Question

the density of an object is 2.85 gram per cm cube . Express it in kg per m cube . ​

Answer 1

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1 g = 0.001kg; 1cm = 0.01m;

Thus 1cm³ = 10^-6 m³;

2.85g/cm³ = (2.85×0.001kg)/10^-6 m³

= 2850kg/m³

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Answer 2

Explanation:

1 g = 1÷1000kg that is1×10^-3 or 0.001 kg

1 cm3 = 1 × 10^_6 m3

so by using conversion steps

= 2.85 ×0.001 kg ÷ 10^-6 m3 = 2850 kg m-3 so kgm-3 is the SI unit of density