Claiming dependents on your tax return can make a big difference in what you pay in taxes (or how big a refund you get). Each child you can claim as a dependent on your 2014 tax return knocks $3,950 off your taxable income, saving $988 in the 25 percent bracket.But children aren't the only ones you can claim as dependents.. Perhaps, if she meets the requirements for a qualifying relative. That means you must have lived together all year long, her gross income must be less than $3,950, and you must have provided more than half of her support. One other test: Your living arrangements must not violate local law.
Wingtip mounted engines. A wing tip (or wingtip) is the part of the wing that is most distant from the fuselage of a fixed-wing aircraft. Because the wing tip shape influences the size and drag of the wingtip vortices, tip design has produced a diversity of shapes, including: Squared-off.
The pressure imbalance that produces lift creates a problem at the wing tips. The higher-pressure air below a wing spills up over the wing tip into the area of lower-pressure air above. The wingâs forward motion spins this upward spill of air into a long spiral, like a small tornado, that trails off the wing tip. These wing tip vortices create a form of pressure drag called vortex drag. Vortices reduce the air pressure along the entire rear edge of the wing, which increases the pressure drag on the airplane. The energy required to produce a vortex comes at the expense of the forward motion of the airplane. Tilting the airplaneâs wings upward makes the vortices stronger and increases vortex drag. Vortices are especially strong during takeoff and landing, when an airplane is flying slowly with its wings tilted upward.