Answer:
There's no short answer.
Explanation:
The engines start working by burning fuel, this in turn starts turning the engine blades and the blades suck in air and push it out from the back of the engines. This creates a force that pushes the airplane forward. As the volume of air that goes in and out of the engines increase, so does the kinetic energy the airplane has. At a specific speed, depending a lot of factors such as the weight of the airplane, the length of the wings etc, the force that the moving air provides from beneath the wings surpasses the force of gravity that is applied to the plane, the plane takes off.
I hope this answer helps.
Answer:
After returning from the past, he was left without understanding why he was not selected for the Slytherin but for the Gryffindor.
Explanation:
This question is about "Harry Potter and the cursed child", when he uses the necklace that allows time travel, to go to the past. On this trip he is faced with innumerable information that leaves him confused, mainly in relation to him and his father. When he finishes watching and returns from the past he is very thoughtful and does not understand why he was selected for the Gryffindor, since the past shows that he must have been in the Slytherin.