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A falling metallic ring enters a region with constant and uniform magnetic field (B=5T). 1. If it takes one second to fall from rest from height h, what is the magnitude of the magnetic force acting on an electron in the ring as the ring crosses the boundary? 2. what is the direction of this force?
Find the flux of Earth's magnetic field of magnitude 5.00 cross 10-5 T through a square loop of area 20.0 cm2
A proton (mass 1 ) is shot toward an unknown target nucleus at a speed of 2.75×106 . The proton rebounds with its speed reduced by 25 while the target nucleus acquires a speed of 3.01×105 . What is the mass, in atomic mass units, of the target nucleu..
A ray of light is refracted from a fluid into glass(n=1.6). The incident angle is 40 degrees and the refracted angle is 30 degrees. What is the index of refraction of the fluid
At time t=0, a 2650kg rocket in outer space fires an engine that exerts an increasing force on it in the + x direction. What impulse does the engine exert on the rocket during the 1.50s interval starting 2.00s after the engine is fired
For the system shown , the block has a mass of 1.5 kg and the spring constant k=8.0 N/m. find the number of oscillations made by the block during the time interval required for the amplitude to fall to one-third of its initial value
Two disks of identical mass however different radii (r and2r) are spinning on frictionless bearings at the same angular speed ω0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force among the surfaces..
A wire has a diameter of 1.74 mm and a length of 37 m, What is the resistivity of the wire?
Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 290 ? rad/s. One such flywheel is a solid, uniform cylinder with a mass of 390 kg and a radius of 1.06 m. (a) What is..
A 1.03 kg mass is attached to a spring of force constant 11.0 N/cm and placed on a frictionless surface. By how much will the spring stretch
An astronaut orbiting the Earth is preparing to dock with a Westar VI satellite, Determine the speed of the satellite
1 the electic field between two large conducting plates is uniform 100.0 knc pointing from plate a to plate b. the two
Find the initial speed of a projectile if after being launched horizontally 2.0m above the floor landed at a horizontal distance of 3.0m from the launcher
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