# Rank the crystal lattice structures in order of decreasing efficiency of space in the structure.

20,691 results, page 89

### chemistry quick question

I need help with something and can't find this anywhere online. my structure looks like this OH CH2 CH3CH2CH2CHCHCH2CH3 CH3 So that OH looks like it is on a ethyl group. I need to write the IUPAC name and I wrote 3-methyl-4-heptanol but realized my mistake as that would ...

### Chemistry

Got another practice question but I'm really stumped on this one: If the [ZnCl4]^2- ion is diamagnetic what must its structure be and why - octahedral, tetrahedral or square planar? I know that diamagnetic means that all its electrons are paired and that makes it low spin (I ...

### Science help

Will someone please check my work for me? Molecules involved in a chemical reaction must meet to react. What is this concept called? entropy enthalpy collision theory<---- reaction rate 2. Which of the following equations is used to describe reaction rates? ∆H - T&#...

### Waves (8th Grade)

Predict: How resonance can cause earthquakes to do greater damage to some buildings than others. Analyze: If two astronauts were able to go on a space walk without wearing suits. Explain why they would not be able to talk to one another. Describe: How could you use ...

### history

can someone pleeease give me some helpful information, or some good points, with which i could answer this question. it will be veryyyy much appreciated. thank you compare the colonial empires of Spain, France and England in terms of their settlements, economic structure and ...

### langauge arts

Which of the following forms of poetry expresses the thoughts and feelings of a single speaker, often in highly musical verse. Limerick my answer Free verse Haiku Lyric Which of the following pairs of poetry elements best help the reader to identify the poem's tone? Rhyme and ...

### international studies

Table 1: Production Efficiency: Number of Units of Output per One Standardized Unit of Input Wine Cheese France 60 36 Germany 30 24 1.Which country should specialize in the production of Wine? Which country should specialize in the production of Cheese? Why? Calculate the ...

### Science

What is a muation? A. A mutation is a permanant change in the order of bases in the DNA. B. A mutation is a temporary change in the order of bases in the DNA. C. A mutation is a permanant change in the way a cell carries out mitosis. D. A mutation is a temporary change in the ...

### Chemistry (equlibrium direction) urgent

Consider the endothermic reaction 2 NO(g) <-> N2(g) + O2(g) -If I decrease the volume of the vessel and increasing the total pressure in the vessel, what direction will the equilibrium will shift? (left/right) (I know that decreasing the volume would shift to produce ...

### physics

A charge of -8.9 µC is traveling at a speed of 7.8 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 60°. A force of magnitude 4.0 10-3 N acts on the charge. What is the magnitude of the magnetic field?

### ENGLISH

I've been given this question for the novel THE GREAT GATSBY and have been stuck on how to answer it for hours. "Boy meets girl...boy loses girl" this novel is merely another love story. to what extentdo you share this opinion of the novel? Im not sure how to structure the ...

### economics

A perfectly competitive painted necktie industry has a large number of potential entrants. Each firm has an identical cost structure such that long-run average cost is minimized at an output of 20 units. The minimum average cost is $10 per unit. Total market demand is given by...

### Fluid Mechanics

A closed tank, rectangular in plan with vertical sides, is 1.8m deep and contains water to a depth of 1.2m. The enclosed space above the water is pressurized with air up to 35kPa. If the length of one wall of the tank is 3m, determine the resultant force on this wall and the ...

### physics

A rocket has a per-ignition mass of 1100kgs-1 producing a thrust of 10000N. How long after ignition of the fuel will the rocket lift off? also explain how is it possible for a rocket to accelerate in space. (i cant work it outt. i know it involves the rocket thrust equation ...

### algebra

For problems 13 and 14, assign each letter and a blank space to a number as shown by the alphabet table below. Use the code [1,-2_-3,7] encode the phrase "ONE QUESTION TO GO" The matrix C=[1,-2_-3,7] was used to encode a phrase to [7,-28,-25,-35,-2_-21,107,90,123,17] find C-1 ...

### stemplot one more question

No, I don't think you should round the data. The stems should probably be the numbers 13,14,15,...,19 Line them up like this with the leafs to the right S L 13 |9 14 |8,9 15 |2,8 . . . You can finish it. Starting the stems with 1 would accomplish nothing here. You can order ...

### Calculus

An air traffic controller spots 2 planes at the same altitude converging on a point as they fly at right angles to each other. One plane is 150 miles from the point moving at 450 miles per hour. The other plane is 200 miles from the point moving at 600 miles per hour. At what ...

### Biology

. Which of the following is an appropriate description of the arrangement of the cell membrane? A. Fluid phospholipid bilayer containing embedded proteins B. Rigid carbohydrate bilayer containing embedded phospholipids C. Rigid layer of phospholipids with proteins on the outer...

### RE

i have to write a poem about 'your expression of the vastness of space/universe as a poem. i have all the ideas in my head about the universe being incredibly vast. but im rubbish at writing poems. Can anyone help or find a useful website that has a poem about this task??

### Math-probablity

Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes).

### math probablity

Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes). ??????

### Calculus

Suppose that represents the temperature of a cup of coffee set out in a room, where T is expressed in degrees Fahrenheit and t in minutes. A physical principle known as Newton’s Law of Cooling tells us that dT/dt = -1/15T+5 15T + 5. a) Supposes that T(0) = 105. What does the...

### Physics

A quarterback throws a football toward a receiver with an initial speed of 21 m/s at an angle of 30° above the horizontal. At that instant, the receiver is 12 m from the quarterback. In what direction and with what constant speed should the receiver run in order to catch the ...

### Chemistry

H8P1: Polystyrene The monomer structure of polystyrene is shown below: (a) Would you expect polystyrene to be a stiff or a pliable polymer? I)Stiff II)Pliable (b) What kind of synthesis is used in the production of polystyrene from styrene monomers? I)Addition polymerization ...

### English

1. The problem is so difficult that I cannot solve it. 2. The problem is too difficult for me to solve. 3. It is too difficult for me to solve the problem. (Are the three sentences the same? Do they come from the same structure? Can we omit 'that' in Sentence 1?)

### finance

Sunshine Corporation is considering several long-term investments. Management wants to accept the two best projects, given the following data: Project A B C D E Present value of net cash inflows . . . . . . . . $24,000 $44,000 $15,000 $30,000 $50,000 Investment cost...

### math

what is the best parking space/shortest that would take the from store 1 to store 2 and back to the car?use the following information: -the distance between store 1 to store 2 is 25 yds wide. -driveway between the sidewalk and parking lot is 10 yds this all they give me please...

### physics

A 88-kg astronaut and a 1200-kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with the shuttle.What was ...

### english

I need help with a nonverbal communication types: For example, for (1)the American Sign language...I need to give examples of workplace and lifestyle. (2) Proxemics-the languge of space;example of workplace and lifestyle.Please tell me a ways to write these two so, that I can ...

### algebra

A marketing group developing online ad space is offering two payment options: Option 1: $210 set up fee plus $10/inch of the ad Option 2: No set up fee but $25/inch of the ad Let x = inches of the proposed ad, for example, x = 2 for a column ad that is 2 inches long. a) Write ...

### Social Studies

Hi I was just wondering if anyone could check my answers, Thank you!! 1. Unstable government holds back economic development most in a. Namibia b. Botswana c. Somalia d. South Africa*** 2. What was the effect of diversity in Dafur? a. NGOs b. Apartheid c. Nationalism d. ...

### English

What is the thesis statement in this essay? Instead of using emails, mail a letter to your grandparents, an aunt or uncle, or another role model who’s older than you are. We live in a fast-paced world. We use computers to send emails and instant messages. Some, though, don...

### Fucntion Changes

I am having some trouble figuring out to find where a graph decreses and increases. These are the directions: Identify the intervals where the functionis changing as requested. 5. On this graph it wants to find where it is increasing. How would I find out where the graph ...

### calculus

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x^2h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 4 cm, the edge length of the base is increasing ...

### calculus

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x^2h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 12 cm, the edge length of the base is decreasing ...

### math

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = (x^2)h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 10 cm, the edge length of the base is ...

### science

When salt (NaCI) is added to water, it disassociates into Na and Cl-ions. Which of the following types of chemical bond is present in a salt molecule? A. Covalent bond B. Ionic bond C. Hydrogen bond D. Disulfide bond i think its B An example of active immunity is the transfer ...

### English Sentence structure

All people have their own perspectives of war as being ideological human activity. or All people have their own perspectives of war a being idelogical. Which one of these is correct? If not how can i fix it. Thank You

### Space

Ugh...I put red giant on my final but everyone else put white dwarf. Can you tell me which is correct. Please and thanks. :) What is brighter a red giant or a white dwarf and why? Thanks <3

### math

Please show all of your work in the space below. Please present and organized and complete solution. A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m square. Draw two possible gardens. Determine the dimensions of ...

### Chemistry

Which of the following statements is not consistent with the results obtained in Rutherford’s gold foil experiment? A. The nucleus of an atom is positively charged. B. The nucleus of an atom contains almost all the mass of the atom. C. Atoms are composed mainly of empty ...

### Science

Which of the following statements is not consistent with the results obtained in Rutherford’s gold foil experiment? A. The nucleus of an atom is positively charged. B. The nucleus of an atom contains almost all the mass of the atom. C. Atoms are composed mainly of empty ...

### social studies

the task of economic policy is to create a properous america. The unfinished task of properous Americans is to build a Greta Society. Our accomplishment have been many; these tasks remain unfinished:> to achieve full employment without inflation;> to restore external ...

### Chemistry

I was wondering if any one knew a website with a picture of the molecular structure of Naptha- thanks! Naptha is not a pure compound, but consists of a mixture of a variety of hydrocarbons. There are several types of naptha. For more about it, see http://en.wikipedia.org/wiki/...

### BIOLOGY

1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...

### biology

1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...

### biology

1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...

### English

I know that in a sentence of three or more words or phrases we need commas, but are the sujects supposed to be capitalized if not why or why not. Sample sentence below: As I have a Web design and interactive media associate degree, I do have experience in basic Web design ...

### Computer

Home work:- Write a program to read 5 records consists of first name, last name, id and grade. Assign the grade according to the following specifications: 0<g<= 50 F 50<g<=60 D 60< g<= 70 C 70<g<=90 B 90<g <=100 A Use Stringtokenizer and buffering...

### BUSINESS IT

firstly write a program to accept the number of telephone calls made by a customer and the print out the rate in cents. secondly define a structure employee with name, category , salary, tax as a member. read the name category and salary of employee and calculate the tax as ...

### Physics-PLEASE HELP, it's due soon

Mass-spectrometer (device that selects atomic particles of different masses and charges) consists of cylindrical capacitor with inner radius R1=2.4 cm and outer radius R2=3 cm. Ions enter the mass-spectrometer through narrow slit S which is situated in between the capacitor ...

### algebra

can anyone please help me set this problem up, I can do the math but I have tried for hours... Air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by $2 for every member. Due to space limits only 125 ...

### math (5)

The monthly profit (in dollars) of Bond and Barker Department Store depends on the level of inventory x (in thousands of dollars) and the floor space y (in thousands of square feet) available for display of the merchandise, as given by the equation below. P(x, y) = -0.016x^2...

### math (5)

The monthly profit (in dollars) of Bond and Barker Department Store depends on the level of inventory x (in thousands of dollars) and the floor space y (in thousands of square feet) available for display of the merchandise, as given by the equation below. P(x, y) = -0.016x^2...

### Science

Explain the following quote: ... it was several weeks before an emigrant from Earth could adapt to it. On the Moon the human body had to learn a whole set of reflexes. It had, for the first time, to distinguish between mass and weight. A man who weighed one hundred eighty ...

### need an answer checked - algebra

Given a quadratic equation y = ax^2 + bx + c, (i) What is the effect of changing the value of the number c on the parabola? In other word, if two parabolas have the same coefficients a, and b, but different values for c, how will their graphs differ? My answer: If you have ...

### need an answer checked - algebra

Given a quadratic equation y = ax^2 + bx + c, (i) What is the effect of changing the value of the number c on the parabola? In other word, if two parabolas have the same coefficients a, and b, but different values for c, how will their graphs differ? My answer: If you have ...

### Science

I have a science exam tomorrow for 9 Space Science. I was wondering if you could help me find free practice exams, tests or questions to review for my exam. We have no way of knowing what your exam will cover. Your best bet is to review your own text, notes, and handouts.

### maths (statistics)

A coin is constructd such dt tail cn appear 4 time as likely as d head appear. Dis coin is tossd wit a fair die. Define X= no of head on coin + no of head on die. 1. Wryt out d sample space 2. Whts d prob. Of X is 14. 3. Pr(X<=10) 4. Pr(X>=14)

### Calc

f(x) = x^2 / (x - 7)^2 (a) Find the vertical and horizontal asymptotes. x= y= (b) Find the interval where the function is increasing. Find the intervals where the function is decreasing. (Enter the interval that contains smaller numbers first.) (c) Find the local minimum value...

### Grammar and Composition

please help me with this && check what i have: List 10 verbs for the word "said" that make it more specific. 1. supposed 2. whispered 3. told 4. spoke 5. believed 6. announced 7. claimed 8. conveyed 9. mentioned 10. told List 10 nouns for the word "building" that make it more ...

### Physics

Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC. A gold particle was measured to be spherical in shape with a radius of 400 nm. Note that assuming the gold atoms are small spheres that form the gold particle by packing ...

### science

Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC. A gold particle was measured to be spherical in shape with a radius of 400 nm. Note that assuming the gold atoms are small spheres that form the gold particle by packing ...

### chemistry

Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC. A gold particle was measured to be spherical in shape with a radius of 400 nm. Note that assuming the gold atoms are small spheres that form the gold particle by packing ...

### maths(pls help me out)

1.it has been reported that 83% of government employees has been migrated onto the single-spin salary structure.if a sample of 200 government employees is selected,find the mean variance and standard deviation of the number migrated onto the scheme. 2.if a fair die is tossed ...

### Calculus

Consider the function f(x)=x−15x^1/3. For the following questions, write inf for ∞, -inf for −∞, U for the union symbol, None if no answer exists, and separate by a comma if more than one answer exist. a.) The domain of this function: (-inf,inf) . b.) ...

### 12th grade

A certain parallel plate capacitor consists of two identical aluminium plates each of area 2times 10^-4 m^2.the plates are separated by a distance of 0,03mm, with air occupying the space between the plates. 1-CALCULATE THE CAPACITANCE OF THE CAPACITOR. AND 2-CALCULATE THE ...

### Science

Hi, could someone check my answers? The nucleus of an atom is made of _______. electrons and empty space protons and neutrons** protons and electrons neutrons and electrons Niels Bohr's model of an atom looked like a (n) ___. galaxy solar system** electron charge cloud Am I ...

### Security

For an essay I am completing I thought to include the opinions of different individuals. I already asked some of my friends but they seem to have similar opinions. So if you do not mind please give yours. How do you think a security professional can balance limitations, such ...

### statistics

List below are the duration (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or hwy not? 73 95 238 199 166 268 198 374 260 235 382 339 ...

### PLEASE ANSWER!!

Predict: How resonance can cause earthquakes to do greater damage to some buildings than others. Analyze: If two astronauts were able to go on a space walk without wearing suits. Explain why they would not be able to talk to one another. Describe: How could you use ...

### Math/Management

FuelMotion is an oil company that owns two oil processing plants that produce gasoline from crude oil. Their Georgia Plant produces 2 thousand gallons of premium, 1 thousand gallons of medium, and 6 thousand gallons of regular gasoline every day it operates. Their Arizona ...

### Business Communication

Will someone look over my answers and think this is okay? The assignment is and I'm suppose to find the strengths and weaknesses. I am a new publisher with some really great books to sell. I saw your announcement in Publishers Weekly about the bookseller's show you're having ...

### Physics

Rotating cylinders are not just physical abstractions: for example, they can turn a flow of the air, thus creating lift as the airplane wings. Historically people have even used rotating cylinders to power ships (although with little efficiency). NASA wrote more about this ...

### Science

What is "spatial data" (or "geospatial data")? I am not sure, I think it either all or just A. Which one would you pick? A. Information that is tied to a specific location B. A dataset containing information about cities and populations C. Data that can be mapped and analyzed ...

### Properties of the ceramic ball mill

The structure of Ceramic Ball Mill: Ceramic Ball Mill is mainly composed of a driving device, a cylinder body device, feeding device, discharging device and an electrical control device.Ceramic Ball Mill load is large, the power consumption is large, so the ceramic ball mill ...

### statistic

3. In studying the efficiency of the federal court system, we look at the random variable, X, the amount of time elapsing between the filing of a charge and the trial date. A random sample of n = 86 cases yields a sample mean of 11.4 months, with sample variance s2x = 5.8 ...

### Math

Consider the equation below. (Give your answers correct to two decimal places.) f(x) = 8sin(x) + 8cos(x) 0 ≤ x ≤ 2 (a) Find the intervals on which f is increasing. (Enter the interval that contains smaller numbers first.) ( , ) union ( , ) Find the interval on ...

### english

In a total of 200 words, write two paragraphs with about how interest rates affect our purchasing decisions. Identify the topic sentence in each by underlining it i was wnating to know what else i can put with this to complete my assignment any ideas? if you have cash, in ...

### Physics

A 97kg astronaut and a 1100kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.13m/s directly away from the shuttle. Seven and a half seconds later the astronaut comes into contact with the shuttle. What was the...

### Physics

The mass of a spacecraft is about 480 kg. An engine designed to increase the speed of the spacecraft while in outer space provides 0.09 N thrust at maximum power. By how much does the engine cause the craft's speed to change in 1 week of running at maximum power? Describe any ...

### chemistry

In my experiment I placed NaCl in glycerin for 10 minutes or more and it did not dissolve. I have looked to see if glycerin is polar or nonpolar and the information uses glycerol and glycerin interchangeably, yet they are not the same. Some information states it is polar and ...

### Science urgent help

A scientist observes that termites are fed a certain antibiotic die a starvation after a few days. The scientist also notices that certain protists that live inside the termites guy are affected by the antibiotic in a peculiar way: although the protists continue to thrive , ...

### Please help science

A scientist observes that termites are fed a certain antibiotic die a starvation after a few days. The scientist also notices that certain protists that live inside the termites guy are affected by the antibiotic in a peculiar way: although the protists continue to thrive , ...

### Algebra 2...

Palmer and teller go to the local ice cream parlor after work that offers 40 flavors of ice cream. Palmer wants a cone with chocolate mousse on top, cherry truffle in the middle, and double Dutch chocolate on the bottom. Teller wants a dish with strawberry, banana, and vanilla...

### Algebra 2

Palmer and teller go to the local ice cream parlor after work that offers 40 flavors of ice cream. Palmer wants a cone with chocolate mousse on top, cherry truffle in the middle, and double Dutch chocolate on the bottom. Teller wants a dish with strawberry, banana, and vanilla...

### Algebra 2

Palmer and teller go to the local ice cream parlor after work that offers 40 flavors of ice cream. Palmer wants a cone with chocolate mousse on top, cherry truffle in the middle, and double Dutch chocolate on the bottom. Teller wants a dish with strawberry, banana, and vanilla...

### Math

1,6,3,7,9,4,5,7=17 only plus or minus can be out in between the numbers and they must stay in the order shown EX. 1-6+3-7+9-4+5+7=17 It must equal 17 Here's a hint. Add all the numbers up first, then see what number needs to be subtracted in order to get 17. Then find a ...

### math Please help me with part b

The average cost per item, C, in dollars, of manufacturing a quantity q of cell phones is given by C= (a/q) + b where a and b are positive constants a.Find the rate of change of C as q increases. What are its units? b. Currently, 5000 phones are being made and production is ...

### Financial Management

1. Total asset turnover indicates the firm's a)liquidity. b)debt position. c)ability to use its assets to generate sales. d)profitability. 2. Some analysts believe that the term structure of interest rates is determined by the behavior of various types of financial ...

### Lang. Arts

Which sentence in the stage directions shows correct punctuation of an introductory structure? A.As he makes no move she turns away. B.As she is about to open her bedroom door, she catches sight of Mrs. Van Daan. C.As she regains her poise she goes to her mother and father and...

### English

I need help with this question. All of the following elements are enemies of coherence,except which one? 1. misplaced modifiers 2. unclear antecedents 3. placing sentences in the most understandable order 4. lack of transistional words and phrases Which answer has no negative ...

### physical

Steel rails for a train track are laid in a region subject to extremes of temperature. The distance from one juncture to the next is 4.41 m, and the cross-sectional area of the rails is 60 cm2. If the rails touch each other without buckling at the maximum temperature, 60.0 °C...

### Earth's Dynamic Atmosphere

The Sun heats the Earth. The Earth then reradiates this heat energy back into space. However, the amount of _______ in the air plays a key role in absorbing much of this exiting heat and warming Earth's atmosphere. A. carbon dioxide B. nitrogen C. oxygen D. argon my answer i ...

### GRAMMAR

Good Morning- Each of the following sentences has an agreement error in it. Match the correct type of agreement error to the sentence. a. Verb tense agreement error b. Subject/verb agreement error c. Pronoun agreement error d. Modifier placement error e. Parallel structure ...

### simplifying radicals

helo! i know how to simplify radicals but.. I don't get this one. behind of the radical (square root sign) there is a big gap before the number. Many people are saying it's a typo, but.. i don't know. there are a couple like that. example problem: square root of "space" 72 is ...

### Chemistry(Please check)

identify the functional group and indicate polar bonds by assigning partial positive and negative charges. 1) The structure CH3OCH3 is drawn out and I know that this is an ether because the O is bonded to two carbons but I am not sure how to assign the charges. I think that ...

### chemistry

I have to draw the QMM of CL2C2. For the Lewis structure i think that the two C atoms form a triple bond and the Cl atoms form single bonds. Cl | C'triple bond'C | Cl Therefore i think that the central C atom hybridizes into sp. if this is correct, my question is how do i know...

### chemistry

if compound forms by ionic bonding, which is not true? A. a positively charged atom or group of atoms attracts a negatively charged atom or group of atoms B. the net cgare of the compound is zero C. the compund consists of just two atoms, each of opposite charge. D. several ...