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The terminal speed of a sky diver is 124 km/h in the spread-eagle position and 338 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other, find the ratio of the effective cross-sectional area A in the slower position to that in the faster position.
An initially stationary 4.1 kg object accelerates horizontally and uniformly to a speed of 12 m/s in 3.3 s. how much work is done on the object by the force accelerating it
A ball is thrown straight up from the ground with an initial velocity of 39.2 m/s; at the same instant, a ball is dropped from the roof of a building 27.7 m high - After how long will the balls be at the same height?
A 75-kg man is riding in a 75-kg cart at 1.0 m/s. He jumps off in such a way as to land on the ground with no horizontal velocity
You throw a ball horizontally off a roof. the time until it lands is determined only by The height of the roof and it's initial speed
Explain how much gain or loss does Martha recognize and illustrate what is her basis in the distributed property and in her partnership interest following the distribution?
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. What distance did the dog run
At a distance of 6.0 km from a radio transmitter, the amplitude of the oscillating electric field of the radio wave is Eo=.13 V/in, What is the time-averaged energy flux
A -3.07 ?C charge is placed at the center of a conducting spherical shell, Calculate the total charge on the outer surface of the conductor
Assume we have an infinitely long wire carrying a current of 2.50 A. It is bent into an L-shape extending into positive infinities along x- and y- axes. Find out the magnitude of the magnetic field at a point P with coordinates (0.30 m, 0.30 m)
A proton (q=1.6x10^-19 columbs) and mass = 1.67x10^-27 kg is placed 5 cm away from the center of a charged, What is the acceleration of the proton
You are at the controls of a particle accelerator, sending a beam of 3.90×107m/s protons (mass m ) at a gas target of an unknown element. What is the speed of the unknown nucleus immediately after such a collision
Light is incident from one medium with an index of refraction of 2.29 at an angle of 29.12 degrees with respect to the normal to the surface. The light then passes into another medium with a refractive index 1.44. With what angle is the light refr..
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