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An airplane with a speed of 69.8 m/s is climbing upward at an angle of 40° with respect to the horizontal. When the plane's altitude is 660 m, the pilot releases a package.
(a) Calculate the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
(b) Relative to the ground determine the angle of the velocity vector of the package just before impact.
An ultralight plane and pilot have a total mass of 168 kg, what is the net force acting on the plane and pilot
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An elastic cord is 63.9 cm long when a weight of 71.1 N hangs from it but is 88.9 cm long when a weight of 184 N hangs from it. What is the "spring" constant k of this elastic cord
John measured the thickness of a book using a ruler. Calculate the mean thickness of the book.
The force on a string is 198 N and the string's linear mass is 1.9 kg/m. What is the speed of waves on the string
A particle with a mass of 4.10 × 10-20 kg is oscillating with simple harmonic motion with a period of 2.9 × 10-5 s and a maximum speed of 2.3 × 103 m/s.
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