It's the balloon's volume and mass. If a thing has enough volume to compensate for its mass it will float on water, which also explains why steel ships can float, they have a huge hull. Check out the Yamato, a huge battleship of Japan during WWII.
It cant, unless it has an air pocket in it. Water has a density of one, so the water in the balloon also has a density of one, but the rubber ways it down. Try filling the balloon with cooking oil, oil has a lesser density than water, making it float on water.
Because helium is lighter than water / air.
Helium is very light.So balloons can float in air
The length would stay the same as the pressure inside the balloon equals the atmospheric pressure.
The air pressure inside the balloon will be slightly higher than outside. This is because the air inside the balloon is slightly compressed by the elasticity of the membrane of the balloon itself. By way of illustration, if you inflate a balloon, don't tie it and just let it go, then to everyones' amusement at parties the balloon flies crazily around the room until it is fully deflated! This fun aspect of balloons occurs as a result of the higher pressure inside the balloon escaping from the balloon to join the air in the room that is at normal pressure. Actually measuring the pressure inside the inflated balloon would require an experiment where the volume of pressurised air in the inflated balloon could be measured by a) measuring the volume of pressurised air inside the balloon by fully immersing the inflated balloon in a measuring receptacle full of water (with normal atmospheric pressure in the room pressing down on the surface of the water) and, then b) measuring the volume that the pressurised airinside the balloon would occupy once outside the balloon at normal atmospheric air pressure by inverting the measuring receptacle full of water (whilst held in a larger shallow tank of water so as to keep the measuring receptacle full of water once inverted - in the usual physics lab manner) and then release the air from the balloon into inverted water-filled measuring receptacle where it would gather in the top of the same. The difference in the two volumes would directly correlate with the difference in air pressure inside and outside the balloon.
I interpret this question to be asking how one might measure the volume of a water balloon without breaking the balloon or emptying it of the water in order to measure its volume. One method is to fill a container with water that will be large enough to contain the water balloon, and then submerging the water balloon in the container. The volume of the balloon will be the apparent volume change of the water in the container. Any measurement will introduce some error. Since water compresses hardly at all, one would expect that submerging the balloon would not significantly change the volume of the balloon. There could be some error if one had to push down on the balloon to make it fully submerge. There will also be some measurement error in determining the volume change.
If the balloon is filled with water, and the water freezes, the balloon will expand and may burst. This is because at temperatures below 4ºC, water begins to expand and as it turns to ice, it has a larger volume than when it was liquid.
Depends on the medium, and whether the ball is solid or not. A solid ball would float on mercury, sink in water. If it were hollow enough (or filled with, say, cork) it would float in water.
i probably wouldn't say the air had potential energy just that an inflated balloon has potential energy.
I'd say that an inflated balloon would be strain, but could you specify what potential energy? Chemical potential? Gravitational potential?
The hot air balloon inflated as we went down to the ground. The water raft inflated as I jumped on it.
The air would escape through the mouth causing the balloon to DEflate
Changes in air pressure
The length would stay the same as the pressure inside the balloon equals the atmospheric pressure.
That would be Helium
It would get smaller as the air inside the ballon contracted.
It could, if it contained enough air. To float on water, you would need about 1 liter of air for every kilogram you want to keep afloat.
Since there is no external pressure to counteract the internal gas pressure, the gas would expand until the balloon burst.
No, because the atmosphere would pop the balloon.
First, the balloon would float to the ground. After that, nothing special happens to the balloon because you filled it with oxygen.