You would need approximately 65 cubic feet of helium to lift 1 pound. Helium provides lift because it is lighter than the surrounding air, creating buoyancy.
About 0,85
Depends on the weight. Check the MythBusters website, they did an experiment on this.
To lift 400 pounds, you would need approximately 74.3 cubic feet of helium. Helium is lighter than air, so it provides lift when contained in a balloon.
1791.044776119403 cubic feet176 / 0.067 = 1791.044776119403
The weight of standard air is 1.2256 Kg/ Cubic Meter The weight of hydrogen is 0.0857 Kg/ Cubic Meter The weight of helium is 0.1691 Kg/ Cubic Meter Subtracting the weight of hydrogen from air gives you the gross buoyant lift of hydrogen as 1.1399 Kg/Cubic Meter Subtracting the weight of helium from air gives you the gross buoyant lift of helium as 1.0565 Kg/Cubic Meter These values are variable under altitude, pressure, temperature, humidity and purity of gas. Hope this helps you.
To lift a 175 lbs person, you would need a helium balloon with enough lift force to overcome the weight of the person. Assuming typical lift capacities of helium balloons, you would likely need a very large balloon, potentially around 70 feet in diameter or larger. It's essential to consider factors like helium density, ambient air density, balloon material, and safety margins when calculating the exact size needed.
On average, a person weighs about 70 kg (154 lbs). To lift this weight, it would take approximately 70 cubic meters of helium at standard atmospheric pressure. This is a rough estimate and actual lifting capacity would depend on various factors like inflation pressure and volume.
I believe it is approximately 1.13 cubic meters (1.13 litres will lift 1 gram; do the math.
To lift about 110 pounds it could take any where from 100 to 150 balloons to lift a person, a lawn chair, food, and many gallons of water. A man by the name of Kent Couch from Oregon demestrated this for us by flying from his home all the way to Idaho. I would'NT try this unless you have a parachute of some kind of device to help you have a better landing. The Balloons could be about the average party balloons (large ones) that are about 11in in diameter. Now remember this is very dangerous and could even be lethal.I hope this helped you.Thanks for looking--Tiana5701
The lifting power of a helium balloon depends on its size and the amount of helium inside. On average, a standard 12-inch helium balloon can lift about 14 grams.
10000000 helium balloons