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carla young

carla y.

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3. In the context of Western romantic culture, the concept of the "spark" of attraction is often romanticized. However, empirical studies suggest that the spark typically FAILS to predict which of the following outcomes?

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The price/earnings ratio indicates how much investors are willing to pay for future earnings. O True O False

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Disinhibition is similar to dishabituation in that both involve a. classical conditioning. b. extinction. c. spontaneous recovery. d. novel stimuli.

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\( y=\ln \sqrt{\frac{a+b x}{a-b x}} \)

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Infertility is defined as the inability to get pregnant after 1 year or more of regular sexual activity without the use of contraception, or the inability to carry a pregnancy to a live birth. Some specialists use 2 years as the cutoff point. Discuss the ways in which we can address infertility issues. Include advancements in medical treatments, IVF, Donated Zygotes, and Adoption in your answer.

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C. Quantum diffraction of neutrons (Make drawings!) We consider a parallel, monochromatic beam of neutrons moving along and impinging on a planar screen parallel to y pierced by a slit of width 2a. Let px = p be the initial momentum of the neutrons. (Draw this.) 1/ What can you say about the initial (before the slit) dispersion and proper value of p,? Same question for x and y. Deduce how wide the beam must be. 2/ What does happen after the neutrons pass the slit? Describe the 3 diffraction cases in terms of the parameters of the system, and recall which one is the most compatible with the notion of the neutron being a classical particle. 3/ Show how passing the slit entails a change to the dispersion of the position and momentum along y Give the new y right after the slit and deduce Apy fron the Heisenberg inequality. As in the optical case. we assume that the transverse position variations stay much inferior to the longitudinal value of the position 4/ Deduce from the previous question that the neu- tron beam now has an angular dispersion A0. Eval- uate it in terms of the initial value of the De Broglie [C.G.Shull,Phys.Rev.179(1969) 752] wavelength of the neutron. Compare it to the classical theory of diffraction of light (question 1). 5/ The plot to the right represents the results of an experimental measurement of the angular distribu- tion of a beam of neutrons of wavelength X = 4.43A diffracting through a slit of width 2a = 5.6m. Is your evaluation compatible -- in order of magnitude with these results? intensity 15,4s 20 10 0 10 20 angular position (seconds of arc)

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Problem 2 Give the formula for the general term $a_n$ for the sequences (a) -3, 2, 7, 12, 17, ....... (b) -3, 6, -12, 24, -48

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The element in Period 3, Group 5A has the outer electron configuration. PERIODIC TABLE OF THE ELEMENTS 1 H 1.006 2 He 4.003 3 Li 6.941 4 Be 9.012 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00 10 Ne 20.18 11 Na 22.99 12 Mg 24.31 13 Al 26.98 14 Si 28.09 15 P 30.97 16 S 32.07 17 Cl 35.45 18 Ar 39.95 19 K 39.10 20 Ca 40.08 21 Sc 44.96 22 Ti 47.87 23 V 50.94 24 Cr 52.00 25 Mn 54.94 26 Fe 55.85 27 Co 58.93 28 Ni 58.69 29 Cu 63.55 30 Zn 65.38 31 Ga 69.72 32 Ge 72.63 33 As 74.92 34 Se 78.96 35 Br 79.90 36 Kr 83.80 37 Rb 85.47 38 Sr 87.62 39 Y 88.91 40 Zr 91.22 41 Nb 92.91 42 Mo 95.94 43 Tc 98.00 44 Ru 101.1 45 Rh 102.9 46 Pd 106.4 47 Ag 107.9 48 Cd 112.4 49 In 114.8 50 Sn 118.7 51 Sb 121.8 52 Te 127.6 53 I 126.9 54 Xe 131.3 55 Cs 132.9 56 Ba 137.3 57 La 138.9 58 Ce 140.1 59 Pr 140.9 60 Nd 144.2 61 Pm 145.0 62 Sm 150.4 63 Eu 152.0 64 Gd 157.3 65 Tb 158.9 66 Dy 162.5 67 Ho 164.9 68 Er 167.3 69 Tm 168.9 70 Yb 173.0 71 Lu 175.0 72 Hf 178.5 73 Ta 180.9 74 W 183.8 75 Re 186.2 76 Os 190.2 77 Ir 192.2 78 Pt 195.1 79 Au 197.0 80 Hg 200.6 81 Tl 204.4 82 Pb 207.2 83 Bi 208.9 84 Po 209.0 85 At 210.0 86 Rn 222.0 87 Fr 223.0 88 Ra 226.0 89 Ac 227.0 90 Th 232.0 91 Pa 231.0 92 U 238.0 93 Np 237.0 94 Pu 244.0 95 Am 243.0 96 Cm 247.0 97 Bk 247.0 98 Cf 251.0 99 Es 252.0 100 Fm 257.0 101 Md 258.0 102 No 259.0 103 Lr 262.0 104 Rf 267.0 105 Db 270.0 106 Sg 271.0 107 Bh 270.0 108 Hs 277.0 109 Mt 276.0 110 Ds 281.0 111 Rg 280.0 112 Cn 285.0 113 Nh 284.0 114 Fl 289.0 115 Mc 288.0 116 Lv 293.0 117 Ts 294.0 118 Og 294.0

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Use variable-length argument lists (va_list) to write a function node *create_ssl(int N, ...) such that a singly linked list of N nodes is created. Assume the node structure is as follows: struct node { struct node *next; int data; }; Also show how to call the function. A va_list example: void errmsg(int code, ...) { va_list ap; char *fmt; va_start(ap, code); if (code & FILENAME) (void)fprintf(stderr, "\"%s\"", va_arg(ap, char *)); if (code & LINENUMBER) (void)fprintf(stderr, "%d:", va_arg(ap, int)); if (code & WARN) (void)fputs("Warning:", stderr); fmt = va_arg(ap, char *); (void)vfprintf(stderr, fmt, ap); va_end(ap); }

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2. Two spaceships are approaching Earth in perpendicular paths as measured from an observer on the Earth (see figure). One of the spaceships, the USS Enterprise travels towards Earth with a speed of 0.5 $c$. The other spaceship the USS Excalibur approaches Earth with a speed of 0.7 $c$. Both speeds are as measured by an observer on the planet. (20 points) i. Write down the Lorentzian speed component transformations. ii. Find the relative speed of the USS Excalibur as detected by the USS Enterprise with and without relativistic corrections.

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