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An experimental airplane is flying northwest from Nashville, at an altitude of 18,000 ft. The pilot has reported his Mach =.75 The airplane has a wingspan of 100 ft and an aspect ratio of 7.5 The wing section for the airplane is a NACA 1412 airfoil (assume the 2-D airfoil data is applicable for the aircraft) and the alpha for the airfoil in flight is 4 deg. Determine the lift.
From then on, the wheel turns through an angle of 431 rad as it coasts to a stop at constant angular deceleration. Illustrate a t what time does the wheel stop?
Two charges are held 0.5 m apart and exert a force of 32 N on one another. what is the force they exert on one another
A ball rolls off a table with a horizontal velocity of 5 m/s If it takes 0.6 secs for it to reach the floor, What is the verticle componet of the balls velocity just before it hits the floor
Which is safer as a road material
You are testing a new amusement park roller coaster with an empty car with mass 123 kg. One part of the track is a vertical loop with radius 11.1 m, how much work is done by the friction
A car and a motorcycle is racing from rest. The motorcycle first takes the lead because its constant acceleration am = 8.40 m/s2, How long does the car take to reach the motorcycle
A cannon tilted up at a 25 degree angle fires a cannon ball at 81.0m/s from atop a 18.0m -high fortress wall
The woman then starts walking clockwise around the rim at .75 rad/s. in what direction and with what angular speed does the turntable rotate.
Suppose that we align a compass needle with the horizontal component of the Earth's magnetic field, What is the size of the horizontal component of the Earth's magnetic field
A block resting on a smooth surface explodes into three pieces. A 465 gram piece travels at 1.7 m/s, a 1999 gram piece travels 0.7 m/s, calculate the mass and direction of the third piece.
The threshold of dark-adapted (scotopic) vision is 4.0 multiplied by 10-11 W/m2 at a central wavelength of 500 nm. how many photons per second enter the eye
A ski tow operates on a slope of angle 14.8? of length 250m . The rope moves at a speed of 12.4km/h, Estimate the power required to operate the tow
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