Question

A 269 kg weather balloon is designed to lift a 2910 kg package. What volume should the balloon have after being inflated with helium in order that the total load can be lifted? (Assume standard temperature and pressure, at which the density of air is ρ$_{air}$ = 1.29 kg//$m^{3}$ and the density of helium is ρ$_{He}$ = 0.179 kg/$m^{3}$.)

Answer 1

As, per the buoyancy force,the volume that the balloon should have is 2863$m^{3}$

What is buoyancy force?

Air buoyancy is the upward force exerted on an object by the air that is displaced by object. Air buoyancy is responsible for the buoyancy created by the displaced air.

$F_{b}$ = -Vρg ,       where V= volume of the object

                                   ρ = density of the object

                                   g = acceleration due to gravity

                                   $F_{b}$ = buoyant force

The buoyancy force must be equal to the total load lifted

ρ$_{He}$ × V × g + 269 + 2910 = ρ$_{air}$ × V × g

0.179 × V + 3179 = 1.29 V

0.179V + 3179 = 1.29V

0.179V- 1.29V = - 3179

1.11V = 3179

On solving , we get

V = 2863 $m^{3$

Therefore, the volume that the balloon should have is 2863$m^{3}$.

Learn more about buoyancy force here;

brainly.com/question/15187724

#SPJ1