Calculating Diameter of Balloon to Lift 20 Metric Tons

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SUMMARY

To calculate the diameter of a spherical balloon required to lift 20 metric tons using helium at a pressure of 101.325 kPa and a temperature of 21.1°C, one must apply the principles of buoyant force. The buoyant force is determined by the volume of displaced air, which can be calculated using the ideal gas law and Archimedes' principle. The necessary calculations will yield the required diameter for the balloon to achieve the desired lift.

PREREQUISITES
  • Understanding of buoyant force and Archimedes' principle
  • Familiarity with the ideal gas law
  • Basic knowledge of pressure and temperature relationships
  • Ability to perform volume calculations for spherical shapes
NEXT STEPS
  • Study the ideal gas law and its applications in buoyancy calculations
  • Learn how to calculate buoyant force using Archimedes' principle
  • Research the properties of helium and its lifting capabilities
  • Explore geometric formulas for calculating the volume and diameter of spheres
USEFUL FOR

Students in physics or engineering, balloon designers, and anyone interested in the principles of buoyancy and gas laws for lifting applications.

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Homework Statement



balloons are required to lift 20 metric tons. the pressure of helium is 101.325kpa. temp=21.1degcelsius.

what should be the diameter of the balloon if it was spherical in shape in order to lift the weight?


Homework Equations



buoyant force??


The Attempt at a Solution



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tnx.
 
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You need to show more work in order for us to help you. Tell us more about buoyant forces. What causes them? If you have an object that normally floats in water, and you hold it under water, how do you calculate the upward force that you feel from the object?
 

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