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Approximately 15 cubic feet of Helium.
16 lbs.
Any upward force greater than 78 lbs will accelerate that person vertically upwards.
63 kJ is needed.
500N
to lift 1 kg or 2 pounds you need 0.16 kg of helium so for 2000 pounds you need 160 kg of helium or 320 pounds at 1 atmosphere
Approximately 15 cubic feet of Helium.
1791.044776119403 cubic feet176 / 0.067 = 1791.044776119403
16 lbs.
depends how big the helium balloon is and how many
That takes 80 foot-pounds, equivalent to about 59 joules.
Depends on the weight. Check the MythBusters website, they did an experiment on this.
650 pounds
An empty blimp can weigh as much as 12,840 pounds. This is without being filled with helium. When full of helium the blimp may only weigh as much as 200 pounds.
Macho Matt can lift 200 kilograms with ease. How much is this in pounds?
9.052 pounds
-8 pounds