By looking at how wiggily the bar is lol
D
Using the kinetic energy 1/2mv^2 formula
5*10^5 is the answer
The advantage is that we do not run out of resources and a disadvantage is that is dangerous when a “human” gets too close and gets sick by the radiation.
The force that opposes motion to moving parts is F<span>riction</span><span>
Hope this helped!
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