mercury is 57.9 x 10^6 km from the sun. venus is 108.2 x 10^6 km from the sun. if venus has a period of 224.7 earth days, how many earth days does it take mercury to make one trip around 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,?