Answer
39.88 kg, 87.92 lbs
Work Step by Step
Osmium Sphere
Density: 22.57 g/cm3
Diameter: 15cm
Volume:?
Volume of Sphere = $\frac{4πr^3}{3}$
= $\frac{(4)(7.5^3)π}{3} cm^3$
Mass= Density x Volume
= $\frac{(22.57)(4)(7.5^3)π}{3}$
$\approx39884.48223$ g
$\approx39.88448223$ kg
$=39.88$ kg
1lb = $45.36x10^-3$ kg
$39.88$ kg= $\frac{39.88}{5.36\times10^-3}$
$\approx87.91887125$
= 87.92 lbs