radius of an iron is 0.21 cm. If density of iron is 7.8 g/cm3, calculate its mass.
Lamborghini:
is it an iron rod or what?
i cant tell the answer if u dont metion it is a rod,i will find out if u give the height
but only iron is mentioned there not height.
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volume of iron = 4/3×22/7×0.21 × 0.21 ×0.21
≈ 0.039 cm³
density= mass/volume
7.8 g/cm³ = mass/0.039 cm³
7.8 × 0.039 = mass
0.3042 g = mass
≈ 0.039 cm³
density= mass/volume
7.8 g/cm³ = mass/0.039 cm³
7.8 × 0.039 = mass
0.3042 g = mass
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