A student is investigating temperature changes at nature preserve on a hot, clear day. Each hour, the student takes two temperatures: one over the ground, and one over the water of a lake. During this investigation, which observation is the student MOST LIKELY to make?

Could someone . i have tried to solve myself but my calculation is off

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,?

What causes the development of most clouds and precipitation in the atmosphere?