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Is Density of helium balloon is greater or less than air?
The density of helium is less than that of air. Due to this reason, balloons filled with helium will float in air.
Compare the density of water and air?
Air's density is less than that of water. Water's density is almost 800 times greater than air.
Is The air density in Atlanta lesser or greater than the air density in Colorado?
greater
Does air with greater density contain more or less molecules than less dense air?
Yes, given the same volume of both.
How does cold air effect the density of gas?
'Cold' air will have less volume so the density is greater.
When you compare the density of water or air with another object how can you tell which has the lower or higher density?
-- If the object floats in water, then its density is less than the density of water. -- If the object sinks in water, then its density is more than the density of water. -- If the object floats in air, then its density is less than the density of air. -- If the object sinks in air, then its density is less than the density of air.
Why is the terminal velocity in water less than the terminal velocity in air?
More resistance, caused by a greater density.
Why wont a blloone with carbon dioxide float?
To float in air, the density of the balloon (divide the combined mass of balloon + contents by its volume) must be LESS than that of the same volume of air. If the gas inside the balloon has a greater density than air, the combined object (balloon + contents) won't have less density than air, either.
Is the greater the density of the air the less pressure it exerts?
They stay the same :)
How do you think the density of heated air compares to the density of cooler air?
The density of heated air is less than the density of cooler air.
Why does a ice cube fall in air?
B/c the density of the ice cube is greater than the density of the air.
Is air density in Atlanta is more or less than the air density in Denver CO.?
Air density - at least, the average air density - pretty much depends on the altitude. I suggest you look up the altitude of both places (you can probably find it on the corresponding Wikipedia articles); the place with the lower altitude should have a greater air density.
