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A long, straight wire carrying a current of I experiences a magnetic field of B to the left and at one instant, an electron, a distance d (mm) from the wire travels at a velocity v(m/s) parallel to the wire and in the same direction as the current.
A) Find the direction and magnitude of magnetic force. Where I=3.0A, B= 7T, d=4.5cm and v=1.0x 10 4 m/s.
In some places, insect "zappers," with their blue lights, are a familiar sight on a summer's night. how many turns are in the secondary coil
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 1.4×10-7 C/m2, and the plates are separated with a distance of 1.8×10-2 m. How fast is the electron moving just before ..
A transformer with a turns ratio (secondary:primary) of 1:81 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger? V
A 4.0 kg mass is hung from a string which is wrapped around a cylindrical pulley (a cylindrical shell), what is the mass of the pulley
For my project I constructed a trebuche. A trebuche is an ancient device used for launching projectiles. It acheives this by harnessing potential energy and allowing this potential energy to convert into kenetic energy. This potential energy is st..
Though human beings have been able to fly hundreds of thousands of miles into outer space, getting inside the earth has proven much extra difficult. The deepest mines ever drilled are only regarding 10miles deep. To illustrate the difficulties associ..
An electric field of magnitude 210 V/m is directed perpendicular to a circular planar surface with radius 6.37 cm, Determine the magnitude of the magnetic field at a radial distance 14.7 cm away from the center of the circular area
Calculate the strain using the strain gauge is the based on the change in the electrical resistance of the thin wire when it deforms. The resistance R of a wire depends on its length L and area A.
A solid disk is rotating with an initial angular speed of 600 revolutions per minute. how many revolutions will it have turned through by the time it stops
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 90.7 cm as its objective and a 11.5-cm focal length lens as its eyepiece
You are part of a searchand- rescue mission that has been called out to look for a lost explorer. What minimum speed must the rocket have just before impact in order to save the explorer%u2019s life
A car of mass 1790 kg is traveling without slipping on a flat, curved road with a radius of curvature of 34 m. If the car's speed is 15 m/s, illustrate what is the frictional force between the road and the tires?
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