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A long straight solenoid of cross-sectional area 400cm^2 is wound with 10 turns of wire per centimeter, and the windings carry a current clockwise. A small ring of radius 5cm and resistance .3 Ohm is placed at the center of the solenoid. If the current in the solenoid increases from 20 to 60 A in 2.5s, find the magnitude and direction of the current induced in the ring during this period
A particle moves along the x-axis according to the equation x(t) = 2.0 + 3.0t2 - 1.0t3, where x is in meters and t is in seconds. What is its speed at that time
A toroid solenoid has a cross-sectional area of 0.460 cm2, a mean radius of 11.5 cm, and 1900 turns. If the material is removed from inside the solenoid and replaced by air, estimate the inductance of the solenoid
an unmanned spacecraft is in a circular orbit around the moon observing the lunar surface from an altitude of 49.0km .
A car drives straight off the edge of a cliff that is 58 m high. The police at scene of the accident observed that the point of impact is 121m from the base of cliff. How fast was the car traveling when it went over the cliff.
An infinitely long straight wire is uniformly charged with a positive linear charge density +lambda. Determine the electric field in the region
Find what is the magnitude of the electric force on an electron in a uniform field of strength 2930 N/C that points due east. Obtain the direction of the electric force on an electron
two identical resistors are connected first in series and second in parallel. the equivalent resistances of the two
The solar panels on the roof of a house measure 4.0 m by 5.2 m. Assume they convert 12% of the incident EM wave's energy to electrical energy. What average power do the panels supply when the incident intensity is 1.0 kW/m2 and the panels are perpe..
one electron is at the origin of a coordinate system. a second electron somewhere in the x-y plane feels a force 2.4 x
A child of mass 60.0 kilogram is rescued from a hotel fire by leaping into a firefighters' net. Find the average force on the net due to the child during the interval
A Boeing 747 jet with a wingspan of 60.0 m is flying horizontally at a speed of 295 m/s over Phoenix, Arizona, at a location where Earth's magnetic field is 49.5 µT at 58.0° below the horizontal. What voltage is generated among the wingtips?
one way to attack a satellite in earth orbit is to launch a swarm of pellets in the same orbit as the satellite but in
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