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

20,691 results, page 60

Biology

What cell structure/organelle would be especially common in i)cells lining the respiratory passages? ii)white blood cells that engulf and detroy invading bacteria iii)enzyme (protein) secreting cells of the pancreas

Physics

An army of armadillios is attacking Cosine Castle where the coyotes reside. If an army must clear the 45 meter walls by 5 meters, at what angle must they set their cannons (from the horizontal) in order to fire inside the castle walls? The cannons fire cannonballs at 50 m/s. ...

physics

A)When the energy input to gas fired power station is 1000MJ,the electrical energy output is 300MJ.What is the efficiency of the power station in changing the energy in gas into electrical energy b)what form does the 700MJ of lost energy take c)what is the fate of the lost energy

Criminal Justice

How does the structure of the government relate to the criminal justice system?

science

A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process? A. Test extracts from newly discovered plants for pain-killing substances. B. Read anthropological studies to discover plants...

English

Feminists argue that since the past millennium in the West have been dominated by men-whether they be politicians in power or the historians recording it all - Western literature reflects a masculine bias.and consequently, represents and inaccurate and harmful image of women....

Wild Life Biology

Animal Behaviors: If instict is physically based in the brain, and behaviors result from this brain structure, what would you hypothesis happens to the brain during learning?

Chemistry

I am also having issues for this structure as well. [CH*subscript3*CH*subscript2*C(CH*subscript3*)CH(CH*subscript3*)CHCH*suscript2*]+ it reads from left to right like this: [CH3CH2C(CH3)CH(CH3)CHCH2]+

English

In the Narrative of the Life of Frederick Douglass what is the cumulative effect of a periodic sentence, antithesis, and balanced sentence have on the story. Also how does sentence structure help to create the effect.

Math

Binomial problems: Basic Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant (as opposed to ordering the food "to go"), so it can make decisions regarding the possible ...

English!_+ check please!

Rank the following sentences from most formal to least formal by writing the appropriate number in the blank beside each sentence: 1 = most formal; 3 = least formal. /3 ___2__I was pumped. I mean, we had scored the best seats for the show. Awesome ___1__In conclusion, I ask ...

Calculus

Let x µ = x µ (u) be a parametric equation for the curve in pseudo-Riemannian four-space connecting points P and Q. Here u is any, not necessarily affine parameter. Assume that the derivative satisfies Update: Let x µ = x^µ(u) be a parametric equation for the curve in ...

University English 101

Society often forces individuals to act a certain way. The manipulation of blending into the masses in order to follow the standards of society during the civil rights era is the main point of "The Library Card" by Richard Wright. In the fourth paragraph of the fourth page he ...

MATLAB

Consider the following approximation: f′(x) ≈ Af(x − 2h) + B f(x − h) + C f(x) + D f(x + h) + E f(x + 2h). 1) Determine the values of the constants A, B, C, D, and E so that the approximation is as accurate as possible. What is the order of the error? Please note this ...

Can comeone check my answer for me. Many Thanks!

A set of data is normally distributed with a mean of 1000 and standard deviation of 100. · What would be the standard score for a score of 1100? · What percentage of scores is between 1000 and 1100? · What would be the percentile rank for a score of 1100? A. z(1100)= (1100-...

AP Calculus

The radius of a circle is decreasing at a constant rate of 0.1 centimeters per second. In terms of the circumference C, what is the rate of the area of the circle, in square centimeters per second? a. -(0.2)pie C b. -(0.1)C c. -(0.1)C/2 pie d. (0.1)^2C e. (0.1)^2 pie C

Math

The radius of a circle is decreasing at a constant rate of 0.1 centimeters per second. In terms of the circumference C, what is the rate of the area of the circle, in square centimeters per second? a. -(0.2)pie C b. -(0.1)C c. -(0.1)C/2 pie d. (0.1)^2C e. (0.1)^2 pie C

AP Calculus

The radius of a circle is decreasing at a constant rate of 0.1 centimeters per second. In terms of the circumference C, what is the rate of the area of the circle, in square centimeters per second? a. -(0.2)pie C b. -(0.1)C c. -(0.1)C/2 pie d. (0.1)^2C e. (0.1)^2 pie C

Calculus1

The radius of a sector of a circle is increasing at a rate of 3 cm/sec while the area is decreasing at a rate of 1 cm2/sec. At what rate is the angle of the sector changing when the area is 20 cm2 and the radius os 5cm?

Poetry

This is my poem. :P Does it fit into the theme of loneliness? Loneliness Never Sleeps. I scream, call for help, my lungs frozen in ice I can't breathe, I'm alone, my screams don't suffice My heart pounding hard, wishing someone would hear I begin to taste my biggest fear My ...

physics

A variable capacitor is connected to an ac source. what effect does decreasing the capacitance have on the reactance and current in this circuit? Reactance Current A) increases decreases b) decreases no change c) decreases increases d) increases increases e) no change no ...

physics

A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. (a) If the engine receives 6.45 kJ of heat energy from the reservoir at 520 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K? (b) How much mechanical ...

physics

A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. (a) If the engine receives 6.45 kJ of heat energy from the reservoir at 520 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K? (b) How much mechanical ...

physics

A pulley system reduces the effort of lifting a big bucket of water from a shallow well. The 100-newton bucket is lifted to a height of 5 meters with an unknown input force. If 50 meters of rope is pulled to lift the bucket the desired height and the percent efficiency of the ...

business

1 for a large company stock/mutual fund would you expect the betas to be positive or negative for each of he factores in a fama french multifactor model? 2 What do you observe abouth the bata coefficients for the different mutual funds? comment on any similarities or ...

Calculus

1.At noon of a certain day,ship A is ^0 km due north of ship B. If A sails east at 12 km/hr and B sails north 9 km/hr,determine how rapidly the distance between them is changing 2 hrs later. Is it increasing or decreasing? 2.At a given instant the legs of a right triangle are ...

physical

Which of the following statements is true concerning physical space in physical education

Physics

#1.) A solar photovoltaic panel has an area of 3 m^2. The panel's maximum power output is 595 W @ 1100 W/m^2. a) What is its efficiency? b) If the panel receives 1300 W/m^2 of irradiance, what is its new power output? #2.) A solar voltaic module has a maximum output of 200 W...

Physics

#1.) A solar photovoltaic panel has an area of 3 m^2. The panel's maximum power output is 595 W @ 1100 W/m^2. a) What is its efficiency? b) If the panel receives 1300 W/m^2 of irradiance, what is its new power output? #2.) A solar voltaic module has a maximum output of 200 W...

Ela

All of the following sentences are complex EXCEPT A) Even though acid rain can have damaging effects, few people know much about it. B) Acid rain has been studied as an environmental issue by the government since the 1970s. C) Since they erode statues and corrode steel ...

Government

With regard to public opinion, the Supreme Court a. ignores it completely in order to make decisions that are based on enduring values rather than the public’s passing whims. b. remains uninformed about it because justices stay on the bench for life and never face the public...

Social Studies

8. Which of the resolutions at Seneca Falls Convention was most inspired by married women's inability to own property? () desire for improved education in order to understand property contracts (x) belief that women should have voting rights in order to change property laws...

Chemistry Please Help!!!

Airbags contain a mixture of sodium azide, potassium nitrate, and silicon dioxide. A sensor detects a head on collision that cause the sodium azide to be ignited and to decompose forming sodium and nitrogen gas. This gas fills a nylon or polyamide bag such that the front face ...

Chemistry

My chemistry teacher said that the pCO2 value increases during hypoventilation. Why is that? If hypoventilation causes shortness of breath, would that not increase the CO2 concentration, therefore decreasing pCO2? Because if you think about pH, a larger H concentration causes ...

Chemistry

My chemistry teacher said that the pCO2 value increases during hypoventilation. Why is that? If hypoventilation causes shortness of breath, would that not increase the CO2 concentration, therefore decreasing pCO2? Because if you think about pH, a larger H concentration causes ...

math

Search: ralph's clothing company has an order for 20 skirts to be made from a bolt of fabric that has 28 1/4 yd of fabric. the customer wants as many flared skirts as possible, and the rest can be straight skirts. a straight skirt uses 1 1/4 yd of fabric, and a flared skirt ...

5th Grade Math

Once a month a fast food chain offers a special when a coach brings in a team. Buy 5 hamburgers and get one free. This month, a team goes in after their game. Each person had one hamburger. Each of the players had a soda @ $.50 each and shared an order of french fries ($.95 ...

english

At the foot of these fairy mountains the voyager may have descried the light smoke curling up from a village whose shingle roofs gleam among the trees, just where the blue tints of the upland melt away into the fresh green of the nearer landscape. It is a little village of ...

phsyical science

compare an atoms structure to a ladder. what parts of the ladder correspond to the energy levels of the atom/ identify one way a real ladder is not a good model for an atom.

social studies

Which of the following is not an objective of the Constitution? a. Protect the rights of the minority b. Establish the structure of the government c. Protect individual worth and dignity of all people d. Protect the rights of the majority

chemistry

I also have to write all the structural formulas of the isomers of the compund hexane C6H12. i was doing research and i was finding that there could be 9 or 11. then i came across a site that said it is not planar. so does that mean that it is a ring structure and there is ...

Sociology

the variable that sociologists exphasize the most as being the determining motivation for our thinking and behavior? A. Random chance events B. Natural born in instincts C. Inherited genetic structure D. ones society and social location My answer is D is that the right one. ...

chm

The Lewis dot structure of ammonia, NH3, reveals that it has one lone pair of electrons and three bonds (each to a hydrogen) around the central nitrogen atom. According to VSEPR theory, what molecular shape will it have? i thought it was tetrahedral but its wrong. what and why...

English

6 Which of the following descriptions best conveys the author’s negative attitude toward television? (1 point) communications instrument form of national linkage toy medium for selling Use the passage to answer the question. 8 Which statement is true about facts and opinions...

Child Care Managment

which of the following is is best suited to a formative assessment of progress? A, muscular strngth and endurance B body fat analysis C. Flexibility D awareness of selfand space. I think is A. But if Im wrong can somebody help me. thanks.

phys3

A biologist is studying growth in space. He wants to simulate Earth's gravitational field, so he positions the plants on a rotating platform in the spaceship. The distance of each plant from the central axis of rotation is r = 0.11 m. What angular speed is required?

Science help

Which of the following technologies is a result of space research and development? A.improved pacemakers B. equipment to allow police to change traffic signals C. cochlear implants to help deaf people hear D. all of the above

about microsoft office word

I'm typing my research paper and I'm going to indent the left,right, top, and bottom by 1 inches. what am i going to do? i have another question, how will I double space it?

Chemistry

If 200 ml of gas held at a constant pressure has a starting temperature of 300 degrees K, and it expands to fill a 300 ml space, what would be the new temp? (I got 454.54) Thanks!

BUISNESS AND TECHNOLOGY

4. List your references according to APA guidelines in the space below. You are required to use at least one outside source to support your viewpoint and this source can be the textbook.

math

true or false A one-story building, having dimensions of 80 ft. x 50 ft. x 20 ft. high, encloses a volume of 8000 cubic feet, and has a floor space of 400 square feet.

Physics 103

So I have a question about magnetism. A charged particle moves through a region of space and experiences no magnetic force. Does that mean that the magnetic field is zero?

Physical Science

A rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Earth to the Moon, which is 380,000 km?

Space Exploration

ou tline the conditions for liquid water to exisit on a planet. -the planet needs to have a right temperature -protective atmosphere -habitable zone are these the only reasons?

Science (Atmosphere)

What happens to the energy absorbed by Earth's surface and atmosphere? They get radiated back into space as longer wave radiation. Is there anything else I should add to this answer? Thanks.

business 115

List your references according to APA guidelines in the space below. You are required to use at least one outside source to support your viewpoint, and this source can be the textbook.

chemistry

Which is not a true statement concerning electromagnetic radiation? It travels through space at 3.0 x 1010 cm/s. It travels in a straight line. It has the fastest speed possible in nature. The sun is a source of it.

Science

The amount of space something occupies is its volume. Volume can be measured using a A. triple beam balance B. graduated cylinder C. spring scale D. meter stick I think its B.

physics college

A rocket booster fires in space with a force of 500N and moves the 10kg satellite from rest to motion in 2.1 seconds. Find the acceleration? What is the final speed of the satellite?

math help

) Brian has 96 feet of fencing to enclose a rectangular space in his yard for his dog. He wants the rectangle to be twice as long as it is wide. Write and solve an equation to find the dimensions of the rectangle.

physics

The Sun radiates about 4 × 1026 J of energy into space each second. How much mass is released as radiation each second? The speed of light is 3 × 108 m/s. Answer in units of kg

College Physics

1. In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (18 mm, -3 mm), and +3 mC at (-8 mm, 12 mm). What is the net force on the −2-mC charge? Find the magnitude and direction (counterclockwise from the x-axis).

Physical Science

a rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Earth to the Moon, which is 381,000 km?

math

Suppose a number is chosen at random from the sample space {3, 4, 5, 6, 7}. Find the probability as a fraction and percent. Round the percent to the nearest tenth. Please show your work. P(less than 3)

HELP PRE-CALC ASAP

An experiment consists of selecting a number at random between 0 and 9 inclusive, and a letter of the English alphabet. What is the size of the sample space of this experiment? A) 35 B) 36 C) 52 D) 234 E) 260

Physics

Calculate the energy needed to accelerate a spaceship of mass 10,000 kg to a speed of 0.3c for intergalactic space exploration. Compare with the projected energy usage of the Earth in a decade 10^22J?

Physics

What is the apparent weight of a 70-kg astronaut 3800 km from the center of the earth's moon in a space vehicle moving at constant velocity and acceleration toward the moon at 2.9m/s^2? State the direction in each case.

Physics

A 5000 kg space shuttle starts at rest and linearly increases its thrust from 0N to 1000N across a displacement of 2000 meters. Calculate the total amount of work done on the shuttle.

Physical Science

At 27 degrees Celsius and 750 mm Hg, a sample of hydrogen occupies 5.00 L. The space it occupies at STP = 4.49 L. Should the 4.49 L be rounded to 4.5 L? If not, is there a specific rule that explains rounding for this type of problem?

Math

Shelly and Andy are playing a game using a number cube and flips the coin. What are all possible outcomes during one turn? How many outcomes are in the sample space?

Math

If two balls are selected randomly without replacement four a bag containing 4 red and 8 green balls. List the element of the sample space corresponding probabilities.

algebra

The diameter of a valve for the space shuttle must be within 0.001 mm of 5 mm. Write and solve an absolute-value equation to find the boundary values for the acceptable diameters of the valve.

Chem

Directions: Use the principles of atomic structure and/or chemical bonding to explain each of the following. In each part, your answer must include references to both substances. Problem: The carbon-to-carbon bond energy in c2h4 is greater than it is in c2h6. Any help is ...

Bio(its urgent!)

according to cell theory, the cell is the basic unit of structure and function in the body. in two or more sentences, explain how this fact relates to the need for digestion. please i help! i have searched the sites but cannot find a answer...... plz help!

english

Winds stampeding the feilds under the window . Floundering back astride and blinding wet. Till day rose; then under an orange sky. ~ comment on the poets use of sentance structure i have no idea how to answer this could you please help me ?

chemistry

Draw a line-bond structure for propene,CH3CH=CH2; indicate the hybridization of eachcarbon, and predict the value of each bond angle. Can someone explain the steps, im lost with how our teacher explained, about sp2 and sp3, ect. help?

math

elow is a function the represents the sales for tickets to battle of the Bands Phoenix Music Festival. Student council needs students to buy ticket early in order to book a venue. In order to do this they made a piece scale as follows, where x is the days since February 10th. ...

math

A spherical snowball is melting so that its diameter is decreasing at rate of 0.2 cm/min. At what is the rate is the volume of the snowball changing when the diameter is 18 cm? The volume is changing at a rate of

Biology (AP)

part of the Essay question off of 2003 exam: Describe how the properties of water contribute to the plasma membrane structure I would love any help I can get. thnx! if the membrane lets the water through then it is called osmosis

Science

Watson and Crick, two amazingly intelligent scientists of our time, realized that DNA’s structure had to be compatible with four separate roles. Can a few of you please comment on these four roles and why they are so important?

english 1 honors

Can someone tell me the sentence structure of this sentence? In Frank R. Stockton's short story "The lady or the tiger?" one knows that the semi- barbaric princess motions to her lover to pick the door that contains the tiger.

financial

a company has determined that its opitmal capital structure consists of 40 percent debt and 60 percent equity. given the following information, calculate the firms weigted average cost of capital rd=6% tax rate=40% p0=$25 growth=0% do=$2.00

health

i need some sites on then few questions i cant find anything on this can someone help me ?.... thanks! Government role and level of effect: national, state, and local Identify the government structure. Discuss the function and role for this issue

Chemistry

Predict the formal bond angles about the central atom for the following molecules: TeBr4 Express your answers using three significant figures separated by a comma. What are the bond angles for an octahedral structure and how many?

Please someone explain to me

My homework says describe how the exterior of a structure differ of share similar design art elements from the interior. Does that mean elements of art, or features of architecture like arches, windows, etc?

AP CHEM

A secondary alcohol results from the attachment of a hydroxy group to which carbon atom? C | <---GIVEN STRUCTURE C1-C2-C3-C4 A) C1 B) C2 C)C3 D)C4 Answer is C! I have to explain why, but the teacher never taught us anything about organic chem. So please explain!

Science

1. Which of the following about the suns structure is true? A.The sun has a solid surface. B. The sun has an interior and an atmosphere. * C.The sun's is similar to Earth's; it has a core, mantle, and crust. D. The sun's outermost layer is called the radiation zone.

Math

Hello! I am not asking for the answer to this question, I am asking for a step-by-step explanation. Mr. Green band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for...

Math

Arlan needs to create a box from a piece of cardboard. The dimensions of his cardboard are 10 inches by 8 inches. He must cut a square from each corner of the cardboard, in order to form a box. What size square should he cut from each corner, in order to create a box with the ...

half-life

1. The half-life of a first-order reaction is 9.89 minutes. How many minutes will have elapsed after 27 half-lives? My answer is 267.03. 2. The half-life of a second-order reaction is 2.508 days. How many days will have elapsed after 8 half-lives? My answer is 5.330. Is this ...

Chemistry

Can you check if this is correct please: Reactivity order for these metals (top being most reactive): - Magnesium (I'm not sure if Magnesium or Manganese should be at the top) - Manganese - Zinc - Copper Reactivity order for these acids (top being most reactive): - Sulfuric ...

Chemistry

Can you check if this is correct please: Reactivity order for these metals (top being most reactive): - Magnesium (I'm not sure if Magnesium or Manganese should be at the top) - Manganese - Zinc - Copper Reactivity order for these acids (top being most reactive): - Sulfuric ...

informal Logic

God must exist for there can be no other explanation for the order and complexity of the world. Some say there is no proof, but to me the proof is all around us. The conclusion of this argument is: (Points : 1) God exists There is no other explanation of the order and ...

Math-precalc

Is it possible to find a rational function that has x-intercepts (-2,0) and (2,0), but has vertical asymptote x=1 and horizontal asymptote of y=0? The horizontal asymptote and the x-intercepts parts stump me. If you can't reach y=0, then how can you get the x-intercepts? And I...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Physics

Consider an inefficient engine which draws 200 J of heat from a hot reservoir at 100oC, converts 48 J to work, and rejects 152 J to a cold reservoir at 0oC. Theoretically, how much maximum work can be produced if the efficiency of the engine is maximized? How much work was “...

Algebra

1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a) What ...

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