Question

4. The mass of an iron rod is 52 g. The density of iron is 7.8 g cm-?. Find the volume of the rod. ​

Answer 1

Answer:

6.667 cm cube

Explanation:

Density = Mass/Volume

Volume = Mass/Density

Volume = 52/7.8 = 6.667 cm cube

Answer 2

Answer:

As we know, D=M/V

If we prefer to cgs system then we can easily find the answer

7.8=52/x

X=7.8/52

X=0.15

But if we prefer to the SI System then we will have to convert the units,

on changing the units we obtain,

Mass=52g=0.052kg

Density=7.8 g/cm^3= 0.78kg/m^3

So, the volume which we obtain will be

=0.78/0.052

=15 m^3

Explanation:

Hope, it will help you

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