Below are the homework assignments for Physics 1112K arranged by Chapter Numbers from the Text: College Physics, 8^th Edition by Serway & Vuille. In addition, answers to the even-numbered problems appear for each chapter. You can reach the chapters by clicking on the links below or by scrolling down.

 CH 15    CH 16      CH 17    CH 18    CH 19    CH 20    CH 21    CH 22    CH 23

CHAPTER 15: 1, 2, 4, 5, 6(F = k delta x where k is the spring const), 7, 10, 13, 15, 17, 19, 20, 21, 22, 27, 29   

ANSWERS: 

2) 1.57x10^-6 N,  left

4) (a) 9.2x10^-10 N, attractive
    (b) No, as long as the two charges and the separation distance doesn't change

6) k = 2.25x10^-9 N/m

10) 6 microC: F = 45.7 N, left
      1.5 microC, F = 157 N, right
      -2 microC,  F = 111 N, left

20) a = 5.27x10¹³ m/s²;    v = 5.27x10⁵ m/s

22) E = 1.63x10⁴ N/C

CHAPTER 16 (TEST 1): 3(find delta U), 4, 5, 7(assume uniform E), 8, 10*, 11, 12, 18, 20* 

ANSWERS: 

4) q = -3.2x10^-19 C

8) (a) deltaV = -2.31 kV
    (b) protons need a greater magnitude stopping potential
    (c) deltaV_p / deltaV_e = -(m_p / m_e)

10) deltaV_max = 40.2 kV

12) (a) V = 2.12x10⁶ Volts
      (b) V = 1.21x10⁶ Volts

18) v = 7.25x10⁶ m/s

20) (a) both particles will accelerate and to different unknown velocities so two equations are needed
      (b) conservation of linear momentum
      (c) v_p = 1.05x10⁷ m/s;   v_alpha = 2.64x10⁶ m/s  

CHAPTER 16 (TEST 2): 26, 27, 28, 33, 35, 36, 37, 44, 63(U = (1/2)Q V)

ANSWERS:

26) (a) C = 3 microF
      (b) Q = 36 microC

28) (a) Q = 48 microC
      (b) Q = 6 microC

36) The two capacitances are 3 microF and 6 microF

44) C_eq = 12.9 microF

CHAPTER 17: 1, 3, 4, 10, 11, 12(need the density and resistivity of Cu), 15, 33, 34, 35, 36, 38

ANSWERS:

4) 1.8x10¹⁶ protons

10) 8.89 Ohms

12) (a) 1.82 m
      (b) 0.28 mm

34) (a) $0.29
      (b) $2.6

36) (a) 50 MW
      (b) 7.1 %

38) (a) 3.2x10⁵ J
      (b) 18 min

CHAPTER 18: 2, 3, 5, 7, 9, 10, 11, 12, 30, 31, 33  

ANSWERS:

2) (a) 27 Ohms
    (b) 0.44 a
    (c) 3 Ohms

10) (a) I_A = V/R  ;  I_B = I_C = V/2R   where V = epsilon (source voltage)
      (b) B and C have the same brightness
      (c) A is brighter than B or C

12) (a) 3R/2
      (b) 6 times SQRT(R)  Volts
      (c) power to the series resistor is 16 W;  power to the two parallel resistors is 4 W

30) RC  =  Ohm Farad  =  (Volt/Amp) (Coulomb/Volt  =  second

CHAPTER 19: 1, 2, 3, 6, 9, 13, 14, 16,  37, 43, 44, 45, 46, 47, 48, 50*, 51, 55, 58, 59, 60, 65

ANSWERS:

2) (a)  (a') left;  (b') into the page;  (c') out of the page;  (d') up;  (e') into the page; (f') out of the page
    (b) the reverse of those given in (a)

6) 4.96x10^-17 N

14) (a) 0.14 N
      (b) The direction can't be determined, one can only say that it is perpendicular to both the wire
            and the B filed

16) 0.245 T,  East

44) (a) left
      (b) out of the page
      (c) lower left to upper right

46) conventional current is downward

48) (a) 40 microT  into the page
      (b) 5 microT  out of the page
      (c) 1.67 microT  out of the page

50) (a) 4 microT toward the bottom of the page
      (b) 6.67 microT  @  77 degrees to the left of the vertical

58) 2.7x10^-5 N  to the left

60) 4.8x10⁴ turns

CHAPTER 20: 1, 8, 11, 12, 13, 14, 41    (# 41 deals with inductance which is not on test 3)

ANSWERS: 

8) V = 0.1 mV

12) V = 2.26 mV

CHAPTER 21: 

ANSWERS:

CHAPTER 22: 

ANSWERS:

 CHAPTER 23: