688_Physics ProblemsTechnical Physics

688_Physics ProblemsTechnical Physics - 28 Electric Fields...

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28 Electric Fields ANSWERS TO EVEN PROBLEMS P23.2 (a) 262 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 P23.6 251 10 9 . × P23.42 electron: 439 . Mm s ; proton: 239 . k m s P23.8 514 kN P23.10 xd = 0634 . . The equilibrium is stable if the third bead has positive charge. P23.44 (a) 57 6 . ± i Tm s 2 ; (b) 284 . ± i Mm s; (c) 49.3 ns P23.46 (a) down; (b) 343 . C µ P23.12 (a) period = π 2 3 md kqQ e where m is the mass of the object with charge Q ; (b) 4 3 a 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 at x =− 16 0 cm P23.14 149 g P23.16 720 kN C down P23.52 (a) 24 2 . N C at 0 ° ; (b) 942 . N C at 117 ° P23.18 (a) 18 0 218 . ±± ij kN C; P23.54 525 (b) 36 0 436 . ej mN P23.56 (a) mg AB cot θ + ; (b) mgA cos sin θθ + P23.20
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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