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An electron with kinetic energy 1.92 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 26.0 centimeter.
Calculate the speed of the electron.
Calculate the magnetic field.
Calculate the frequency of circling.
Calculate the period of the motion.
Sharon has a mass of 60 kg and is standing on a giant skateboard that is initially at rest and has a mass of 30kg. what is the speed of the skateboard
if the pressure of the 3.0-cm3 volume is reduced to 1.0 x 10-11 pa an extremely good vacuum while the temperature
A transformer on a pole near a factory steps the voltage down from3600 V (rms) to 120 V (rms). compute the power delivered to the primary
Two long parallel wires each carry a current of 5. A directed to the east. The two wires are separated by 8 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires.
A student investigating circular motion places a dime 10 cm from the center of a 33 &1/3-rpm record on a turntable. The record player can accelerate at 1.42 rad/s^2. Why does the dime slide outward
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.61 km. What is the direction of the couples displacement
Suppose that the net horizontal force is because of rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2. What is the coefficient of friction for the tire under low pressure.
If, on other hand, she first kicks it to player 2, who then kicks it into the net, the ball undergoes two successive displacements, y and x. What are the magnitude and direction of x and y.
A 150 g block of ice at 0 C is dropped into 350 g of water at 25 C, compute the final equilibrium temperature
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 6.00×10?2atm. find the rms speed of the atoms
A planet with mass 7 x 1024 kg orbits a sun with a period of 1 Earth's years. The speed of the planet around that sun is constant and |v|=49600 m/s
Refer to Interactive Solution 25.21 for help with problems like this one. How far from the wall should the mirror be located
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