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Electrons produced by a certain device are observed to travel in a circular path with a radius of 4.4 cm when placed in a uniform magnetic field whose strength is 47 MN/C. What is the speed of the electrons emitted by this device? [You should express this speed as a fraction of c.] Hint: This electron is really moving fast! You should use the fully relativistic expression for momentum p=mv? where ?=(1-(v/c)2)-1/2.
A 76 kg jumper lands stiff-legged on the floor and changes his velocity from -8 m/s to zero in 0.3 seconds. what happens to the ground reaction force
An interplanetary spaceship passes through the point in space where the gravitational forces from the moon and the earth on the ship exactly cancel. How far from the center of the earth is it
An electrical coil is made by winding copper wire around a core. What is the resistance of 50,000 turns of a measure wire at an average radius of 2.0"? The 16 gauge wire has 0.075" diameter.
When a large star becomes a supernova, its core may be compressed so tightly that it becomes a neutron star, what is the speed of a particle (in km/s) on the star's equator
In Fig. 15-53, three 18000 kg ore cars are held at rest on amine railway using a cable that is parallel to the rails, which areinclined at angle θ = 34°. The cable stretches 21 cm justbefore the coupling between the two lower cars breaks, detachin..
A small glass bead has been charged to + 30{\rm nC}. What is the magnitude of the acceleration of a proton that is 3.0{\rm cm} from the center of the bead
a stationary particle of charge q 2.4 times 10-8 c is placed in a laser beam an electromagnetic wave whose intensity
F ind the speed of the golf ball just after impact
At an air show a jet flies directly toward the stands at a speed of 860 kilometer per hour, emitting a frequency of 2800 Hertz, Find what frequency do they receive as the plane flies directly away from them
A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit by a bat. The batter hits a pop-up such that after hitting the bat, the baseball is moving at 57.0 m/s straight up. The ball has a mass of 145 g and is..
question a person moves a full sams club shopping cart mass80.0 kg from rest to a velocity of 1.30 ms over a distance
Sirius is about 9.0 light-years from Earth. How far is the trip according to you and How long would the trip take according to an Earth-based observer
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