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An electron with kinetic energy K is traveling along the +x axis, which is along the axis of a cathode-ray tube. There is an electric field E= 12.00 x 104 N/C pointed in the +y direction between the deflection plates, which are 0.0600 meter long and are separated by 0.0200 meter. Find the minimum initial kinetic energy the electron can have and still avoid colliding with one of the plates.
A student claims that if lightning strikes a metal flagpole, the force exerted by the earth's magnetic field on the current in the pole can be large enough to bend it. Typical lightning current are of the order of 10^4 to 10^5. Is the student's..
two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 4.90
The x-component of the electric field
A concave spherical mirror with a focal length of 15cm forms an upright image that is 5 times larger than the original object
A circular disk of mass 10.0 kg and radius 0.500 m rotates at 30.0 revolutions per second on a vertical axle, What is the final angular velocity of the combination of disks
Water at 22.0 °C is sprayed onto 0.203 kg of molten gold at 1063 °C (its melting point). What is the minimum mass of water that must be used
Computer hard drives are made of aluminum platters coated with a layer of magnetic material. How many such domains must a hard drive of 3 TB have (1 Byte = 8 bits)
The rotor of an electric motor has rotational inertia Im = 7.59 x 10-3 kg·m2 about its central axis. The motor is used to change the orientation of the space probe in which it is mounted. The motor axis is mounted along the central axis of the probe;
A light bulb has a resistance of 270. It is linked to a standard wall socket (120 V rms, 60.0 Hz). Decide the rms current in the bulb. Decide the rms current in the bulb after a 19.5 µF capacitor is added in series in the circuit.
oppositely charged parallel plates are separated by 3.65 mm. a potential difference of 600 v exists between the plates.
A screw threaded into a blind hole often traps air that can become a virtual leak in the vacuum system. Consider a 1000-liter chamber containing eight 0.635 cm diameter screws, each of which leaves a 0.0794-cm space at the bottom of a blind hole.
In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocityof +3.79 m/s, grabs him. The tackler holds onto the receiver, andthe two move off together with a velocity of +1.55 m/..
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