Consider the cubic equation ax3 + bx2 + cx + d = 0, (1) where a, b, c, and d are real input coefficients. Develop a matlab program to find all roots of equation (1) using the methods discussed in the Numerical Analysis class. Your program can not use the matlab built-in functions fzero and roots. You should turn in a .m file cubic24903674.m which contains a matlab function of the form function [rts,info] = cubic24903674(C) where, C = (a, b, c, d) is the input vector of coefficients, rts is the vector of roots and info is your output message. Your program will be stress-tested against cubic equations that may have: 1. (40 points) random roots; or 2. (20 points) very large or very small roots; or 3. (20 points) multiple roots or nearly multiple roots; or 4. (20 points) less than 3 roots or more than 3 roots. You will receive credit for a test polynomial only if your program gets the number of roots correctly, and only then will each correct root (accurate to within a relative error of at most 10^(−6) , as compared to the roots function in matlab) receive additional credit. Your program will receive 0 points if the strings fzero or roots (both in lower case letters) show up anywhere in your .m file.

## Consider the cubic equation ax3 + bx2 + cx + d = 0, (1) where a, b, c, and d are real input coefficients. Develop a matlab program to find all roots of equation (1) using the methods discussed in the Numerical Analysis class. Your program can not use the matlab built-in functions fzero and roots. You should turn in a .m file cubic24903674.m which contains a matlab function of the form function [rts,info] = cubic24903674(C) where, C = (a, b, c, d) is the input vector of coefficients, rts is the vector of roots and info is your output message. Your program will be stress-tested against cubic equations that may have: 1. (40 points) random roots; or 2. (20 points) very large or very small roots; or 3. (20 points) multiple roots or nearly multiple roots; or 4. (20 points) less than 3 roots or more than 3 roots. You will receive credit for a test polynomial only if your program gets the number of roots correctly, and only then will each correct root (accurate to within a relative error of at most 10^(−6) , as compared to the roots function in matlab) receive additional credit. Your program will receive 0 points if the strings fzero or roots (both in lower case letters) show up anywhere in your .m file.

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Microbial Homework 13 points Must be turned in through blackboard, typed, using a word process, and preferably using Microsoft Word. 1. (3pts) Are viruses alive? Justify your answer by indicating whether they meet the criteria of the each of the defining properties of life discussed in chapter 1. 2. (2pts)Explain why Kingdom Protista is considered an artificial grouping. 3. (3pts) Are fungi plants? How are fungi similar to and different from plants? 4.(5pts) Research a product (e.g. food or medicine) made using bacteria or fungus, and describe how the bacteria or fungus is involved in the process. (No more than three paragraphs long, get to the point). The products mentioned in the text (e.g. penicillin and cheese) and edible mushrooms do not count. CITE YOUR SOURCES!! Format doesn’t matter as long as all the necessary information is there.

## Microbial Homework 13 points Must be turned in through blackboard, typed, using a word process, and preferably using Microsoft Word. 1. (3pts) Are viruses alive? Justify your answer by indicating whether they meet the criteria of the each of the defining properties of life discussed in chapter 1. 2. (2pts)Explain why Kingdom Protista is considered an artificial grouping. 3. (3pts) Are fungi plants? How are fungi similar to and different from plants? 4.(5pts) Research a product (e.g. food or medicine) made using bacteria or fungus, and describe how the bacteria or fungus is involved in the process. (No more than three paragraphs long, get to the point). The products mentioned in the text (e.g. penicillin and cheese) and edible mushrooms do not count. CITE YOUR SOURCES!! Format doesn’t matter as long as all the necessary information is there.

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500 words essay responding to a poem needed in 12 hours from now. it is one page poem that I will provide you with. The essay details are below: Essay #1- Poetry Length: 500 words (~2 pages) MLA Format Write a formal academic essay responding to a poem we have discussed in class. Pick ONE poem on the reading schedule and discuss how the poem’s literary devices and formal elements contribute to its larger thematic concerns. Two pages is not a lot of space, so focus on the most important elements, rather than trying to include everything. Some things to think about: Figurative language: Note the images the poem describes. Does the poem seem to be literally describing things, or does the poet employ figurative language? Are there any metaphors or conceits? How does the poet move from one image to the next? Does there seem to be any theme tying the images together? Form: Look at the way the poem appears on the page. Do you notice any patterns? Is the poem written in stanzas? Does the poem employ a specific meter (iambic pentameter)? Is the poem a fixed form (sonnet)? Does the poet employ punctuation? Does the poem appear neat or chaotic? How do any of these elements relate to what the poem describes? Sound: Read the poem out loud. Do the sounds roll off your tongue, or does it feel like a tongue-twister? Is the language clunky or smooth? Does the poem use alliteration, assonance, or repetition? If the poem rhymes, are they perfect rhymes or near rhymes? Do the rhymes appear at the end of the line or in the middle? Does the way the poem sounds bring out the feeling of what it is describing? Speaker: Who is the speaker (age/gender/role)? Who are they speaking to? Is it first person, third-person, written in a persona? Is the tone formal or conversational? Is the diction simple, or does the speaker use words you have to look up in a dictionary? What might this tell us? Theme: Are there any specific ideas the poem seems to be addressing? How do the poem’s formal concerns (how it appears on the page) emphasize, challenge, or undercut these ideas? Some themes we might focus on include: identity, place, defamiliarization, freedom and constraint, violence and language, racial injustice. (You may focus on one of these or come up with your own.) Make sure this is a formal academic essay. Format your page to include page numbers, double-spacing, and 1” margins. Use Times New Roman font. Include a Works Cited page. Using any source that is not the primary text will result in a 25% penalty.

## 500 words essay responding to a poem needed in 12 hours from now. it is one page poem that I will provide you with. The essay details are below: Essay #1- Poetry Length: 500 words (~2 pages) MLA Format Write a formal academic essay responding to a poem we have discussed in class. Pick ONE poem on the reading schedule and discuss how the poem’s literary devices and formal elements contribute to its larger thematic concerns. Two pages is not a lot of space, so focus on the most important elements, rather than trying to include everything. Some things to think about: Figurative language: Note the images the poem describes. Does the poem seem to be literally describing things, or does the poet employ figurative language? Are there any metaphors or conceits? How does the poet move from one image to the next? Does there seem to be any theme tying the images together? Form: Look at the way the poem appears on the page. Do you notice any patterns? Is the poem written in stanzas? Does the poem employ a specific meter (iambic pentameter)? Is the poem a fixed form (sonnet)? Does the poet employ punctuation? Does the poem appear neat or chaotic? How do any of these elements relate to what the poem describes? Sound: Read the poem out loud. Do the sounds roll off your tongue, or does it feel like a tongue-twister? Is the language clunky or smooth? Does the poem use alliteration, assonance, or repetition? If the poem rhymes, are they perfect rhymes or near rhymes? Do the rhymes appear at the end of the line or in the middle? Does the way the poem sounds bring out the feeling of what it is describing? Speaker: Who is the speaker (age/gender/role)? Who are they speaking to? Is it first person, third-person, written in a persona? Is the tone formal or conversational? Is the diction simple, or does the speaker use words you have to look up in a dictionary? What might this tell us? Theme: Are there any specific ideas the poem seems to be addressing? How do the poem’s formal concerns (how it appears on the page) emphasize, challenge, or undercut these ideas? Some themes we might focus on include: identity, place, defamiliarization, freedom and constraint, violence and language, racial injustice. (You may focus on one of these or come up with your own.) Make sure this is a formal academic essay. Format your page to include page numbers, double-spacing, and 1” margins. Use Times New Roman font. Include a Works Cited page. Using any source that is not the primary text will result in a 25% penalty.

MSE201 Take-home, due 9/10 (1 point each) 1. Materials are characterized by: a. Macroscopic properties b. Microstructure c. Atomic level composition d. All of the above 2. Atoms are: a. Discrete units of matter b. An abstract concept c. Found in fractional units d. Lattice points 3. A typical atomic radii is roughly: a. 1 centimeter b. 1 nanometer c. 1 picometer d. 1 angstrom 4. Cubic crystal lattices have: a. Equal edge lengths b. 90° angles between edges c. Both a. & b. d. Atoms at each corner 5. Body centered cubic metals have: a. Close packed directions b. Close packed planes c. Both a. & b. d. Neither a. or b. 6. Face centered cubic metals have: a. Close packed directions b. Close packed planes c. Both a. & b. d. Neither a. or b. 7. A crystal lattice is an: a. Idealized representation of sites in a real crystal b. Exact crystal representation c. Both a. & b. d. Neither a. or b. 8. Defects in a real crystal are: a. At lattice sites b. Within interstices c. Improve properties d. Decrease properties (1 point each element) 9. Au and W have a density of 19.3 g/cc. Au 197 g/mol with a FCC structure, while W is BCC an a mass of 183.9 g/mol. a. What is a, the lattice parameter for each metal? b. Using a hard sphere approximation, what is the ratio of the gold and tungsten diameters? 10. The close packed plane of the HCP structure is the top surface, or basal plane, of the unit cell. a. Using a typical atomic radii, what is the areal atomic density of this plane? b. Is the face of the FCC structure close packed? c. Repeat 10.a. on an FCC face. d. Where is the close packed plane in the FCC structure? 11. Consider BCC, FCC and HCP structures. a. For each structure, what is the coordination number of each atom? b. Using Appendix 1 in your text, what is the general structural preference of the alkali and alkali earth metals? c. As we discussed, mixed bonding types (covalent, ionic, metallic) are possible. If pure metallic bonding favors a maximum coordination number, describe and justify plausible bonding type preferences of alkali and alkali earth metals. 12. Edge and screw dislocations are interrelated and have been discussed. a. Draw the 2-dimensional picture of an edge dislocation in diamond. b. Draw the path that allows you to determine the length of the Burger’s vector. c. How long is this vector? (diamond lattice parameter = 3.57 angstroms) MSE201 Take-home Crystal structures chemed.chem.purdue.edu commons.wikimedia.org commons.wikimedia.org

## MSE201 Take-home, due 9/10 (1 point each) 1. Materials are characterized by: a. Macroscopic properties b. Microstructure c. Atomic level composition d. All of the above 2. Atoms are: a. Discrete units of matter b. An abstract concept c. Found in fractional units d. Lattice points 3. A typical atomic radii is roughly: a. 1 centimeter b. 1 nanometer c. 1 picometer d. 1 angstrom 4. Cubic crystal lattices have: a. Equal edge lengths b. 90° angles between edges c. Both a. & b. d. Atoms at each corner 5. Body centered cubic metals have: a. Close packed directions b. Close packed planes c. Both a. & b. d. Neither a. or b. 6. Face centered cubic metals have: a. Close packed directions b. Close packed planes c. Both a. & b. d. Neither a. or b. 7. A crystal lattice is an: a. Idealized representation of sites in a real crystal b. Exact crystal representation c. Both a. & b. d. Neither a. or b. 8. Defects in a real crystal are: a. At lattice sites b. Within interstices c. Improve properties d. Decrease properties (1 point each element) 9. Au and W have a density of 19.3 g/cc. Au 197 g/mol with a FCC structure, while W is BCC an a mass of 183.9 g/mol. a. What is a, the lattice parameter for each metal? b. Using a hard sphere approximation, what is the ratio of the gold and tungsten diameters? 10. The close packed plane of the HCP structure is the top surface, or basal plane, of the unit cell. a. Using a typical atomic radii, what is the areal atomic density of this plane? b. Is the face of the FCC structure close packed? c. Repeat 10.a. on an FCC face. d. Where is the close packed plane in the FCC structure? 11. Consider BCC, FCC and HCP structures. a. For each structure, what is the coordination number of each atom? b. Using Appendix 1 in your text, what is the general structural preference of the alkali and alkali earth metals? c. As we discussed, mixed bonding types (covalent, ionic, metallic) are possible. If pure metallic bonding favors a maximum coordination number, describe and justify plausible bonding type preferences of alkali and alkali earth metals. 12. Edge and screw dislocations are interrelated and have been discussed. a. Draw the 2-dimensional picture of an edge dislocation in diamond. b. Draw the path that allows you to determine the length of the Burger’s vector. c. How long is this vector? (diamond lattice parameter = 3.57 angstroms) MSE201 Take-home Crystal structures chemed.chem.purdue.edu commons.wikimedia.org commons.wikimedia.org

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he notable Christian Existentialist that we discussed in class last week was:

## he notable Christian Existentialist that we discussed in class last week was:

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