Assume we're surrounded by air at standard temperature and pressure, and the helium is also at S.T.P.
The weight of a helium balloon of volume V would be equal to the density of helium multiplied by V multiplied by g (the acceleration due to gravity), i.e. VgρHe, and the weight of air displaced is similarly Vgρair. By Archimedes' principle, the balloon experiences an upward force equal to the difference, Vg(ρair - ρHe). If you want to lift a mass m then we must have Vg(ρair - ρHe) > mg, which gives:
V > m / (ρair - ρHe).
Setting m to 2 lbs (which is 0.91 kg) and plugging in the S.T.P. densities for air (typically 1.2 kg/m3) and helium (0.18 kg/m3) you get:
V > 0.89 m3,
i.e you need at least 890 litres (32 cubic feet) of helium at standard temperature and pressure.
Using helium in tires would have a minimal impact on the weight of a semi-trailer. Helium is much lighter than air, but the amount of helium in the tires is very small compared to the overall weight of the trailer, so the difference in weight would be insignificant.
1791.044776119403 cubic feet176 / 0.067 = 1791.044776119403
One pound of weight on Earth is equivalent to 1/6 pound of Moon-weight, or about 2 and 2/3 ounces.
A standard 11-inch helium balloon can lift approximately 14 grams or 0.5 ounces. The lifting capacity of a helium balloon can vary depending on factors such as balloon size, helium volume, and weight of the attached object.
Ftotal= B - Fg = 0 (B = Buoyant Force; Fg = Weight of mass) B = Fg (pf - po) * Vo * g = m * g (p = rho, density of fluid, air, and of object, balloon multiplied by volume of balloon, g cancels out.) (1800-17) * 200 = m m = 356600 units (units depends on what density value you were given. Typically they are in kg/m3, but these densities are very high for kg/m3.)
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.
Instead of adding a 25 pound weight, and then 2 ten pound weights, it would be much easier to add a 45 pound weight. A 45 pound weight is standard in every gym, and not everyone can lift 10 more pounds if there was a fifty pound weight (five extra pounds on each side totals to 10 more pounds to lift).
There is no set amount that a person should be able to lift based on their body weight.
helium can lift about 0.067 pounds per cubic foot because that is the difference between its weight and it's upward forceso120 / 0.067 = 1791.044776119403 cubic feet of helium assuming that it is contained by baloonswithout baloons, the helium will just simply get trapped in the atmosphere.
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 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.
Depends on the weight. Check the MythBusters website, they did an experiment on this.
depends how big the helium balloon is and how many
its depends on how much you weigh u should be able to do atleast 70 to 80 percent of your weight but sometimes after youv been liftin for a while u can do more like im 13 and i weigh 130 and i lift 155
-iaminNEED'S answer- to me(i am only 11 years old) but i am like pass that weight so,i think 25.
A true spider can lift eight times its weight.
Eagles can lift up to 4 pounds of weight.