Answer: Yes it will sink.
Explanation
[tex]Density= \frac{mass}{volume}[/tex]
If the density of a substance in less than of the another substance then the substance with less density will float in substance with higher density or vice versa.
Density of iron block:
mass of iron = 213 g
Volume of block = length× breadth×height= [tex]{3.00 cm\times 3.00 cm\times 3.00 cm}[/tex]
[tex]\rho_{iron}=\frac{mass}{volume}=\frac{213 g}{3.00 cm\times 3.00 cm\times 3.00 cm}=7.8 g/cm^3[/tex]
Density of the water = [tex]\rho_{water}=1.00g/cm^3[/tex]
The [tex]\rho_{iron}>\rho_{water}[/tex], density of iron block is more than of the water which means that iron block will get sink in the water.
So, yes it will sink.
