Moving to the next question prevents changes to this answer. tion 16
Which of the following choices lists the four known types of forces in nature in order of decreasing stren
o strong nuclear, electromagnetic, weak nuclear, gravitational.
electromagnetic, strong nuclear, weak nuclear, gravitational
o strong nuclear, gravitational, weak nuclear, electromagnetic.
strong nuclear, electromagnetic, gravitational, weak nuclear.
Moving to the next question prevents changes to this answer.
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When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

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,?