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A 2.4 mm-diameter copper wire carries a 30 A current (uniform across its cross section).
a) Determine the magnetic field at the surface of the wire.
b) Determine the magnetic field inside the wire, 0.50 {\rm mm} below the surface.
c) Determine the magnetic field outside the wire 2.5 {\rm mm} from the surface.
A beam of electrons is incident on two slits separated by a distance of 2.0×10-6 m. Calculate the kinetic energy of the electrons
During a particular car crash, it takes just 0.18 sec for the car to come to a complete stop from 50 km/hour. At what rate is the car accelerating during the crash
Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 490 and 270 K, respectively. How much heat is converted into work
A sports car accelerates with constant acceleration from rest to a speed of 31.57 m/s in 4.127 s. The angular acceleration of the rear wheels is 17.75 s-2. What is the radius of the rear wheels
A 100? resistor is connected to a 120 V/60 Hz power line. What is the average power loss
A particular myelinated axon has nodes spaced 0.80mm apart. The resistance between nodes is 21M?; the capacitance of each insulated segment is 1.3pF .
q1. a rectangular conducting loop of wire is approximately half-way into a magnetic ?eld b out of the page and is free
A charged sphere of radius 10 cm has a total charge of 5 C. Calculate the potential at the surface of the sphere
A wooden board that is 50 cm long, 20 cm long, and 4 cm thick is floating in water. Rocks are then carefully placed on the top face of the board until the top of the wood just slips below the water surface. The density of water is 1000 kg/m^3 and ..
A golf club striking a golf ball imparts a force of2100N over a time of 5.06×10?3s at an angle of 35.0? above the horizontal. What maximum height does the golf ball achieve after impact
A 500 kg vehicle is cruising down the highway at 30 m/s when the driver creates an average force of 700 N by stepping on the gas. How much work was done by the vehicle during the .50km of acceleration
A snowboarder of mass 79 kg travels down the slope of height 150 m, what is the work done on her by friction
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