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The 1994 Winter Olympics included the aerials in skiing. In this event skiers speed down a ramp that sloped sharply at the end. The sharp upward slope launches then into the air, where they perform acrobatic maneuvers. In the women's competition, the end of a typical ramp is directed 63o above the horizontal. With this angle, a skier attains a height of 13 meter above the end of the ramp. Evaluate what is the skier launch speed?
the 500m short track speed skating olympic world record is 39937sec held by american jr celski. calculate jrs average
A person of mass 80.0kg stands at the center of a rotating merry-go-round platform of radius 2.50m and moment of inertia 910kg*m^2. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk
A 96 kg astronaut and a 1100 kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25 m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact ..
an electron was accelerated from rest through a potential difference of 9900 v. what is its speed? the mass of an
a proton with an initial speed of 800000 ms is brought to rest by an electric field.a what was the potential difference
a point charge of 5 microc is located at x -3.0 cm and a second point charge of -9 microc is located at x 4.0 cm.
A farsighted person has a near point of 60.0 cm for the left ye and a near point of 90.0 cm for the right eye. What power should contact lenses have to allow the person
the femoral artery is the large artery that carries blood to the leg. a persons femoral artery has an inner diameter of
a defect in a diamond appears to be 2.18 mm below the surface when viewed from directly above that surface. how far
The specific heat of a certain metal can be determined by measuring the temperature change that occurs when a piece of the metal is heated, What is the specific heat of the metal
A 9.60 kg object oscillates at the end of a vertical spring that has a spring constant of 1.65*10^4 N/m. By what percentage does the amplitude of the oscillation decrease
A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field = 0.20 T + 0.40 T . The normal to the loop is parallel to the unit vector = -0.60 - 0.80 . What is the potential energy of the loop?
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