Helium gas is pumped into a baloon which makes the ballon ascend,rigth?is it the pressure of the gas that determines the force with which it ascends or the size of the ballon?how can the force of the ascent be calculated?because if we can balance the force with that of an attached object, we might be able to suspend the object. Also can the gas do the same in order object?if the answers are yes we might be achieving a great level of "gravity manuver"
2007-03-28 05:23:49 · 2 answers · asked by niyemit 1 in Science & Mathematics ➔ Astronomy & Space
It is not exactly the pressure that makes the balloon rise, it is the lower density of the helium in the balloon that makes it float on the air. It is the same thing that makes a hot air balloon float. Heat makes the air expand so that the same number of pounds of air take up more space. One pound of helium takes up much more space than one pound of air. Ideally, you want the pressure in the balloon as low as possible because any compression of the gas makes it denser. The pressure in the Goodyear blimp is quite low; much much lower than in a party balloon.
2007-03-28 05:33:09 · answer #1 · answered by campbelp2002 7 · 1⤊ 0⤋
I do this with helium balloons all the time--it is fun. Tie weights to the string until the balloon barely rises. Then tie a piece of napkin. Remove bits of napkin until the balloon is balanced--it neither rises nor falls. It is a lot of fun watching it go around a room that way.
2007-03-28 14:27:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋