Lenz's law help.. (1 Viewer)

[armageddonmuscle55]

I cant solve these 2 questions..

http://s22.postimg.org/43hergc75/IMG_0476_1.jpg

http://s27.postimg.org/ctqpdoosj/IMG_0477_1.jpg

 

[bongoli]

http://regentsprep.org/Regents/physics/phys08/clenslaw/

 

[xGhanem]

Basically you have to explain that the relative movement between the magnetic field and the metal tube would induce eddy currents, these eddy currents move in such a way that they produce magnetic fields opposing the cause, which will cause the magnet to travel slower down the tube than any normal material.