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A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.70*105 N. In being launched from rest it moves during a distance of 87 m and has a kinetic energy of 4.40*107 J at lift-off. What is the work done on the jet with the catapult?
A uniform electric field exists in a region between two oppositely charged plates. Find the speed of the electron as it strikes the second plate
A cyclist approaches the bottom of a gradual hill at a speedof 20m/s. find the speed at which the cyclist crests the hill
as a fish jumps vertically out of the water assume that only two significant forces act on it an upward force f exerted
Use the worked example above to help you solve this problem. An object 3.08 cm high is placed 19.3 cm from a convex mirror with a focal length of 7.80 cm. Find the magnification of the mirror
If energy were conserved in each collision, what would you expect the ratio of the total kinetic after the collision to the total kinetic energy before the collision to be? Are there anyof your collisions where energy is not conserved? Is this exp..
The Ed-Scale defines the perfect temperature of a martini to be 8.0 degrees E and boling point of antifreese to bee 100 degrees E. Use this equation to find the freezing point of water in Eds
A grindstone of radius 4.0 m is initially spinning with an angular speed of 8.0 rad/s. The angular speed is then increased to10 rad/s over the next 4.0 seconds. Suppose that the angular acceleration is constant. What is the average angular speed of t..
A train has a mass of 5.22 ? 106 kg and is moving at 79.0 km/h. The engineer applies the brakes, What is the final speed of the train
The 60kg cradle A is carrying the 12 kg pipe B at the speed of 8 m/s when it hits the rigid wall. suppose all the impacts are plastic, determine the speed of the pipe immediately after the impacts. Neglect friction.
You illuminate a slit of width 0.0667 mm with light of wavelength 721 nm, What is the width, in centimeters, of the pattern's central maximum
A 1200 kg car pulls a 480 kg trailer. The car exerts a horizontal force of 3540 N against the ground in order to accelerate. What force does the car exert on the trailer
A river flows due south with a speed of 2.30 . A man steers a motorboat across the river; his velocity relative to the water is 4.40. What is the velocity of the boat relative to the earth
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