We use electrical devices that produce motion, light, and sound. which aspect of energy explains why these devices are possible?
energy can’t be created.
energy can change from one form to another.
energy isn’t made of matter.
energy can’t be destroyed.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?