Rank the crystal lattice structures in order of decreasing efficiency of space in the structure.
20,908 results, page 60

PHYSICS!!
(a) Suppose 10 astronauts are sent to Mars and then back to Earth. The average power usage of each astronaut is 10,000,000 joules per day. What is the average power usage of each astronaut in watts and horsepower? (b) It will take approximately 2 years for the astronauts to ... 
PHYSICS HELP!!
(a) Suppose 10 astronauts are sent to Mars and then back to Earth. The average power usage of each astronaut is 10,000,000 joules per day. What is the average power usage of each astronaut in watts and horsepower? (b) It will take approximately 2 years for the astronauts to ... 
Social Studies
1) What statement best describes Yokohama? A) Yokohama is an ancient political center B) Yokohama is a rural farming village C) Yokohama is a large, crowded city D) Yokohama is an important mining town 2) What describes a difference between life in japan and life in the United... 
Math
The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them a 54% chance of making a $20,000 profit, a 23% chance of ... 
Math
The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them a 54% chance of making a $20,000 profit, a 23% chance of ... 
MATH
The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them a 54% chance of making a $20,000 profit, a 23% chance of ... 
MATH
The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them a 54% chance of making a $20,000 profit, a 23% chance of ... 
ap chemistry
Rank the compounds CH3OH CH3CH2OH CH3CH2CH2OH in terms of increasing evaporation rate. 1. CH3CH2CH2OH < CH3OH < CH3CH2OH 2. CH3OH < CH3CH2CH2OH < CH3CH2OH 3. CH3OH < CH3CH2OH < CH3CH2CH2OH 4. CH3CH2OH < CH3CH2CH2OH < CH3OH 5. CH3CH2CH2OH < CH3CH2OH &... 
Math
Which of the following are the numbers NOT in correct order from SMALLEST to LARGEST? A.)3.1, 3.5, 0, 0.7, 1.5 B.)2.3, 1.5, 0.1, 0.33, 0.35 C.)6.1, 5.33, 4, 0.25, 0 D.)2.3, 1.5, 0.9, 0, 0.09 PLEASE HELP ME!!! Draw a number line, something like this. 4...3...2...... 
algebra
elmer burns works for a readymix concrete cmpany. elmer receives an order for 3.5 cubic yards of concrete. this mixture of concrete contains sand, cement, gravel, and water, for each pound of water, there are 5 lb of sand, 2 lb of cement, and 6 lb of gravel. find (a) the ... 
Math
The daily temperature is decreasing at a rate of 2 degrees Fahrenheit T represent the daily high temperature now right then expression for the high temperature in five days the current at high temperatures need to address for hifi high temperature in five days check into you ... 
math
Scott, Mike, and Holly shared an order of French fries. Scott ate x fries. Mike ate one more than twice the amount of fries that Scott ate. Holly ate 5 fewer fries than Scott did. If there were 6 fries left, how many fries were in the order? a. x5 b. x c. 2x+`1 d. 4x4 e. 4x+... 
physics
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 276km/h on a track with a total length of 1520m. If a particular car covers the first half of the track at an average speed of 246km/h, what minimum average speed must it have in ... 
Physics
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 230 km/h on a track with a total length of 1810 m. If a particular car covers the first half of the track at an average speed of 245 km/h, what minimum average speed must it have ... 
Electrochemistry
In lab, we did an experiment with electrochemical cells with solutions of ZnSO4, CuSO4, Al2(SO4)3 and MgSO4 and their respective metal electrodes. There are a couple of postlab questions that I'm not sure about: (1) Summarize Part A with a data table containing the headings: ... 
Marine Science
Organisms on a rocky shore compete for all of the following except? 1) Affection 2) Nutrients 3) Space 4) Light I think the answer might be light but im not sure. 
History
Can you please explain this to me the best that you can? GP would create tolerance because everyone would be in each other's space due to overpopulation. What is a good follow up sentence to put after that. 
Math
What's the difference between sample space and event in a lottery game (where 50 numbers are drawn and you have to guess/pick six numbers?). Can you give examples of both? 
Science
What kind of information has the International Space Station provided us? And what have we benefited from the information? I'm doing a project and I can't find these answeres ANYWHERE!! Any answers or websites would be GREAT!! Thank you!!! 
Physics
The international space station ISS travels now with a speed of 7352 m/s. Calculate a) the radius of its orbit; b) the height of the orbit; c) the period of its motion around Earth. 
physical
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 moon which is 380,000 km 
physics
Two charged particles q1 and q2 were initially at rest at a seperation of 2m in a gravity free space. Then evaluate after what time seperation between them will be 8m (neglect electromagnetic losses) . 
science
Suppose you are an astronaut making a spacewalk outside the space shuttle. In your excitement about your walk,you use up all the gas in your reaction jet. How do you get back to the shuttle 
statistics
A test has 1 true false question and 2 multiple choice questions(A B C D). Draw a tree diagram and determine the sample space for the possible ways to answer the test. 
physics
Severed particles act on each other although separated by time and space. What is the relation between dark matter and the effect on the particles when exposed to neutron bombardment? 
Physics
The mass of the Earth=Mg=5.97x10^24 kg. The radius of the Earth=RE= 6.38 x10^6 m. A) What is the weight of the 75 kg person? B) Determine the acceleration due to gravity aboard a space shuttle at an altitude of 400km. 
Need Help asap for math!
A plane is steering at S83degreesE at an air speed of 550 km/h. The wind is from N70degreesE at 85km/h. Find the ground velocity of the plane to 1 decimal space. 
fundamental concepts
Free play, eating a snack, painting, hearing a story, and so forth are related to which of the following learning concepts? A. Space B. Classification C. Size D. Time a. 
Weight Is Force! Science
A space ship has a mass of 9000kg. The spaceship is launched from the Earth and lands on a distant planet where it has a weighted of 39000 N. What is the acceleration of gravity on this planet? 
Discreet Mathematical Structures
Use proof by contraposition to prove the following statement: If A is the average of two positive real numbers then one of the two numbers is greater than or equal to A. Proof. Domain: positive real numbers P: A=(x+y)/2 Q: x is greater than or equal to A or y is greater than ... 
geometry and combinatorics
An equilateral triangle with side length 33 is divided into 33^2 smaller unit equilateral triangles each with side 1, forming a triangular lattice. We color each segment of length 1 either Red, Blue or Green, subject to the condition that each small unit equilateral triangle ... 
physics
a man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.50 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the mechanical advantage of the lever? What is ... 
chemistry  Bonding
#1) Draw the following ions using a Bohr diagram: b)oxygen: i got [oxygen:2)8)]2 (the 2 is an exponent) but the answer said [oxygen: 2)8)8)]2...is this right? d)fluorine: i got [fluorine:2)8)]1 and the book says [fluorine: 2)8)8)]1..again, is the book making a mistake? #8... 
English Sentence Structure
There are many potential elements that need to be considered before the main root to war being beneficial is found. I wrote this sentence is there another way to reword it so it can sound stronger (using the same basic idea that I had) 
psychology
The physical structure of the auditory sense is responsible for transmitting messages about balance to the brain. it does this through: A) The "hammer" and " anvil" bones B) sound waves C) the part of the auditory nerve that is not involved in hearing D) hair cell I think is C 
chem
Potassium chloride crystallizes with the rock salt structure. When bathed in Xrays, the layers of atoms corresponding to the surfaces of the unit cell produce a diffracted beam of Xrays (¥ë=154 pm) at an angle of 6.97¨¬. From this, the density can be calculated and is ... 
biology
The structure of chromosomes is best explained as DNA broken apart into separate genes. extended to form very long, thin molecules. wrapped tightly around associated proteins. coiled up into a ball. 
Science (Human Anatomy)
THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Relate their structure of a neuron to the anatomy of the cerebral cortex and spinal cord Be sure to discuss the locations of soma, axons, dendrites, and supportive cells in each area. 
History
Is anyone available to help me? I need to create a metaphor to describe the structure of our federal government The example they provided is "The American Government is a tripod; without each post, it would collapse." I can't find anything that fits very well. Any ideas on ... 
Social Studies
"Spreading light...without taking part in the affairs of the world...seeing as a trap...all expantion into Africa or the Orientfor a great nation to live this way, believe me, is...in less time than you may think, to sink from the first rank to the third and fourth." Jules ... 
physics
A car's internal combustion engine can be modeled as a heat engine operating between a combustion temperature of 1500∘C and an air temperature of 20∘C with 30% of the Carnot efficiency. The heat of combustion of gasoline is 47 kJ/g. Q) What mass of gasoline is burned to ... 
Astronomy
Consider dropping a Professor with an estimated mass of 80 kg from a safe, large distance, onto a SMBH with a mass of 10^7MâŠ™. The Prof makes an impact at the Schwarzschild radius, whereby he converts all of the gained kinetic energy into radiation with a 100% efficiency... 
physics
A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.00 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the mechanical advantage of the lever? What is ... 
Chemistry please help
A general reaction written as 1A + 2B > C + 2D is studied and yields the following data: Expt (A). (B) initial (C)/t 1. 0.150. 0.150. 8.00 x10^3 2. 0.150. 0.300. 1.60 x10^2 3. 0.300. 0.150. 8.00 x10^3 What is the order of the reaction with respect to B? What is the ... 
Math
Bett, Cathy, Isabel, Lani and Ursua run an 800meter race. Betty beat Cathy by meters. Alma finished 12 meters behind Lani. Bettty finished 5 meters ahead of Ursula but 3 meters behind Lani. Isabel finished halfway between the first and last person. In what order did they ... 
chemistry
1 _____is defined as onehalf of the distance between the nuclei of two adjacent metal atoms in the close packed crystal lattice ionic radius metallic radius covalent radius atomic radius 2 Except for rubidium and caesium, all common cations are smaller than all common anions ... 
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 painkilling substances. B. Read anthropological studies to discover plants... 
precalc
For the graph y=2, what is the: A) Domain B) Range C) X values of all zeroes D) Equations of all asymptotes E) 1 to 1 or not F) Continuous or not (if continuous tell where) G) Increasing, decreasing, both (if both tell where), or neither H) Bounded above, bounded below, ... 
calculus
Please help!! *f(x)= x(x+6)^1/2 find two x intercepts. Then show that f'(x)=0 at some point between the 2 x intercepts. *Use mean value theorem for f(x)= x(x^23x+1) for interval [1,4] I FOUND DERIAVITIVE WHICH IS 3X^26X+1.THEN? *find all critical numbers find all intervals ... 
Cal.
A bright light on the ground illuminates a wall 12 meters away. A man walks from the light straight toward the building at a speed of 2.2 m/s. The man is 2 meters tall. When the man is 4 meters from the building, how fast is the length of his shadow on the building decreasing... 
Philosophy
Use the diagramming method for identifying the argument structure of the following: "The Democrats tend to be to the left on social policy, and the new Congress is controlled by the Democrats, so we can expect a swing to the left. Of course, there are always exceptions." 
Philosophy
Use the diagramming method for identifying the argument structure of the following: "The Democrats tend to be to the left on social policy, and the new Congress is controlled by the Democrats, so we can expect a swing to the left. Of course, there are always exceptions." 
american government/ economics
A constituion: is a unitary form of government., sets out the principles and structure of a government., is a part of federal system of government ., is devolped only for democratic governments. i think its b.if not correct please, thank you 
10th grade
I really need help! I need to know how a Table with polyatomic listed looks like. And Rules for naming Covalent Compounds (mono, di, tri,..) and How to find Lewis structure using the periodic table 
Science
Which structure is less likely to suffer severe damage uring an earthquake: a highrise, steelframe hotel built on sediments, or a woodframe house built on bedrock? Explain. 
physics
A spherical balloon has a radius of 6.76 m and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 950 kg? Neglect the buoyant force on the cargo volume itself. 
AP Chemistry
The Lewis structure of PF3 shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. Is the answer 1, 3 Is it 1 because it asked for PAIRS so there are two electrons not bonded so one pair? 
Psychology need to know if i have correct answer
What is a comprehensive theory on the structure of personality that contributes to our knowledge about the origins of psychopathology? a. Psychology b. Psychotherapy c. Psychoanalytic model d. None of the above My answer is B 
Physics HELP
You have a converging (convex) lens and a diverging (concave) lens and the magnitude of the focal length of each lens is 38.5 cm. (a) Determine which lens you should use in order to produce an image of a light bulb on a screen several metres away. (b) Determine how far from ... 
math
What are the steps of the order of operations? Why is it important that you follow the steps rather than solve the problem from left to right? Write an expression for your classmates to simplify using at least three of the operations from the order of operations. Consider ... 
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
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 
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 ... 
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. ... 
Criminal Justice
How does the structure of the government relate to the criminal justice system? 
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... 
Calculus
Let x µ = x µ (u) be a parametric equation for the curve in pseudoRiemannian fourspace 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 ... 
English
Feminists argue that since the past millennium in the West have been dominated by menwhether 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. 
Physical Science
Picture a ball traveling at a constant speed around the inside of a circular structure. Is the ball accelerating? Explain your answer. Please help me with this, I know that the ball is accelerating but idk why. Thanks. 
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? 
Math
Binomial problems: Basic Anita's, a fastfood 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 ... 
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 ... 
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 ... 
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 100newton 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 ... 
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 ... 
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 ... 
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 ... 
physical
Which of the following statements is true concerning physical space in physical education 
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 ... 
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... 
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
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 ... 
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 ... 
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 ... 
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