Physics, 30.07.2020 02:01 zhellyyyyy
When the magnet falls toward the copper block, the changing flux in the copper creates eddy currents that oppose the change in flux. The resulting braking force between the magnet and the copper block always opposes the motion of the magnet, slowing it as it falls. The rate of the fall produces a rate of flux change sufficient to produce a current that provides the braking force. If the copper is cooled with liquid nitrogen, the resistivity of the copper drops dramatically. How will this affect the speed at which the magnet falls toward the copper
Answers: 1
Physics, 22.06.2019 18:20, miner12924owhu4d
Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?
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Physics, 22.06.2019 21:10, palomaresmitchelle
Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate
Answers: 1
When the magnet falls toward the copper block, the changing flux in the copper creates eddy currents...
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