688_Physics ProblemsTechnical Physics

# 688_Physics ProblemsTechnical Physics - 28 Electric Fields...

This preview shows page 1. Sign up to view the full content.

28 Electric Fields ANSWERS TO EVEN PROBLEMS P23.2 (a) 2 62 10 24 . × ; (b) 2.38 electrons for every 10 9 present P23.36 (a) 200 pC; (b) 141 pC; (c) 58.9 pC P23.38 see the solution P23.4 57 5 . N P23.40 (a) 1 3 ; (b) q 1 is negative and q 2 is positive P23.6 2 51 10 9 . × P23.42 electron: 4 39 . Mm s ; proton: 2 39 . km s P23.8 514 kN P23.10 x d = 0 634 . . The equilibrium is stable if the third bead has positive charge. P23.44 (a) 57 6 . ± i Tm s 2 ; (b) 2 84 . ± i Mm s; (c) 49.3 ns P23.46 (a) down; (b) 3 43 . C µ P23.12 (a) period = π 2 3 md k qQ e where m is the mass of the object with charge Q ; (b) 4 3 a k qQ md e P23.48 The particle strikes the negative plate after moving in a parabola 0.181 mm high and 0.961 mm. P23.50 Possible only with + 51 3 . C µ at x = − 16 0 . cm P23.14 1 49 . g P23.16 720 kN C down P23.52 (a) 24 2 . N C at 0 ° ; (b) 9 42 . N C at 117 ° P23.18 (a) 18 0 218 . ± ± i j kN C; P23.54 5 25 . C µ (b) 36 0 436 . ± ± i j e j mN P23.56 (a) mg A B cot θ + ; (b) mgA A B cos sin θ θ + P23.20 (a)
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern