Radius of an iron sphere is 0.21cm. If the density of iron is 7.8g/cm^3. Calculate its mass.
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given radius r=0.21cm density=7.8g/cm^3
first we have to calculate the volume of the sphere.
Volume of the sphere is 4/3πr^3
V=4/3*22/7*(0.21)^3
V=.0388cm^3
density is given by D=m/V
therefore m=D*V
m=7.8*0.0388
m=.30264g
therefor the mass is .30264g
first we have to calculate the volume of the sphere.
Volume of the sphere is 4/3πr^3
V=4/3*22/7*(0.21)^3
V=.0388cm^3
density is given by D=m/V
therefore m=D*V
m=7.8*0.0388
m=.30264g
therefor the mass is .30264g
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