It depends on the airline; some may allow it as a carry-on, others may allow it only as checked luggage. For domestic flights of American Airlines, for example, the allowable carry-on must not exceed the 48" size requirement. This is the total inches of the length, width, and height of the item. The item in the above question would be 49" total (24+11+14), and would technically exceed American Airlines carry-on standards.
NO! Absolutely not! If it's not allowed in the plane why would it be allowed in the bathroom?
No it is not allowed on a carry on but it is allowed on a checked bag or suitcase. If I were you I would put it in a plastic ziploc bag incase it cracks.
Yes, allowed.
No
No
Yes, they are on any plane.
If only allowed to pivot in a horizontal plane, it would wander aimlessly. If also allowed to deflect vertically, it would point straight down into the ground.
Yes
No.
No.
Yes, unless the airline says something about it, you are allowed to take an mp3 player on a plane.
yes