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6 719 174.875 balloons or 6 719 175 balloons for a 100 000 lb house or
45 360 kg home.
This was for my grade 12 physics summative. Did pretty well ^^
The answer above adds in the string (7.2 x10^-4 kg for 100 m of fishing wire) , rubber balloon(0.0029 kg) and helium weight, as well as temperature of 20 degrees Celsius and altitude of 0 above sea level.
width and height of balloon is 0.13m and the length is 0.14 m.
I neglected wind resistance.
If you want to calculate it yourself in case your observations are different, read below. *** are the important equations.
*** Fb= (101325(1-2.5577E-5•h)^5.2588 / R•T)•(4/3rlrwrh)•(g) <---equation for the upward buoyancy force.
where:
h is the altitude above sea level
R is the the individual gas constant = 286.9 for air
T is temperature is kelvin = 293 degrees K
rl = radius of the length, rw is radius of the width, rh is radius of the height of the balloon
and g = 9.81 m/s^2 (the acceleration of gravity)
*** FH= [(101325(1-2.5577E-5•h)^5.2588 / R•T)•(4/3rlrwrh)+mrubber+mstring]•(g) <--- equation for the downward buoyancy force of the helium balloon
where
mrubber is mass of the rubber balloon
mstring is mass of the string used
R = individual gas constant = 2077 for helium
Fnet is the total force between the two equations. So Fb is positive (going up), FH is negative (going down)
therefore *** Fnet = Fb-FH
That answer is the TOTAL upward force of the helium balloons
For downward force of the object you're trying to lift is the weight.
simply, *** weight = mg
so that is the weight u need to lift in N and the upward Force of the helium balloons has to be equal or more than the weight.
SO the number of balloons needed to lift wtv it is you need to lift is equal to
*** W÷Fnet
note: my units are in kilograms! If you want to calculate in pounds, convert!
What else can I help you with?
How many balloons can lift a child?
The number of balloons needed to lift a child would depend on the weight of the child and the size of the balloons. On average, it may take around 80-100 helium-filled balloons to lift a small child off the ground. It's important to consider safety measures and proper balloon handling if attempting such a stunt.
How many weather balloons to lift 190 lb person?
It would take roughly 67 weather balloons to lift a 190 lb person. Each weather balloon can lift around 3 lbs of weight, so dividing the person's weight by the lifting capacity of one balloon gives the approximate number needed.
How many balloons does it take to lift a 190 pound man?
assuming that temperature is constant and that we're talking about regular party balloons (a "regular" 2-gram party balloon can hold ~ 16 grams of gas), you would need 6,156 baloons to hold your weight in equilibrium. you would need an amount greater than this to actually lift you (the more extra balloons, the faster the lift), and this is not accounting for the weight of the string. extrapolated from: http://malaysia.answers.yahoo.com/question/index?qid=1005123102737
Why do bigger balloons take longer to fall?
Bigger balloons displace more air, creating more resistance against gravity, which slows down their descent. This increased surface area-to-weight ratio also helps them generate more lift, further reducing their fall speed.
How many helium balloons does it take to lift 5 pounds?
At 25 degrees Celsius (77 Fahrenheit) and standard pressure (101.3 kPa) one pound of helium would fill 2768 Liters (731) Gallons It depends on how big you want to fill the balloons, the pressure of the balloons the temperature and a range of other things.
How many balloons would it take to lift up the average house?
It would take thousands of balloons to lift up the average house, as houses are heavy and balloons can only lift a small amount of weight. The exact number of balloons required would depend on the size and weight of the house, but it would be an impractical and unsafe way to try to lift a house.
How many helium balloons does it take to lift the Titanic?
10000000 helium balloons
How many helium balloons does it take to lift a 20 pound frozen turkey?
It would take approximately 480 helium balloons to lift a 20-pound frozen turkey. Helium can lift about 0.04 lbs per balloon, so 20 lbs divided by 0.04 lbs per balloon equals 500 balloons.
How many balloons can lift a child?
The number of balloons needed to lift a child would depend on the weight of the child and the size of the balloons. On average, it may take around 80-100 helium-filled balloons to lift a small child off the ground. It's important to consider safety measures and proper balloon handling if attempting such a stunt.
How many helium balloons does it take to lift a kilogram?
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
What if you are 64 pounds how many balloons would it take to lift you?
Assuming one party balloon can lift about 14 grams, it would take approximately 129 party balloons to lift 64 pounds. However, this is a rough estimate as variables such as balloon size, air temperature, and altitude can affect the lifting capacity.
How many weather balloons to lift 190 lb person?
It would take roughly 67 weather balloons to lift a 190 lb person. Each weather balloon can lift around 3 lbs of weight, so dividing the person's weight by the lifting capacity of one balloon gives the approximate number needed.
How do you get to the top of the light house?
Take the lift
Just say you had a bunch of party balloons filled with helium tied to a person how many balloons would it take for a 150lb person to jump like they were on the moon?
well it depends how much the person weighs so do this take the persons weight and multiply it by five the divide it by how many inches the balloon is around then last but not least you add how much time it takes to blow up the balloon (this is because different heilium machines have different presure gages) and there is how many balloons it takes to lift a person off the ground wit regular party balloons
How many balloons will it take to pick up a 120lb person?
It takes about 300 balloons to lift 200 pound manballoon filled with exactly 1 sq ft of helium yields about 28.2g (upward thrust)453.6 grams/Lb453.6(1Lb) /28.2= about 16 blnsSo to get one pound off of the ground it would take about 16 balloons16x200= 3200it would take 3200 balloons to lift a 200 lb person....Only hoover not continually rise on account of the uneven weight distribution and the temp differences in each balloon helium isn't as buoyant when cold, unless the temp is consistant. Wind is a factor; as well as the amount of static charge in the air
How many balloons does it take to lift a 190 pound man?
assuming that temperature is constant and that we're talking about regular party balloons (a "regular" 2-gram party balloon can hold ~ 16 grams of gas), you would need 6,156 baloons to hold your weight in equilibrium. you would need an amount greater than this to actually lift you (the more extra balloons, the faster the lift), and this is not accounting for the weight of the string. extrapolated from: http://malaysia.answers.yahoo.com/question/index?qid=1005123102737
How many balloons does it take to fly?
One ... if its big enough.
