To lift one pound (about 453.6 grams) using helium balloons, you need approximately 33 regular helium balloons. This is because each typical helium balloon can lift about 14 grams, so dividing 453.6 grams by 14 grams per balloon gives around 32.4, rounded to 33 balloons
Explanation:
- Helium has a lifting force of roughly 1 gram per liter.
- A normal helium balloon (about 30 cm diameter) holds about 14 liters of helium.
- Therefore, each balloon can lift about 14 grams.
- Since 1 pound = 453.6 grams, the number of balloons needed = 453.6 / 14 ≈ 33 balloons
This estimate assumes the balloon's own weight and string are negligible. For larger objects or people, the number of balloons needed increases proportionally. In summary, about 33 standard helium balloons are required to lift one pound
