sonic boom
Because the plane is flying faster (and therefore ahead of) its own sound.
Yes, you can hear a plane witch is 1000 meters high.
BATS!
Those are ultra sonic planes. There is a sonic boom if it is traveling with sound speed.
Flies hear through their legs.
Before his emergency solo in the hatchet, Brian had been given brief lessons on flying the plane by the pilot, who showed him how to level it out and keep it flying straight. He also had a headset on, which allowed him to hear air traffic control's instructions. Despite this limited preparation, Brian was able to successfully fly the plane and land it in the wilderness.
Make sure it isn't yours. If it is, prepare yourself & belongings to board the plane.
yes, you can hear planes at 35000 feet.
You would hear the sound after the plane has passed.
Stop if you hear it.Remain still until you locate it. When you do locate it, go in the opposite direction it is in. If you have a shotgun, use it.
bat
The flying sparrow hear beats about 600 times in a minute.