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The 1994 Winter Olympics included the aerials competition inskiing. In this event skiers speed down a ramp that slopes sharplyupward at the end. The sharp upward slope launches them into theair, where they perform acrobatic maneuvers. In the women'scompetition, the end of a typical launch ramp is directed63° above the horizontal. With this launch angle, a skier attains a height of13 m above the end of the ramp. What isthe skier's launch speed?
At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls away, What is the source of the centripetal force acting on the riders
Determine the new planets mass density to earth mass density
A charge q is distributed uniformly around a thin ring of radius r, What is the magnitude of the magnetic moment of the rotating charge
A 500g model rocket is on a cart that is rolling to the right at a speed of 3.0m/s. The rocket engine, At what horizontal distance left of the hoop should you launch
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 7.95 mm. The nozzle shoots out water moving at 25.5 m/s. At what speed is the water in the hose moving
A thick-shelled hollow metal sphere contains in its cavity 2.0 nC of charge. What is the flux emanating from the outer surface
A cannon ball is fired horizontally with a velocity of 600 m/s from the top of a cliff 1000 m high.
A 40.0-N crate starting at rest slides down a rough 6.00-m-long ramp, inclined at 30.0° with the horizontal. What is the speed of the crate at the bottom of the incline
Amtrak's 20th-Century Limited is en route from Chicago to New York at 120km/h, How far was the train from the cow when the engineer first applied the brakes
Three charges, +q, +2q, and +4q, are linked by strings (Assume that the middle charge is fixed in space and the other 2 charges are held there by the tension alone.)
Estimate how many molecules of air are in each 1.8 L breath you take that were also in the last breath Einstein took (assumed to be the same volume). (Hint: Assume the atmosphere is about 12 km high and of constant density. Take the temperature of th..
Airplane emf A Boeing KC-135A airplane has a wingspan of 39.9 m and flies at constant altitude in a northerly direction with a speed of 840 km/hr. what is the induced emf between the wing tips
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