Exercise 23.13 Part A A small particle has charge-5 80 C and mass 1.90 104 kg it

Question

Exercise 23.13 Part A A small particle has charge-5 80 C and mass 1.90 104 kg it moves from point A, where the electric potential is 270 V, to point B, where the electric potential Vp 750 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 5.10 m/s at point What is its speed at point B 46 SubmitMy Answers Give Ua Incorrect; Try Again; 4 attempts remaining m/s Part B Is it moving faster or slower at B than at A? - Faster My A Give Up Correct

Explanation / Answer

partA] decrease in potential energy = increase in KE

-5.80e-6*(270-750) = 0.5*1.9e-4*(v^2 -5.1^2)

  (v^2 -5.1^2) =  -5.80e-6*(270-750)/[0.5*1.9e-4] = 29.305

v = sqrt(29.305+5.1^2)

= 7.44 m/s answer

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