What is the density of the object if it weigh 389.27g and has volume of 832.92cm3

The density of the object is 0.467 36 g/cm³.

The mass of the object is 389.27 g.

The volume of the object is 832.92 cm³.

Density = mass/volume = 389.27 g/832.92 cm³ = 0.467 36 g/cm³

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.