg/m^3.