well some paper can be more heavy than other paper so yes
The effect of a hole on a paper airplane would depend on the type of paper airplane the hole is on, and where it is on the aircraft.
no
gliders
the lighter the paper the easier the lift.Heavey paper will drop quicker.
no
Well, if you want a certain TYPE of paper airplanes, and how many are there of that type, ask that. There is no real answer. A paper airplane is probably being made right now!
I know!
I would say no.
aerodynamics
In a paper airplane experiment, the independent variable is the factor that is being deliberately manipulated or changed by the researcher. This could be the type of paper used, the design of the paper airplane, the angle of launch, or the force applied when throwing the airplane.
it could affect it because depending on the wing span, if they are wider then usual to catch more air.
Yes.