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In a TV set, an electron beam moves with horizontal velocity of 3.1×107 m/s across the cathode ray tube and strikes the screen, 50 cm away. The acceleration of gravity is 9.8 m/s2 .
How far does the electron beam fall while traversing this distance?
In a ballistics test, a 22.0g bullet traveling horizontally at 1300m/s goes through a 30.0cm -thick 350kg stationary target and emerges with a speed of 900m/s, How long is the bullet in the target
An ?-particle has a charge of +2e and a mass of 6.64 ? 10-27 kg, What is the speed of the ?-particle and What is the radius of its circular path
question1three identical 3.60 masses are hung by three identical springs. each spring has a force constant of 4.90 and
A 4.0 uF capacitor is initially uncharged and connnected in series with a 4.0 kQ reisitor. How long will it take for the capacitor to reach one fourth of this maximum charge
If a person radiates about 67 W of power at room temperature, how long does it take for a person to radiate away the energy acquired by consuming a 260 Calorie donut?
what must be his average speed if he is heading 30.0° south of west for the remaining 54.6 min? mi/h (b) What is his average velocity for the entire trip?
It takes the elevator in a skyscraper 4.5s to reach its cruising speed of 12m/s. What is the passenger's weight before the elevator starts moving
Three polarizing filters are stacked with the polarizing axes of the second and third at 30 and 75.0, find the intensity of light emerging from each filter
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle. What is his predicted landing velocity
An open boxcar rolls at a constant speed of 6 ft/sec down a 1.5% slope. Then grain is poured in vertically downward at a rate of 500 pounds per second and at a vertical speed of 30 ft/sec when it impacts the car.
While snorkeling you hear a dolphin's sound as it approaches at 5.00 m/s. what is the actual frequency being emitted
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