As you pass a tractor-trailer truck on a highway, you notice that its trailer is slowly bouncing up and down on its springs. Is it more likely that the trailer is heavily loaded or nearly empty?

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Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

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,?