What is the upward acceleration of the airplane

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Q. A spring has a force constant of 931 N/m and an unstretched length of 8 cm. One end is attached to a post that is free to rotate in the center of a smooth table. The other end is attaced to a 1 kg disk moving in uniform circular motion on the table, which stretches the spring by 4 cm. Note: Friction is negligibe. What is the work done on the disk by the spring during one full circle?

Q. An airplane wing is designed so that the speed of the air across the top of the 2 wings is 258m/s when the speed of the air below the wings is 206m/s. The density of the air is 1.29kg/m3, the mass of the airplane is 1x10^5, and each wing has an area of 26.0m2? what is the upward acceleration of the airplane due to Bernoulli effect?

Reference no: EM1356402

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