Questions Asked on
December 5, 2009

Lattice Energy
Arrange the following substances in order of decreasing magnitude of lattice energy. KCl NaF SrO BaO
asked by Kyle 
ap chemistry
some reactions that are considered to be spontaneous at low temperatures will not proceed at a measurable rate or form any measurable quantity of products for several hours, days, or years. a. explain why this is. b. will the addition of a catalyst alter
asked by Anonymous 
Mathematics
When two balanced dice are rolled, 36 equally likely outcomes are possible as shown below. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6) (3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6) (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4,
asked by Jamie 
math/geometry
complete the statements: To find the length of the hypotenuse of a 454590 triangle, multiply the length of one of the legs by:? Could the answer be .5??? to find the length of the shorter leg of a 306090 triangle, multiply the length of the longer leg
asked by Lauren 
math
When a coin is tossed four times, sixteen equally likely outcomes are possible as shown below: HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT Let X denote the total number of tails obtained in the four tosses. Find the
asked by Elizabeth 
statistics
focus groups of 11 ppl are randomly selected to discuss products of the yummy company .it is determined that the mean number (per group)Who recognize the yummy brand name is 7.8,and the deviation is 0.97.would it be unusual to select 11 people and find
asked by AILY 
physic
The amplitude of an oscillator decreases to 36.2% of its initial value in 20.5 s. What is the value of the time constant?
asked by elena 
Math
A state university wants to increase its retention rate of 4% for graduating students from the previous year. After implementing several new programs during the last two years, the university reevaluated its retention rate. Identify the Type I error in
asked by Jennifer 
Chemistry
When using a limited quantity of oxygen to react with propane (C3H8), this will result in producing carbon monoxide (CO) and carbon dioxide (CO2) gases. If 25% of 128 g of propane used in such process is converted into CO and the rest into CO2, calculate:
asked by help mallory 
Math Word Problem
There are 10 members on a board of directors. If they must elect a chairperson, a secretary, and a treasurer, how many different slates of candidates are possible?
asked by Ashley 
physic
please help me im stuck. A 400 g airtrack glider attached to a spring with spring constant 9.00 N/m is sitting at rest on a frictionless air track. A 600 g glider is pushed toward it from the far end of the track at a speed of 94.0 cm/s. It collides with
asked by jordan 
Math Word Problem
How many ways can 8 people line up for play tickets?
asked by Ashley 
Math  Please Help Me!
How many ways can an IRS auditor select 3 of 11 tax returns for an audit? There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible? License plates are made using 3 letters
asked by Ashley 
physics
In the photoelectric effect, does brightness or frequency determine the Kinetic energy of the ejected electrons? Which determines the number of the ejected electrons?
asked by coach 
statistics
an airline estimates that 97%of people booked on their flights actually show up.if the airline books 70 people on a flight for which the maximum number is 68,what is the probability that the number of people who show up will exceed the capacity of theplane
asked by lauren 
physics
1100g of ice at 50C is mixed with 100g of steam at 120C. Find out how much ice melts? The implied final temperature is 0C. Cice=0.5 Csteam=0.46 Hv=539 Hf =80 here is my work 1100(0.5)(0+50)+80m = 100(0.46)(1200)+540(100) i am not getting the right answer
asked by jeff 
calculus
a hotair balloon rising srtaight up from level field is tracked by a range finder 5000 feet from the liftoff point. At the moment the range finder's elevation angle is 45 degrees (pie/4 radians), the angle is increasing at the rate of 0.14 radians per
asked by marlyn 
Finance
Dr. J. wants to buy a Dell computer which will cost $2,788 four years from today. He would like to set aside an equal amount at the end of each year in order to accumulate the amount needed. He can earn 7% annual return. How much should he set aside? A.
asked by Travis 
Literature
What does this quotation reveal about Mr.Abe from "Abalone, Abalone, Abalone" by Toshio Mori? "Do not say anything. Nothing, mind you. When you have found the reason you must collect and preserve them [the shells], you do not have to say anything more."
asked by mysterychicken 
physic
An airtrack glider attached to a spring oscillates between the 3.00 cm mark and the 50.0 cm mark on the track. The glider completes 10.0 oscillations in 36.0 s. What is the period of the oscillations? What is the frequency of the oscillations? What is the
asked by peggy 
calculus
im not good in math. The Grand Canyon is 1600 meters deep at its deepest point; a rock is dropped from the rim above this point. Express the height of the rock as a function of the time t in seconds. How long will it tale the rock to hit the canyon floor?
asked by marlyn 
statistics
a test consists of true/false questions .to pass the test a student must answer at least 6questions correctly .if a student guesses on each question,what is the probability that the student will pass the test
asked by AILY 
Math
When a coin is tossed four times, sixteen equally likely outcomes are possible as shown below: HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT Let X denote the total number of tails obtained in the four tosses. Find the
asked by Jamie 
Microeconomics
The following table indicates the prices various buyers are willing to pay for a Miata sports car: Buyer A Maximum price $50,000 Buyer B Maximum price $40,000 Buyer C Maximum price $30,000 Buyer D Maximum price $20,000 Buyer E Maximum price $10,000 The
asked by Lorie 
calculus
a bomb is drooped from an airplane at an altitude of 14,400 feet. how long will it take to reach the ground? (Because of the motionof the plane, the fall will not be vertical, but the time will be the same as that for a vertical fall.) the plane is moving
asked by marlyn 
chemistry
The molar mass of magnesium carbonate, MgCO3, is 84 g/mole. How many moles are in 12.60 g of magnesium carbonate?
asked by brianna 
math help
At the first tricity meeting, there are 8 people from town A, 7 people from town B, and 5 people from town C. If a council consisting of 5 people is randomly selected, find the probability that 3 are from town A and 2 are from town B.
asked by Janet 
Physics
A bucket of mass 1.70 kg is whirled in a vertical circle of radius 1.50 m. At the lowest point of its motion the tension in the rope supporting the bucket is 20.0 N. 1) Find the speed of the bucket. 2) How fast must the bucket move at the top of the circle
asked by Anonymous 
Math Help!!
A local tennis proshop strings tennis rackets at the tension (pounds per square inch) requested by the customer. Recently a customer made a claim that the proshop consistently strings rackets at lower tensions, on average, than requested. To support this
asked by Mary 
Math
F 25 = 75,025 and F 26 = 121,393 where Fn is the nth term in the Fibonacci sequence. Find F27.
asked by Renee 
Biology(everyone answer i need alot of opinions)
Your roomate was given an antibiotic for strep throat. After 3 days she is feeling fine and asks you if she should stop taking the antibiotic and save the pills for next time she has a sore throat. Your response should be... A)yes, quit taking them because
asked by JEFF BOMB 
Math Still Don't Understand!
I do not understand how to work this problem out. I have a series of other questions that are similar, and it would really help me out if someone could help me understand how to work this problem. At the first tricity meeting, there are 8 people from town
asked by Janet 
Chemistry
Determine the molar mass of the unknown acid.? A 0.167g sample of an unknown acid requires 27.8 mL of 0.100 M NaOH to titrate to the equivalence point. Elemental analysis of the acid gives the following percentages by mass: 40.00% C; 6.71% H; 53.29% O.
asked by Kyle 
English/Lit
In A tale of Two Cities, when Mme Defarge learns Foulon is really alive, she: agoes to tell him she loves him. bleads a mob to him where she hangs him and then beheads him. cprovides a safe hiding place for him. dturns him into the authorities.
asked by Sha Sha 
Math Word Problem
In how many ways can 5 people be chosen and arranged in a straight line, if there are 11 people from whom to choose?
asked by Ashley 
Physics
A sports car of mass 1400 kg (including the driver) crosses the rounded top of a hill (radius = 93 m) at 27 m/s. 1) Determine the normal force exerted by the road on the car. 2) Determine the normal force exerted by the car on the 75 kg driver. 3)
asked by Anonymous 
MATHEMATICS
what is the exact value of 12sin(15degrees)? also 2(sin2x)=2sinx solve it for 0
asked by MRADILAHMED 
AP Chemistry (repost)
some reactions that are considered to be spontaneous at low temperatures will not proceed at a measurable rate or form any measurable quantity of products for several hours, days, or years. a. explain why this is. b. will the addition of a catalyst alter
asked by anonymous 
English
1. I was sad at the sight of the scene. 2. I was sad to see the scene. 3. I was sad when I saw the scene. (Do they have a similar meaning?) 4. Let's make it at ten. (What is the meaing of 'make it' in the sentence? Does #4 mean #5?) 5. Let's meet at ten.
asked by rfvv 
MathStatistics
Which of the following would be an appropriate alternative hypothesis? A) The population mean is equal to 3.4. B) The sample mean is greater than 3.4. C) The population mean is greater than 3.4. D) The sample mean is equal to 3.4. E) The sample mean is not
asked by Ashley 
maths
q1) 2cos2x is f(x) square root3 is g(x) solve f(x)g(x)=0 to get points of intersection in x is between 0 and 180degrees q2) a) write the equation cos2x + 8cosx+9=0 in terms of cosx and show that for cosx it has equal roots q2b) show that there are no
asked by MR MATHEW MATICS 
PhysicsPLEASE ANSWER, it's due soon!
A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water and 1.40×10^−2 kg of ice in thermal equilibrium at atmospheric pressure. If 0.900 kg of lead at a temperature of 417 degrees celsius is dropped into the can, what is the final
asked by AE 
physic
please help, i have done the part a and b but i don't know how to do part c. An airtrack glider attached to a spring oscillates between the 3.00 cm mark and the 50.0 cm mark on the track. The glider completes 10.0 oscillations in 36.0 s. What is the
asked by laura 
Math
There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible?
asked by Janet 
English
1. You can reach anyone all over the world. 2. You can get in touch with anyone all over the world. (Are both the same? What is the meaing of 'reaach' in Sentence 1?) 3. Probably he will come. 4. Possibly he will come. 5. Maybe he will come. (What is the
asked by rfvv 
English
1. He took the watch apart. 2. He disassembled the watch. 3. He broke up the watch. (Are the three the same?) 4. He put the watch together. 5. He assembled the watch. 6. He fabricated the watch. (Do the three have the same meaning?)
asked by rfvv 
Economics
Janice is producing a new product at marginal cost of £1, and by law she has to sell it for £2. She has to decide how much to produce before she learns the demand. All she knows is that demand will be 20 or 50, with equal probability. If she is just a
asked by Susan 
Chemistry  Figuring uncertainty
Our group had to create a procedure that efficiently separated mixtures of sand and salt. This we did, and all of the samples separated perfectly, except one, which was a gram off. On this one, my filter had broken as I was running water over the sample,
asked by Mary 
calculus
final question Consider the function F(x)=3x^45x+3 / X^4+1 Find: Domain Vertical,horizontal,or slant asymptotes xintercept(s) yitercept(s) symmetry(respect to x, yaxis or orgin) F’ (x) Critical numbers F” (x) Possible points of inflection
asked by marlyn 
Math word problem
On Anne's bicycle, the ratio of pedal turns to rearwheel turns in second gear is 4 to 7. If her rear wheel turns 994 times per mile, how many times does she turn the pedal in one mile? Express your answer as an integer or mixed number.
asked by Marcia 
English
I need help identifying verbs in a passive and active voice. 1. Masai, a people of East Africa, live in kraals, or small villages. (Verb=live, A) 2. The village is surrounded by a thick round fence. (verb=is surrounded, P) 3. The kraal contains about 10 to
asked by Emily 
algebra 116
I am supposed to graph it and tell what the slope is and what the yintercept is. I am totally confused.
asked by sheryl 
Science
Overpopulating rabbits in Australia were finally controlled by a disease spread trough the population. A higher death rate was recorded in regions with large population than small population. The disease can be considered.... A. A densitydependent factor.
asked by Kaled 
Financial managemetn
A firm's cost of financing is equal to its: WACC, required yield that investors seek for various kinds of securities, required rate of return that investors seek for various kinds of securities, or all of these answers. I am tempted to pick all of these,
asked by Charles 
college
I'm dealing with logarithmic need help with some questions please evaluate log12 782 to three decimals
asked by gigi 
Enlgish/Literature
What what point does Bernard Shaw satirizes in Act II/ I am not quite sure if it is when the men view the women, or the hypocraisy of both upper and lower classes, or the differences between men and women.
asked by Danesa 
CRt 205
CRT205 Week 5 Fallacy Matrix Categorizing Fallacies • Categorize each fallacy statement by copying fallacy type from the list below into the Fallacy Type text box adjacent the fallacy statement. • Provide an explanation as to why you think it is that
asked by angelee 
math 213
Determine all possible digits to fill in the blanks to make each of the following true. 9 482____ 624____35 4 63____
asked by alicia 
English
Give me a call tonight. Give me a ring tonight. Call me tonight. Ring me tonight. Call me up tonight. Ring me up tonight. Make a phone call tonight. Make a telephone call tonight. (Are they all the same?)
asked by rfvv 
Science
As the number of racoons in a foest increases, the availablity of nesting sites limits population growth. This describes which of the following? A. A densitydependent factor. B. A densityindependent factor. C. Intraspecific competitaion. D. Both A and C.
asked by Kaled 
college
With examles give differences between present value and future value as used in financial mathematics.
asked by Lugee 
Brooke High School
Two dice are rolled. What are the odds in favor of a sum less than 5?
asked by Jackie 
chemistry
Assuming that the volumes are additive , how much water should be added to75.0 mL of 6.00 M HCl to prepare 0.500 M HCl?
asked by Alizza 
microeconomics
32. Firm X is a typical firm in a market characterized by the model of monopolistic competition. Suppose that the market is initially in longrun equilibrium, and then there is an increase in demand for services. We can assume that in the long run, the
asked by habib 
Math Word Problems
How many ways can an IRS auditor select 3 of 11 tax returns for an audit? There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible? License plates are made using 3 letters
asked by Ashley 
geometry
The skipper of a boat knows that the water is too shallow to bring his boat inside a "danger semicircle" that goes from lighthouse to lighthouse. How can the angle between his sightings of the two lighthouses help him decide when he is entering the danger
asked by Lauren 
Physics
How would I go about calculating the acceleration of a mass being pulled up an inclined plane at an angle. Given  mass, and presumably angles
asked by Cait 
Geometry
Determine whether the triple of numbers can be the sides of a right triangle. Please explain. 6, 8, 10 Squareroot of 2, Squareroot of 3, Squareroot of 10
asked by Renee 
health care
Gathering and Evaluating Information
asked by mary 
math
write an equation of the line containing the given point and parallel to the given line (2,3)2x=7y+9
asked by Jeff 
Chemistry
How is Stiochmetry or anything that has to do with quantities in chemical reaction used in everyday like except for making cakes?
asked by Simmi 
Medical Codding and Billing
Will someone please help me with these two question. #1 You're an inpatient coder in a hospital. You've just coded a Medicare Part A record with a diagnosisrelated group (DRG )reinbursement of $12,000. You notice in the hospital's computer billing system
asked by Kay 
MTH 213Elementary Math
Write each of the following in the indicated base. (a) 1021 three to base ten. ________________________ (b) 534 ten to base twelve __________________________
asked by Ta 
college
What would be a good subject for an argument essay?
asked by Windy 
chemistry
Can NH4Cl be used instead of NH3 to ppt phosphorus from a fertilizer via gravimetric methods?
asked by Ghizelle 
physics
A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water and 1.40×10^−2 kg of ice in thermal equilibrium at atmospheric pressure. If 0.900 kg of lead at a temperature of 417 degrees celsius is dropped into the can, what is the final
asked by AE 
college
Jameal is ar the preoperational level of cognitive development. When he is asked why there is food on his plate, Jameal's most likely answer will be? A. "Mommy put it there." B. "Because I wanted it." C. "Because I am hungry." D."I asked for it."
asked by Don 
Lit
In Pygmalion, Higgins and Pickering share an interest in? a women blanguage and dialects. cpolitics dsocial status
asked by Sha Sha 
Lit
We deduce that Higgins is _____ through his treatment of Lize (Pygmalion) a: supportive b: a true gentleman c: rude and dismissive d: abusive
asked by Sharon 
Brooke High School
Two dice are rolled. What are the odds in favor of a sum less than 5?
asked by Jackie 
SOCIAL STUDIES
WHAT FRENCH FORT WAS LOCATED AT THE EXTREME SOUTHERN END OF LAKE CHAMPLAIN
asked by SHIRLEY 
international business
Deliverable Length: 35 pages Details: As a Venezuelan business owner (you may select the specific business of your choice), you are very interested in the fact that Venezuela has recently been accepted as an associate member of MERCOSUR (July, 2004). You
asked by leli 
college
Recognize the enormous importance of relics and the legends of saints in the designation of holy places throughout Europe
asked by tina 
Calculus
Hi. In an integration solution, the integral of (1/(sqrt (8u squared)) is written as arcsin(u/sqrt 8), but I don't see how they got it. When I did it I got (1/8)*(arcsin(u*sqrt8)). What I did was take sqrt8 common in the denominator to get it in the form
asked by O_o Rion 
mathtest statistic
If we have a sample of 12 drawn from a normal population, then we would use as our test statistic A) z0 with 11 degrees of freedom B) t0 with 12 degrees of freedom C) z0 with 12 degrees of freedom D) t0 with 11 degrees of freedom
asked by jason 
re: geometry
The boat is outside of the semicircle. So how can his angle help him decide when he is entering the dangerous semicircle? is there a certain theory that this pertains to? I still don't understand. Please, help again? thanks
asked by Lauren 
geometry
The skipper of a boat knows that the water is too shallow to bring his boat inside a "danger semicircle" that goes from lighthouse to lighthouse. How can the angle between his sightings of the two lighthouses help him decide when he is entering the danger
asked by Lauren 
geometry again
I have a pic of a right square pyramid with equilateral triangular faces with each side of the triangle measuring 6 in. i have a line "d" intersecting one of the triangles making 2 right angle triangles. Using the pythagoream theory how do I find the
asked by Lauren 
chemistry
STRUCTURE OF HNO4,(CH3)2SO,(CrO4)2,NH4NO3,FNO3
asked by CHIKIRSHU 
spanish
what does it mean "usted por que es tan bonita?"
asked by Julia 
History
Did Princess Diana of the UK die because of the paparazzi?
asked by rfvv 
Economics
3. Peter owns just his car and has £2,500 in cash. The car is worth £7,500. The probability that the car will be stolen (and never recovered) is 0.1. If his vNM utility function is two times the square root of his wealth, what is the maximum amount he
asked by Susan 
calculus
because of a slump in the economy, a company finds thatr its annual revenue have dropped from $724,000 in 2006 to $632,000 in 2008. if the revenue is following an exponential ppattern of decline, what is the expected revenue for 2009? (Let t=0 represent
asked by marlyn 
Spanish
Please check if the following conversation is correct: ¡Hola! ¿Como estas? Muy bien, ¿y tu? Fenomenal. ¿Qué hiciste el fin de semana pasado? Yo compré ropa nueva en la tienda el fin de semana pasado. ¿Qué compraste? Yo compré una nueva chaqueta y
asked by . 
economic history
Could someone give me a short summary/bullet of the economic significance of the great voyages of discovery in particular for venice/portugal? Thanks xox
asked by lara 
economic history
Could someone give me a short summary/bullet of the economic significance of the great voyages of discovery in particular for venice/portugal? Thanks xox
asked by lara 
business
a 5 to 7slide PowerPoint® presentation according to the following: o A brief description of the terrestrial resource issue o A management and sustainment plan for the terrestrial resource o Challenges or implications of your management and sustainment
asked by Anonymous 
English IV
What did Liza want from Higgins in the Pygmalion? If Doolittle gets money from Higgins, then what does he say he will do? Is it to give it to Liza? Don't know
asked by Krystal 
englisg IV
Why does mrs. higgins believe that higgins' experiment will cause problems for liza? is it because higgins will fall in love with her
asked by Danesa 
math
100x(second power)  64y(second power)+
asked by melanie 
social
The “conventional deviant” is depicted in Becker’s typology of deviant behavior as one who is perceived as engaging in ordinary deviance. I think it True but not sure
asked by chad 
AP world history
how can i write a conclusion?
asked by juju 
Math
Solve for x: 2sin^2x = 3sinx + 2 on pi < x < 4pi (the "
asked by Momo 
to reiny
so would my equation be: d^2 + 3^2=6^2 d^2 + 9=36 d^2=27 d=square root of 27? d=5.197 or 5.2?
asked by Lauren 
algebra
what is n/15=120
asked by Erica 
marketing
Consider competitive markets, monopolies, and oligopolies. What role does each of these play in an economy?
asked by sam 
medicine
What are 10 things that Electroneurodiagnostic Technicians must know?
asked by Lenora 
psychology
factors that enhance or impede information flow in each step of the process
asked by heidi 
healthcare
Myelin visited my office yesterday complaining of numbness in his right leg and face. He has also been experiencing muscle weakness and mild depression. I noticed a delay in his visual response in both eyes
asked by nancey 
algebra 116
How do I work this problem: y = 2/3x  12
asked by sheryl 
medical staff service management
Question 1. What are the shortfalls and limitations of the traditional medical staff organization model? Explain your reasons. Question 2. What improvements would you recommend to make it more responsive, accountable and reduce the time practitioners have
asked by pam 
English
Let me know the verbs which don't have passive voice forms. For example: He has a pen.(o) A pen is had by him. (X) Would you let me know the website about that? 1. He is having dinner. 2. Dinner is being had by him. (Is #2 correct as a passive voice of
asked by rfvv 
Economics/Math
1. Assume that q and z are two random variables that are perfectly positively correlated. q takes the value of 20 with probability 0.5 and the value of zero with probability 0.5, while z takes the value of 10 with probability 0.5 and the value of zero with
asked by Susan 
English
What are some historical instances of when individuals or groups went hungry, either because they were forced to or because they wanted to make a statement?
asked by Anonymous 
Science
A population whose growth is influenced by births, deaths, immigration, and emmigration is described as which of the following? A. Open B. Closed C. Geometric D. Exponential
asked by Kaled 
accounting
From owner:Adjust cheque #171 to Fundy Gift House. The cheque amount was 600.00 in partial payment of invoice #FG361.
asked by kim 
DESICION MAKING
At least 7 slides and no more than 15 slides with Details: This is a Capstone Project where you will utilize all the information we’ve learned thus far in the session. For this assignment you will be preparing a presentation analyzing a single example of
asked by JOHN 
biology
how do you draw tryptophan and i need to know what goes around the pentagon part etc. thanks
asked by Rebekah 
International monetary relations
1. The U.S dollar has lost value to the Brazilian real recently. a.What recent events (political, economic, etc.) may have contributed to this? In what ways? b.If general mills build a factory in brazil what impact would the weakening of the dollar have on
asked by jessica 
Math Please Help
Decide which of the variables described is likely to have a normal or nearnormal distribution. a. The salaries of adult males in a large city b. The weights of adult males in a large city
asked by Jamie 
Advanced Bilology
What are the methods for detecting cystic fibrosis?
asked by Jennifer 
social
TrueFalse 1.According to Akers’ learning theory, the social environment is the most important source of reinforcement.
asked by Chad 
business
As an IHRM why would recruitment, selection and staffing be problematic.
asked by tre 
spanish
me encantan me traen tana felicidad amo a mi papa
asked by Anonymous 
Social studies
True/fals 1. Borrowing from economics, rational choice theorists examine opportunities, costs and benefits when studying offenders’ decisionmaking processes. 2. In emphasizing both social disorganization and ecology, routine activities theory can be
asked by Loe 
Marketing
How does the promotional mix change over the product life cycle?
asked by Bryan