- #1

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K0= 8.99*10^9, mass of proton= 1.67*10^-27kg, qe= 1.6*10^-19

V= (K0*Q)/R

1/2mvf^2= qe*delta V

First I calculated V: (8.99*10^9)(1.00*10^-9)/0.15m= 59.93V

Then I calculated Delta V: 1/2(1.67*10^-27)(82000^2)/1.6*10^-19= 35.09V

59.93V+35.09= 95V

Now, this is where I am confused. The answer is not 35V or 59V or even 95V. I really can't see any other way to solve this problem. Where am I going wrong? Any help is greatly appreciated.