Question

3. The density of aluminium is 2.7 g cm-3. Express it in kg m- Ans: 2700 kg m-3​

Answer 1

Explanation:

density of aluminium= 2.7g/cm³...

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Answer 2

First we have to derive how much is 1g/cm^3

$\boxed{\sf 1kg=1000g}$

$\boxed{\sf 1cm^3=0.0001m^3}$

$\\ \sf\longmapsto 1g/cm^3=\dfrac{1000}{0.0001}$

$\\ \sf\longmapsto 1g/cm^3={1000kg/m^3}$

Now

$\\ \sf\longmapsto 2.7g/cm^3$

$\\ \sf\longmapsto 2.7\times 1000$

$\\ \sf\longmapsto 2700kg/m^3$