Answer:
I think 767.8
Explanation:
I first did 10 times 22 bc that little carrot sign means squared so I did 10 times 22 and that equaled 220, then I did 3.49 times 220 and that is the answer which is 767.8
potential energy because it has a potential to roll down the hill, creating kinetic energy. it is idle
Answer:
i) 
ii) 
ii) 
Explanation:
As the initial and final states of the sample are the same, the ΔU of the sample is, for the three cases
since 
i)Reversibly
so
can be calculated by

and because of the first law of thermodynamics

ii)Irreversibly with 
we can calculate
by the law of ideal gases
then w can be calculated by

and

iii)a free expansion
so
(there's no work at vaccum) and 
In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.!!!!!! :)