Nitrogen has mass.
Because the air that is in the full box is being pushed while the other box that is empty has no air at all for it to be heavy.
It depends on whether the bottle is full or empty. If full, it could contain anything. If empty, it probably contains air, which is a mixture of elements....nitrogen, oxygen, argon etc
2 to 4 hours.
The reservoir is always either full or empty.
A lightning blot is full of Nitrogen. So when a lightning bolt flashes it releases Nitrogen into the Atmosphere. Since Humans breathe 75 to 80 percent of Nitrogen it is essential to us.
A full cylinder is heavier than empty. The cylinder is filled by weight.
Stand them up in series, then alternate.
Gas cylinders weigh about the same whether full or empty.
The bartender is required to retain empty liquor bottles, and then each empty liquor bottle is replaced with a full one at the beginning of the next shift. The empty bottles are then either broken or disposed of as local beverage law requires.
Because the air that is in the full box is being pushed while the other box that is empty has no air at all for it to be heavy.
An empty glass full of
A football with full air is heavier.
The bottles empty are not worth much as is - if they were sealed in original boxes (very rare) they can be quite expensive - best to find someone that wants them for there collection of bottles instead of train buff's.
Full-Empty was created in 1994.
Take the second and the fourth full glass, and empty the contents into the second and fourth empty glass. Put the now-empty glasses back where they were. Now the glasses alternate between full, empty, full, empty, full, empty, full, empty, full, and empty.
occupiedFull, occupied, overflowing...
A full balloon contains more gas than an empty balloon (even an empty balloon contains a little air). Therefore a full balloon is heavier than an empty balloon (assuming the balloons are the same weight to begin with). However, if filled with a lighter-than-air gas, such as helium, the full balloon will defy gravity due to its increased buoyancy. The only other difference is that the skin of a full balloon will be stretched and will therefore be much thinner than the skin of an empty balloon. This stretching increases the pressure upon the gas contained therein, therefore the gas is compressed inside the balloon.