Complete the write-up for the following exercise:
Mass of helium present in the Rozière.

🇫🇷 French Version

Document 1: 🌍 Around-the-world balloon flight
On March 21, 1999, the Swiss aeronaut Bertrand Piccard and the British aeronaut Brian Jones completed their around-the-world balloon flight by landing in Egypt.
Their achievement was rewarded with a prize of one million dollars.
Bertrand Piccard and Brian Jones with the Rozière balloon
They set several records:
* Flight duration: 19 days 21 hours
* Maximum altitude: 12 km
* Maximum speed: 240 km/h

Document 2: 🔬 Helium He
Helium is a gas present in air in very small amounts. It is less dense than air and can be used in weather balloons and to inflate airships.
The density ρ of helium is equal to 0.16 kg/m³.

Document 3: 🎈 Rozière Breitling Orbiter 3
Rozière Breitling Orbiter 3 balloon
A Rozière (or hybrid hot-air gas balloon) combines a gas balloon with a hot-air envelope. Its name comes from the inventor Pilâtre de Rozier.

The Rozière Breitling Orbiter 3 contains two helium cells with a total volume of 18,500 m³, enclosed within a hot-air envelope.

Calculate the mass of helium present in this Rozière.

Step 1:
Let us calculate the of helium in the Rozière.

Step 2:
The formula to use is:

a) \( \mathsf{m = \dfrac{V}{\rho}} \) b) \( \mathsf{m = \dfrac{\rho}{V}} \) c) \( \mathsf{m = \rho \times V} \)

Step 3:
ρ =  kg/m³
V =  m³
Click the data in the statement to complete this step.

Step 4:
Calculation:
m =   

📊 RESULT:
m =

Step 5:
The mass of helium in the Rozière is equal to  .

mass
c
0.16
18,50018500 18,500
0.160.16 0.16
×* ×
18,50018500 18,500
2,9602960 2,960
kg
2,9602960 2,960
kg

📊 RESULT:

Next exercise 🔀

Complete the write-up for the following exercise: Mass of helium present in the Rozière.

📊 RESULT:

Complete the write-up for the following exercise:
Mass of helium present in the Rozière.