the mechanical advantage of a hot air balloon is this that we can use it in many good ways like it is for individual flight for every one, and can be use at any time but it depends on the air resistance + gravity because if the gravity is low the hot air balloon would fly far and far in the air and if the gravity is hifgh it would unable to fly and in air resistance if the air is high it would be difficult for a hot air balloon to fly and if air resistance is low it would be difficult for hot air balloon to fly in the air
2,000 airplanes fly in the air each day.
Fly Air was created in 2002.
Fly Air ended in 2007.
17
I do not know it
engine lets airoplane fly in air and airoplane also fly with its wings
28,894,590.47
459,000
702 air miles from RDU to MIA.
There are many reasons that birds fly the way they do. One reason for why they fly in a V formation is because it reduces the air resistance on the birds in the back of the formation.
flaps its wings