Answer:
[tex]0.08\ kg/m^3[/tex]
Step-by-step explanation:
Density is defined as mass of an object divided by its volume.
#We calculate the volume of the cylinder:
[tex]V=\pi r^2 h, r=D/2=6/2=3\ cm\\\\=3.14\times 3^2\times 7\\\\=197.82\ m^3[/tex]
Given the mass= 15.3kg and volume as above, we calculate density as:
[tex]\rho=\frac{Mass}{Volume}\\\\=\frac{15.3\ kg}{197.82\ m^3}\\\\=0.0773\approx 0.08\ kg/m^3[/tex]
Hence, the solid's density is [tex]0.08\ kg/m^3[/tex]