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An electron is accelerated from rest by a potential dissimilarity of 350 V. It then enters a uniform magnetic field of magnitude 200 mT with its velocity perpendicular to the field.
a) Compute the speed of the electron.
b) Compute the radius of its path in the magnetic field.
An ?-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.38 106 V, What is the magnitude of the magnetic force on it
A ladder 2.30 m long, weighing 226 N, initially lies flat on the ground. The ladder is raised to a vertical position. Compute the work done by the force lifting the ladder
When four people with a combinedmass of 340kg sit down in a car, they findthat the car drops 0.50cm lower on its springs, What is the frequency of the car's vibration if its mass (when it is empty) is 2.0 x 103 kg
A charge of -2.87 ?C is fixed in place. From a horizontal distance of 0.0470 m, a particle of mass 7.43 x 10-3 kg and charge -9.14 ?C is fired with an initial speed of 60.0 m/s, How far does the particle travel before its speed is zero
To throw the discus, the thrower holds it with a fully outstretched arm. Starting from rest, he begins to turn with a constant angular acceleration, what will be the speed of the discus at release
A 48 kg bear slides, from rest, 9.7 m down a lodgepole pine tree, moving with a speed of 5.8 m/s just before hitting the ground. find the average frictional force that acts on the sliding bear
A 5.7 μF capacitor is charged with3.6×105 C. What potential difference exists across it
three point charges lie along a straight line as shown in the figure below where q1 6.36 microc q2 1.46 microc and q3
A 1.00 liter bubble of air at the bottom of the Marianas Trench has an inital temperature of about 0C. what is the volume of the bubble as it breaks the surface
When the power is turned off on a turntable spinning at 78.0 rpm , you find that it takes 10.5 revolutions for it to stop while slowing down at a uniform rate. How long does it take to stop after the power is turned off
Water is pumped into a storage tank from a welldelivering 23.0 gallons of waterin 35.0 seconds through a pipeof 1.00 in.2 cross-sectional area. What is theaverage velocity of the water in the pipe as the water is pumpedfrom the well?
A rock of mass 44 kg accidentally breaks loose from edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252 N. What is the magnitude of the acceleration of the rock?
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