What is the tension of each of these wires

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Q. An airplane has a mass of 1.8×10^6 kg , and the air flows past the lower surface of the wings at 94 m/s .f the wings have a surface area of 1300 m^2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the air?

Q. A street lamp weighs 154N. It is supported equally by two wires that form an angle of 120° with each other.
What is the tension of each of these wires?

If the angle between the wires is reduced to 90°, what new force does each wire exert?

Reference no: EM1372391

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