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A long solenoid has 150 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.40 cm perpendicular to the solenoid axis. The speed of the electron is 0.056 c (c = speed of light). Find the current i in the solenoid.
A 1.0 kg block of ice is resting at the top of a spherical ball of ice that has a radius of 1.0 meters. At what angle does the block of ice leave the surface of the sphere
A straight, stiff, horizontal wire of length 30 cm and mass 60 g is connected to a source of emf by light, flexible leads. A magnetic field of 1.5 T is horizontal and perpendicular to the wire. Find the current necessary to float the wire; that is, f..
A transformer has 20 turns of wire in its primary coil and 40 turns on its secondary coil. What is the power delivered to this transformer
During a stage production of Peter Pan, the 53.5 kg actress playing Peter has to fly in vertically (descend). To be in time with the music, compute the tension in the wire supporting the actor
Plane-polarized light passes through two polarizers whose axes are oriented at 37.0 degrees to each other.If the intensity of the original beam is reduced to 14.55 , what was the polarization direction of the original beam, relative to the first pola..
kilograms of water are changed from ice at 0?C into liquid water at 0?C, determine the change in mass of the water
When operated on a household 110-V line, typical hair dryers draw about 1650 W of power. What is the resistance of the dryer
What is the pressure (in kPa) exerted by an object that has a base which is 2cm by 4cm nd a weight of 45N.
A person pulls a toboggan for a distance of 37.8 m along the snow with a rope directed 26.7 ° above the snow. The tension in the rope is 99.2 N. How much work is done on the toboggan by the tension force
A red laser pointer with a wavelength of 635 nm is shined on a double slit producing a diffraction pattern on a screen that is 1.91 m behind the double slit. The central maximum of the diffraction pattern has a width of 4.15 cm
a 1490 kg car has just passed a diner. the closest the car came to the diner was r=40.5, what is the current magnitude of the angular momentum of the car about the diner
A square loop of wire surrounds a solenoid. The side of the square is 0.1 m, while the radius of the solenoid is 0.025 m. The square loop has a resistance of 30 W. The solenoid has 500 turns and is 0.3 m long. The current in the solenoid is increa..
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