1 May, 1999
Haverford College
Spring 1999
I have had my results for a long time: but I do not yet know how I am to arrive at them.
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Homework |
Physics 102 |
Reading |
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Syllabus |
Notes |
WWW Resources |
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Exams |
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Regular & Individual* Problems
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Set # | Date Due | Problems | |
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1 | 1/22 | 5-56, 5-59, 5-60, 16-11, 16-20 Hints: 5-60: Assume the distance from the Earth's surface to the upper atmosphere is small compared to the radius of the Earth. 16-20: You can answer this question with words only, though diagrams also help. Solutions |
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2 | 1/29 | Ch.16: 14, 15(I), 26, 27, 31, 43, 50, 55 Answers: [26(a)] -2kq/a; [43] 2pE (not 2qE); [50(b)] Q/2 Solutions | |
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3 | 2/8 | Ch.16: 38, 70, 92 Ch. 17: 6(I), 12, 24, 26 Answers: [16-70] 2.7 kq/a; [17-6] 1.76 A; [17-24](a) 0.67 A; [17-46] 3E/2R Solutions | |
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4 | 2/15 | Ch.17: 42, 46, 51, 58, 59, 70, 75 Answers: [17-46] 3E/2R; [17-70] 4r Solutions | |
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5 | 2/19 | Ch.17: 54, 83 | Ch.18: 7, 10 Solutions |
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6 | 2/26 | Ch.18: 15, 18(I), 22, 26, 31 | Ch.19: 6, 7, 11, 16 Answers: [18-18] 5.5 moles/m3 Hints: [18-31] I wouldn't try the Nernst equation if I were you. Solutions |
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7 | 3/5 | Ch.19: 25, 34, 37, 46 Solutions | |
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8 | 3/15 | Ch.20: 3, 10, 13 Solutions | |
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9 | 3/19 | Ch.20: 16, 17 (use values from the table in the back of the book), 60(I), 63
Practice exam problem Solutions |
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10 | 3/26 | Ch. 21: 4, 8, 9, 13, 18, 25, 32, 44, 53, 69 Hints:[21.44] Using dimensional analysis means trying to figure out the factors that should occur in a physics parameter and their correct powers, just on the basis of their units. Therefore in this problem you will want to suppose that the velocity v is proportional to [(Tension)^x] [mass density]^y (the ^ sign means 'raised to the power of'), and then try to determine the exponents x and y so that you come out with the right units for a velocity. [21.69] First determine the apparent frequency at the obstacle and assume that this is the frequency of the sound reflected by the obstacle. Then consider what frequency the moving bat should hear. Note that S&K's answer for this problem is incorrect. (Their listed answer is actually for problem 21-67.) The correct answer is 89,900 Hz. Practice exam problem Solutions |
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11 | 4/2 | Ch. 22: 6, 16, 20, 41, 56 Solutions Ch. 23: 3, 10, 14 Air Column Problem Practice exam problem |
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12 | 4/9 | Ch. 23: 20, 24, 30, 37, 45, 47, 49 Ch. 24: 2, 6 (make sketches using a 1:1 scale in cm) Solutions Practice exam problem |
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13 | 4/16 | Ch. 24: 10, 23, 25, 27, 42, 65 Ch. 26: 4, 8, 19 Solutions Practice exam problem |
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14 | 4/23 | Ch. 26: 30 Ch. 27: 14, 20, 21, 34, 38, 45 (I) Ch. 30: 10 (this isotope of Iodine is usually released in nuclear reactor accidents) Hints: 27-14: The alpha particle will be relativistic, so don't forget to use formula appropriate for that case. See eq.(25.8) 27-38: Make sure you discover what the fine structure constant, alpha, has to do with this problem as you work through it. 27-45: The answer to part (a) is incorrect in the back of the book. It should be 6.17x10^14 Hz. 30-10 (answer): 1 part in 16,900. Solutions Practice exam problem |
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15 | 4/30 | Ch. 30: 16, 18, 19, 21 (referring back to Chap. 3 determine the acceleration due to gravity at the surface of the neutron star and compare that to the same quantity for the sun.) 26, 34, 36, 47, 56, 60 Solutions Practice exam problem |
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16 | will not be collected (useful for exam preparation) |
Ch. 31: 3, 13, 19, 22, 30 Solutions |
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*Individual problems are labeled "(I)." All others are regular problems. |
Group Problems
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Write up (together with your partner) your choice of one of these problems to hand in at recitation. |
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Set # | Recitation Dates |
Problems |
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1 | 1/26-27 | 5.80, 6.64, 16.36, 16.67+68, 16.74 (part (a) only) |
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2 | 2/9-10 | (1) For the charge distribution in fig. 16.37 sketch the
electric field and several equipotential surfaces. Also locate
approximately any points at which the electric field vanishes. Also locate
approximately any points at which the electric potential vanishes. (2) 16.84 (3) 16.61+16.88 (+ means these are one problem together) (4) 16.62+16.63 (5) 17-62+Estimate the resistance of your finger and thumb if they contact a voltage source in parallel. |
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3 | 2/23, 24 | (1) 18-24 (and draw a circuit diagram) (2) 18-30 + 31 (+ means these are one problem together) (3) 19-4 + 5 (+ means these are one problem together) (4) 19-32 (make sure that your sketch shows the nature of the magnetic field in the problem.) |
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4 | 3.16, 17 | (1) 19-44 + 45 (+ means these are one problem together) (2) 20-32 (3) 20-35 (4) 20-62 + 64 (+ means these are one problem together) |
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4 | 4/13, 14 | (1) 24-43+48+49 (+ means these are one problem together) (2) 24-66 (3) 26-28 (4) 26-31 (+ means these are one problem together) |