It can be anywhere between 80 and 140 knots depending on aircraft
landing
to gain speed for take off
200-340 mph
Yes you can take it on an airplane but you have to keep it switched off.You can use your phone only during take off and during landing. During the flight itself, you are not allowed to use your cell phone.Yes, but they usually ask you to turn them off during at least take off and landing (possibly the rest of the flight, I can't remember).
About 160 Knots
each plane has a set take off speed , flap position and weight for take off
It then produces lift due to wing configuration and can take off
Yes, however it is considered an electronic device and you will be required to turn it off during take off and landing sequences. Yes.
This also frequently occurs on landing mainly because of the difference in air pressure.
Food Drink Bathroom Take Off Late Passenger Landing
All sea planes, for example, have to ski for take-off and landing. So what is the point of the question?
The tarmac/landing strip..