The relative density of steel is 7.8 find the mass of a solid steel cube of side 10cm
No idea please l need an answer
water density =1000 kg/m^3
so
steel density = 7800 kg/m^3
volume of this cube = (0.10)^3 = 10^-3 m^3
so mass =7800 * 10^-3 = 7.8 kg
Relative density of a substance= density of that substance/ density of water
7.8=density of steel/ 1000
density of steel=7.8×1000 =7800kg/m^3
volume=10×10×10
=1000cm^3
1000/1000000= 0.001m^3
mass=density×volume
=7800×0.001
=7.8kg
To find the mass of a solid steel cube, we need to use the formula:
Mass = Density x Volume
First, we need to find the volume of the cube:
Volume = side^3
Given that the side of the cube is 10 cm, we can calculate the volume:
Volume = 10 cm x 10 cm x 10 cm = 1000 cm^3
Next, we need to find the mass using the relative density of steel:
Mass = Density x Volume
Since the relative density of steel is 7.8, we can substitute this value into the formula:
Mass = 7.8 x 1000 cm^3
Mass = 7800 g (since 1 cm^3 = 1 g)
Therefore, the mass of the solid steel cube is 7800 grams.