Fred swings a sheet of copper in pendulum fashion between the poles of a strong magnet. The sheet slows in entering the magnetic field because the field
A) induces swirling currents in the copper and accompanying magnetic fields that resist motion.
B) experiences both air and magnetic friction.
C) is repelled by free electrons in the copper.
D) none of the above
Question 2
If you drop a bar magnet in a vertical copper pipe it will fall slowly because
A) of air resistance.
B) it induces a magnetic field in the pipe that resists motion of the magnet.
C) the copper is a good conductor of both electricity and magnetism.
D) of electron repulsion.
Heliospheric-current-sheet
copper
A sample flow sheet.
Using a water-based cleaning system helps reduce the hazards from using strong chemicals.
Use the answer sheet below the problems for your answer
Which outcome corresponds to the combination of copper(II) and sulfide ions shown in the ...