Answer :
Answer:
If you were to inject air into space what would have happen?
Explanation:
In order for air to defy gravity, it would require atmospheric pressure. But air dosen't defy gravity unless it has the support of atmospheric pressure.
Final answer:
Air does not defy gravity; it is affected by it, having weight and experiencing gravitational forces. Phenomena like a helium balloon floating or astronauts feeling weightless in orbit are due to gravitational interactions and the absence of resistance in a vacuum, not the absence of gravity itself.
Explanation:
No, air does not defy gravity. Despite how it may seem, all forms of matter, including air, are subject to gravitational forces. Our experience with objects such as birds flying or specks of dust floating may give the illusion that they are immune to gravity, but these are merely interactions with air forces and the dynamics of the Earth's atmosphere.
For instance, a helium balloon rises because it is less dense than the surrounding air, but it still has weight, and gravity is acting on it. Moreover, the famous experiment with a hammer and a feather performed on the Moon by astronaut David R. Scott confirms that without air resistance, objects of different masses fall at the same rate due to gravity.
In the concept of free fall, such as what astronauts experience in orbit around Earth, gravity is still present. Objects in free fall do not exhibit weightlessness due to the absence of gravity but because of their constant free-fall motion towards Earth, which matches the fall of their surroundings, like the space capsule. This absence of a normal force acting upon their feet creates the sensation of weightlessness.
