Will make brainlest if which of the following best describes the term "air resistance"? a. the density of the air around an object b. the force of the air pushing on a moving object c. the weight of the air pushing down on an object d. the temperature of the air around a moving object

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,?