Question

Calculate the volume of copper of mass 2000kg when it's density is 8.4g/cm3

Answer 1

we know that

$density = mass \div volume$

8.4gm/cm^3= (2000×1000g)÷volume(cm^3)

by this we get volume = 238095.238 cm^3

Answer 2

$\mathsf{\heartsuit\;\;Density = \dfrac{Mass}{Volume}}$

$\mathsf{\implies Volume = \dfrac{Mass}{Density}}$

Given Data :

●  Mass = 2000 kg

★  1 kg = 1000 gm

$\longrightarrow$  Mass = (2000 × 1000) = 2000000 gm

●  Density = 8.4 gm per cm³

$\mathsf{\implies Volume = \dfrac{2000000}{8.4}\;cm^3}$

$\mathsf{\implies Volume = 238095.24\;cm^3}$

★  1 cm = 10⁻² m

$\mathsf{\implies Volume = 238095.24 \times (10^{-2}\;m)^3}$

$\mathsf{\implies Volume = 238095.24 \times 10^{-6}\;m^3}$

$\mathsf{\implies Volume = 0.238\;m^3}$