An electric heating element is connected to a 110 v circuit and a current of 3.2 a is flowing through the element. how much energy is used up during a period of 5 hours by the element? a. 550 wh b. 352 wh c. 1,760 wh d. 2,580 wh

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,?