query: Why does a balloon filled with air weigh more than an empty balloon
positive_passages.docid: 6080
positive_passages.text: Is this kids experiment a legitimate way to show that air has mass?
negative_passages.docid: 82082
negative_passages.text: The velocity of the flowing coming out of the balloons?
negative_passages.docid: 28836
negative_passages.text: The bigger the mass, the more time slows down. Why is this?
negative_passages.docid: 129949
negative_passages.text: More detail on why pressure increases at the bottom of a column of gas
negative_passages.docid: 150477
negative_passages.text: Should these be called "weights" or "masses"?
negative_passages.docid: 120596
negative_passages.text: Do atmospheric physics prevent hot air balloons from ascending over 60,000ft?
negative_passages.docid: 31033
negative_passages.text: Is momentum conserved in the collision of a ball with a hanging rod?
negative_passages.docid: 4986
negative_passages.text: Why do two bodies of different masses fall at the same rate (in the absence of air resistance)?
negative_passages.docid: 20401
negative_passages.text: Why doesn't matter pass through other matter if atoms are 99.999% empty space?
negative_passages.docid: 76208
negative_passages.text: Is a hard drive heavier when it is full?
negative_passages.docid: 145533
negative_passages.text: Forces on a ball thrown upwards
negative_passages.docid: 31345
negative_passages.text: Is it normal for an Inner tube to bulge when inflated?
negative_passages.docid: 80207
negative_passages.text: Are moving objects producing stronger gravity fields?
negative_passages.docid: 66318
negative_passages.text: Why is the moment of inertia (wrt. the center) for a hollow sphere higher than a solid sphere (with same radius and mass)?
negative_passages.docid: 20981
negative_passages.text: Why is Earth's gravity stronger at the poles?
negative_passages.docid: 16300
negative_passages.text: What happens, if a rocket is filled with a vacuum instead of high pressured air?
negative_passages.docid: 137061
negative_passages.text: Understanding the different kinds of mass in gravity