the ratio of the wingspan to the average cord
For every action there is an equal and opposite reaction
False
is a line drawn halfway between the upper and lower surface of an airfoil.
created when a force is applied at some distance from an axis or fulcrum, producing rotation about that point
ρ = P/RT
F = ma
all weight is concentrated
a measure of the wing along the chord line, from the leading edge to the trailing edge