An empty gas container actually weighs less than a full container.
What ever was in the cylinder had weight of its' own. When the cylinder was emptied, only the weight of the cylinder was left.
An empty cylinder weighs less because it contains only the weight of the cylinder itself, whereas a filled cylinder contains the weight of both the cylinder and the substance inside it. The substance inside adds to the total weight of the filled cylinder.
Yes, an empty balloon weighs less than a balloon filled with air because the air adds to the overall weight of the balloon.
You could put a flexible bladder (balloon) filled with helium in it. The classic answer to this old question is: Fill it full of holes.
An empty aluminum beer can weighs 15g. The tab weighs less than one gram. So in conclusion, 15g > less than 1g.
Because it weighs less than one that's full of product.
The bottle of helium gas would weigh less than the identical bottle filled with air at the same pressure. Helium is less dense than air, so a bottle filled with helium weighs less due to the difference in density of the two gases.
A balloon filled with helium flies because helium weighs less than air.
The air (within the ship) is less dense than water.,
Air
Also, no visible leaks in the lines, all brake pads were changed less than 4 months ago. Master Cylinder has been going dry in 2 days time, now there are absolutely no brakes after I filled it back up today.
a filled in circle/dot means "greater than or eaqual to/less than or equal to" (depending on which way the arrow is pointing. an empty cirlce means only "greater than/less than". the greater than/less than symbol with the line under it will indicate the filled in circle. the normal greater than/less than symbol willl indicate the hollow cirlce