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Two ideal solenoids of radii R and 3R, respectively, have n turns per meter and each carries a current I. Both currents flow in the same direction. The small radius solenoid is placed inside the large radius solenoid so that their axes of symmetry are parallel and separated by a distance d = 2R . Neglecting any magnetic screening effects, express anaytically the magnetic field strength on the axis of the small-radius solenoid in terms of the quantities given above and the magnetic permeability of a vacuum.
A high-voltage transmission line with a resistance of 0.29 /km carries a current of 1030 A. The line is at a potential of 690 kV at the power station and carries the current to a city located 162 km from the station.
a force of magnitude 7.50 N pushes three boxes with masses m1 = 1.30 kg, m2 = 2.80 kg, and m3 = 5.30 kg. Find the magnitude of the contact force between boxes 1 and 2
Two forces F1 (60.0 N) and F2 (45.0 N) pull a box sitting on the floor. Makes 15° and 75° relative to the horizontal plane, respectively. Determine the x- and y- components of the resultant force
A person pushes a 20 kg shopping cart at a constant velocity for a horizontal distance of 22 m. What is the work done by the gravitational force
parallel-plate capacitor with area 0.500m^2 and plate seperation of 2.00mm is connected to a 9.00-V battery. Find the magnitude of the charge density on each plate
A person with perfect pitch sits on a bus bench listening to the 441-Hz horn of an approaching car. If the person detects a frequency of 479 -Hz, how fast is the car moving.
A small round solid object beta equals 3/4 of mass m and radius r is released from rest at height h on a circular loop track of radius R. The objects rolls without slipping and the radius of the object is much less
Planets go around the sun in elliptical orbits. The extremely exaggerated diagram below shows a portion of such an orbit and the force on the planet at one position along that orbit. The planet is moving to the right. F|| and F are the components of ..
A stone is dropped at t = 0. A second stone, with 6 times the mass of the first, is dropped from the same point at t = 160 ms. (a) How far below the release point is the center of mass of the two stones at t = 300 ms? (Neither stone has yet reached t..
A model rocket rises with constant acceleration to a height of 3.4m , at which point its speed is 28.0m/s. Find the speed of the rocket
a train pulls away from a station with a constant acceleration of 0.49 ms2. a passenger arrives at the track 5.0 s
A thin film of polystyrene of refractive index 1.49 is used as anon reflecting coating for Fabulite (strontium titanate) of refractive index 2.409. Compute the minimum thickness of the film required
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