The fg re prowded shows the potenti e ergy 0fa proton, q.and le d nucleus. q\" 6

Question

The fg re prowded shows the potenti e ergy 0fa proton, q.and le d nucleus. q" 62e. proton s red toward a le d nucleus o..0a"10-12 om very ar with enetic energy K. 4 10 2 ay ek- how much knebc energy does it have when S 00 m from the nucleus and mo ng toward t before the colle on? 2001012 300 1012 Question 2 Acapect or w h pates sep rated by 0 1 70 m 5 charge to potentie dfference o 5,50 W All wres and bsttenes ere e sconnected end the two p stes are pulled apart to new separa on distance of 0.0340 m. f the ntial e ectnc field trength 324 N C at 15 the e ect c fie d er the increase n separation 648N 13010 e Question 3 Two charges are separated aG shown in the fguro. At which location or locat ons is the clamic patontal cqual to zero? Keep in mind that the more r-signs nd cates more charge. A and B Band C Question The fg pronded shows an electron th0 re eased from rest e The electran does not move o The electron moves to the rich. t K. 2 m. Which of the folowing best describes the electron's mot on?

Explanation / Answer

1) As per the graph , at 5 fm, the potential energy is 4*10-12 J. It means it is a turning point for the proton means the proton has stopped which makes it kinetic energy zero at 5 fm. Option 2 seems to be correct.

2) Electric field strength will be the same . E = (Q/A)/eo as everything is constant, E will remain the same. Option 2 is correct .

3) Not sure about this one

4) electron will move to the right as slope of V is positive therefore, electric field will be negative and point to the left and force on electron will point to the right and thus acceleration will be to the right side. Option 3 seems correct.

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