(10cm)^3 * 7.8g/cm^3 = 7800g
8kg/(7.8g/cm^3) = 1025cm^3
The relative density of steel is 7•8. (A)find the mass of solid stell cube of side 10cm. (B)what volume of stell has a mass8kg.
3 answers
The relative density of steel is 7•8. (A)find the mass of solid stell cube of side 10cm. (B)what volume of stell has a mass8kg.
(A) The volume of the steel cube is (10 cm)^3 = 1000 cm^3.
The mass of the steel cube is:
mass = volume x density
mass = 1000 cm^3 x 7.8 g/cm^3
mass = 7800 g
Therefore, the mass of the solid steel cube is 7800 grams.
(B) To find the volume of steel that has a mass of 8 kg:
volume = mass / density
We need to convert the mass from kg to g:
mass = 8 kg x 1000 g/kg
mass = 8000 g
Now we can calculate the volume:
volume = 8000 g / 7.8 g/cm^3
volume ≈ 1025 cm^3
Therefore, the volume of steel that has a mass of 8 kg is approximately 1025 cubic centimeters.
The mass of the steel cube is:
mass = volume x density
mass = 1000 cm^3 x 7.8 g/cm^3
mass = 7800 g
Therefore, the mass of the solid steel cube is 7800 grams.
(B) To find the volume of steel that has a mass of 8 kg:
volume = mass / density
We need to convert the mass from kg to g:
mass = 8 kg x 1000 g/kg
mass = 8000 g
Now we can calculate the volume:
volume = 8000 g / 7.8 g/cm^3
volume ≈ 1025 cm^3
Therefore, the volume of steel that has a mass of 8 kg is approximately 1025 cubic centimeters.