Questions Asked on
October 20, 2008

chemistry
100 mL of is initially at room temperature (22)C. A chilled steel rod at 2 C is placed in the water. If the final temperature of the system is 21.2 C, what is the mass of the steel bar? Specific heat of water = 4.18J/g(C) Specific heat of steel =
asked by Lilit 
physics
Two infinitelylong lines of charge run parallel to the z axis. One has positive unifonn charge per unit length, IvO, and goes through the x y plane at x=O, y=s/2. The other has negative unifonn charge per unit length, A, and goes through x=O, y=s/2.
asked by Eric 
Please help Physics!!!
Two infinitelylong lines of charge run parallel to the z axis. One has positive unifonn charge per unit length, IvO, and goes through the x y plane at x=O, y=s/2. The other has negative unifonn charge per unit length, A, and goes through x=O, y=s/2.
asked by Jorge Wero 
math
Estimating a cost function, highlow method. Reisen Travel offers helicopter service from suburban towns to John F. Kennedy International Airport in New York City. Each of its 10 helicopters makes between 1,000 and 2,000 roundtrips per year. The records
asked by shelly 
7th grade math
the sum of two integers is zero. the difference of the same two integers is 16. What are the integers
asked by Lauren 
math
what is the answer to whaat kind of shoes does a frog wear? on page 165 on algebra with pizzazz
asked by ashlee 
physics
A car is driven 125km west and 65km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
asked by Julia 
physics
Missy Diwater, the former platform diver for the Ringling Brother's Circus had a kinetic energy of 15000 J just prior to hitting the bucket of what. If Missy's mass is 50 kg, then what is her speed?
asked by Megan 
Math
How do you solve for inequalities like this? 1< 4x < 1.59
asked by Blake 
English
Mom, I'm going to the stationery store. I'll buy some ballpoint pens, fountain pens, and mechanical pencils. I'll buy some notebooks and workbooks, too. I'll come back around 7:00 p.m. Don (Is this passage corect?) 1. I'll be back around 7:00 p.m. 2. I'll
asked by John 
Calculus
What is the integral of dx/sqrt(9+x^2) and integral of x^2/(13x)dx
asked by Anonymous 
Chemistry
Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. (a) n = 5 n = 4 _________nm (b) n = 5 n = 3 _____________ nm (c) n = 5 n = 2 __________ nm Calculate the maximum wavelength of light capable of
asked by Giznelbell 
chem
Zinc dissolves in acid according to the balanced equation. Zn(s)+ 2H(aq)> Zn(aq) + H2(g) a sample of zinc is placed in a ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109ml in the ice/water volume of the calorimeter, what is the enthalpy
asked by tomi 
chemistry
which is more stable: methyl cyclopropane or cyclobutane and why?
asked by Mischa 
Statistic
A restaurant that bills its house account monthly is concerned that the average monthly bill exceeds $200 per account. A random sample of twelve accounts is selected, resulting in the sample mean of $220 and a sample standard deviation of $12. The
asked by Marilyn 
Physics help again!
A ball is thrown horizontally off a 35 m tall building. It hits the ground 80 m from the bottom of the tower. a. what is the balls time in the air [i got 2.67] b. what is its initial velocity? [i got 0] c. What is the magnitude and direction of its
asked by Hayden 
PHYSICS 1
When a pitcher throws a curve ball, the ball is given a fairly rapid spin. A 0.15 kg baseball with a radius of 3.7 cm is thrown with a linear speed of 41 m/s and an angular speed of 37 rad/s. Assume that the ball is a uniform, solid sphere. (b) Calculate
asked by kelsey 
statistics
How does the sample size differ between qualitative and quantitative methods? Why?
asked by nicky 
Science
Why are water storage tanks usually built on the top of hills?
asked by Megan 
English
The two girls cleared the table and wash the dishes Is this sentence a compound subject or compound predicate
asked by Trevina 
math
sherry ran one lap in 83.86 seconds, while della's time for one lap was 837/8 seconds. which runner had the faster time?
asked by gill 
physics
a ball is thrown horizontally > from the roof of a building 45.0 meters tall and lands 24.0 meters from the base. what was the balls initial speed? OTHER QUESTION a shotputter throws the shot with an initial speed of 15.5 m/s @ 34 degrees. calculate the
asked by michael 
history
Why did the Tokugawa shogunate keep Japan isolated from 1603 until 1853?
asked by Anonymous 
accounting
Estimating a cost function, highlow method. Reisen Travel offers helicopter service from suburban towns to John F. Kennedy International Airport in New York City. Each of its 10 helicopters makes between 1,000 and 2,000 roundtrips per year. The records
asked by shelly 
government
What was the purpose of the Declaration and Resolves written by the First Continental Congress?
asked by Lulu 
8th grade
what is the national grange
asked by kristetn 
3rd grade, Social Studies.
Explain how you are a consumer, what goods and services do you use?
asked by Elaine 
algebra
If The Diameter Of A Circle Is 1.3 X 10^12 Meters, Then What Is Its Radius? Can you give me step by step. I think I want to divide this by 2 but I am not sure how to do that. Would it be this: 1.3/2*10^12= .65*10^12= 6.5*10^13
asked by mchawk 
English
Project. 1. Listen to the song carefully and sing the song all together. 2. Working in pairs, one person should take the part of a shopkeeper, and the other should be a customer. Then based on the lyric, each should sing his or her part. 3. For the blank
asked by John 
algebra
Find a trinomial A(x) that represents the area of a parallelogram whose base is 3x + 2 meters and whose height is 2x + 3 meters. Find A(3). This is what I got: (3x+2)(2x+3)= 6x^2+9x+4x+6= 6x^2+13x+6 Is this right?
asked by mchawk 
History
How many times has the U.S Constitution been altered over the past 200 years?
asked by Anne 
college algebra word problem
Wayne can do a job in 6 hours, while Susan can do the same job in 7 hours. How long would it take them to do the job if the worked together? Thank you!!
asked by jenny 
Biology
Which is true about the pairing of bases in the DNA molecule? a. purines always pair with pyrimidines b. a single ring base pairs with another single ring base c. a double ring base pairs with another double ring base d. purines pair with purines and
asked by KJG 
US history
what/who did the antifederalists support? (what is diff. from them and the federalist beliefs)
asked by Samantha 
physics/math
a brick has mass of 1.2 kg. a force of 5.4 N is needed to move the brick along the floor with a constant velocity. what is the coefficiant of friction?
asked by kiley 
math
Write each fraction as a percent. 1 1/5
asked by Gertrude Sanders 
Philosophy
appendix f
asked by Gertrude Sanders 
art
i have to do a box all about me, i just can't think on what to do? maybe a catwalk but like what?
asked by sophie 
Math
Mike took a 2"x4" picture to the photo store. He had it made into a 4"x8" print. Which geometric concept best describes the relationship between the two prints? Similarity, Linear, Symmetry or Congruency?
asked by Matthew 
chemestry
what are four components of the water molecule?
asked by Anonymous 
science
A list of things in home and grocery store that display metric units.
asked by cjh 
mth
The vote count for candidate A was 7,310. The votr count for candidate B was 14,190. Only two candidates were running. What percent of the voters voted for candidate A?
asked by Odessa 
college geology dealing with carbon 14
ok in my professors notes he calculates carbon 14 age in an example. The problem goes like this: Sample contains 110g carbon sample produces 70 disintegrations per minute. That is 0.7 disintegrations per minute. T=(1/lambda)ln(N0/Nt) Then he substitutes:
asked by student012 
chemistry
what are four components of the water molecule?
asked by sys 
English (Commas)
Do you use commas before and after a name. For example, If you learn your lines, Daniel, you can play the part of the grumpy old man. Is this correct?
asked by Nora 
math
What similarities and differences do you see between functions and linear equations, Are all linear equations functions? Is there an instance when a linear equation is not a function? Create an equation of a nonlinear function and provide two inputs to
asked by johnny 
percents
A fund drive announces that that it has raised $3,276 which is 70% of its goal. How much more must be raised? Can you show me how to do this?
asked by Odessa 
Saint Michael.
What was Saint Michael's life on earth like?
asked by Mike 
science
when did the first carbon data take place
asked by dina 
sociology
why women are more likely to make quick decisions
asked by Anonymous 
macroeconomics
what is the difference between thinking of a person as being employed versus thinking of person's labor as being employed?
asked by michele 
percents
A company gives raises once a year. Amir's present salary is $12,000. His manager would like to raise his salary to $84,000. What percentage raise would he be recieving.
asked by Odessa 
it 220
describe the benefits and risks of doing business on the internet from the perspective of both a business owner and consumer.
asked by sam 
math
which choices correctly represent numbers in base seven. (a)575 base seven (b) 656 base seven If one is incorrect write it so it is correct.
asked by pat 
Algebra
given the function k describ by k(x)=x+20 find each of the following K=(o)
asked by Roman 
world geography
"What is the most importent natural mineral fuel in the world?"
asked by bushra 
algebra
What is the solution of the system? Solve the system of equations using the substitution method. xy=1 5x+4y=23
asked by danielle 
US history
Do you know the flaws of the federalist views
asked by Samantha 
4th grade
Science; what is the habitat of a jaguar
asked by Sara 
Language Arts/ words from many cultures
1)A lizardlike reptile with a narrow head(Greek) 2)A large reptile with a sort,flat head(Spanish) 3)A theatrical dance(French, from Italian) 4)A red or yellow juicy fruit(NahuatI [Aztec) 5)A meal at which people serve themselves(french) P.S. This ( and
asked by Elenny 
physics gauss law
In a spherical region, the voltage is measured to be spherically symmetrical, with V = VCr) = wrg • The constants, wand g, are positive. a. Find the radial electric field. b. Use Gauss' Law to find the charge enclosed in a sphere of radius r. c. Find the
asked by Eric 
algebra
y=x2
asked by rey 
com 220
What type of introduction and what type of conclusion would you write for your research paper that was dealing with ex offenders ? How does the introduction draw readers into your argument, and how does the conclusion neatly tie up your paper?
asked by MIKE T 
science
An object travelling in a circle is accelerating ecause it is constantly changing ____________________.
asked by Jamie 
Forces on Structures (Science)
What force continually changes a satellite's direction? Why doesn't a satellite need fuel to keep moving? What would be the effect on satellites now in orbit if Earth were to stop rotating?
asked by Jamie ^_^ 
math
fraction mystery websites
asked by Mohammed 
math
a nother website except for search engins for fraction myestery
asked by Mohammed 
physics help!!
a plane moving horizontally at 120 m/s drops a package from an elevation of 240 m. How far did the package go before it hit the ground? Step by step directions please!
asked by Hayden 
high school
where can i find information on stories that were spread on the silk roads? my topic for an english paper is storytellers/writers and how the stories spread with the use of the silk roads.. i can't find any information at all.
asked by betty 
4th grade
what are the four basic climates and an example of each
asked by Asia 
Religion.... I think you will know this.....
Today my class got in trouble for talking so my teacher made us do 3 questions.... She said the answers are not in our book so I need help... Thanks so much!!! 1. What is Jesus's race? 2. Who was the ceasor (I don't know if "ceasor" is spelled correctly)
asked by Mike 
policies and procedures
Could someone please tell me if the purpose and policy are correct and if they have any suggestions for other procedures.. i need a minimum of 7. Purpose of Policy: The purpose is to set standards and guidelines for the Town of Springbank Hills Recreation
asked by PEGGY 
Statistic
Your company wants to conduct a salary survey for the position of Accounting Assistant II. The estimated salary range is $4,500, the margin of error should be $100 and the desired level of confidence is 95%. What is the optimal sample size for this salary
asked by Marilyn 
I posted this yesterday and im STILL CONFUSED!
okay so i was given a worksheet with 15 word problems. i couldn't solve 2 so if you could help me out it would be good.. If you ask Catwoman how many cats she has, she answers with the riddle, 'fivesixths of my cats plus seven.' how many cats does she
asked by Brennan 
high school physics
a ball is thrown hirizontally from the roof of a building 45.0 meters tall and lands 24.0 meters from the base. what was the ball's initial speed
asked by Michael 
★!!!PhYsIcS!!!★
A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline is 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?
asked by ☆Mortimer☆ 
geography
What and where is Waziristan? Why has it become a focal point of international attention? I'm learning about nonwestern geography and I kept skimming the chapters for the answer to this question but can't seem to find it. Please help me answer this
asked by jennifer 
cjs
Write a 700 to 1,050word paper in APA format comparing state and federal prison systems.
asked by kylie 
creating resumes
how to create a resume it is for a homework
asked by jessica 
Chemistry
Considering the effect of ionic strength, calculate the solubility of BaSO4 in 0.100 mol/L NaCl solution Ksp of BaSO4 = 1.1 X 10^10
asked by Patel 
physics
A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
asked by michelle 
english
I need an object to represent the beginning of one flew over the cuckoo's nest for a proj. Any ideas?
asked by charles 
geography
In South Asia, where does rain fall in August? In February? What are the seasonal changes caused by the movement of the ITCZ. I know that the Intertropical Convergence Zone is related to the Asian monsoon, but I'm confused on their relativity. Please help
asked by jennifer 
Applied Maths
Given that position vector a=4i+2j, position vector b=13i+5j are the vectors of A and B respectively. Given also that C lies on the line AB such that (Ab/AC)=3. Find vector AB, vector AC and the position vector of C. Given that vector BD=2i+4j, show that D
asked by Claire 
SIMAD
Define Interactive
asked by Mohmed 
science
Why are there more warm currents than cold currents?
asked by sara 
business
What are the differences among the research approaches (and thinking styles) that guide the predominant kinds of studies done in operations research, marketing, finance, and/or organizational behavior?
asked by jean 
PHYSICS 2
A 2.0 kg cylinder (radius = 0.08 m, length = 0.50 m) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.77 m high and 5.0 m long. (b) What is its rotational kinetic energy? ? J (c) What is its translational
asked by kelsey 
PHYSICS 3
A solid disk (mass = 1 kg, R=0.5 m) is rolling across a table with a translational speed of 9 m/s. a.) What must the angular speed of the disk be? rad/s d.) The disk then rolls up a hill of height 2 m, where the ground again levels out. Find the
asked by kelsey 
coulomb law and gauss law Physics
Two negative particles of charge=Q and mass=rn orbits a stationary, positive particle of charge=+2Q at a radius= R' They are always at diametrically opposite points on the orbit. a. Find the total inward Coulomb force on one negative particle. b. Write
asked by Pascual 
social studies
is francisco de Goya a renaissance artist??
asked by someone 
grammar
WHAT IS PREPOSITION?
asked by NAVEEN 
English
How do you summarize a paragraph?
asked by Taylor Ramez 
AP Human Geography
For an assignment, I have to use this data sheet to do a few things with the data it gives me. To get to it, go to PRB. org, click on 2008 World Population Data Sheet, and then click on 2008 World Population Data Sheet again I'm stuck in this: Construct a
asked by Maddie 
Microeconomics: Cost of Production
Please help me with this question! QUESTION: Heaven Sub, a subway shop, has the following marginal product curve points for its hourly product: (0.5, 13) (1.5, 17) (2.5, 15) (3.5, 11) (4.5, 9) i) When labour increases from 2 to 3 workers, total product
asked by Anonymous 
science
Why are there more warm currents than cold currents in oceans?
asked by laura 
physics
(A multiple part problem) Find the tension in the three wires that support a 10.2kg light fixture. Each wire forms 40° with the ceiling. Answer for top left wire. Find the tension in the three wires that support a 10.2kg light fixture. Each wire forms
asked by beth 
Statistics PLEASE help
I need help for a physics error analysis assignment and I have no background understanding whatsoever of statistics since I've never taken it and it all seems so foreign to me without any teaching. Can someone please help me with these questions? 1) One
asked by Sam 
Cultural Diversity
Hispanic American Diversity.
asked by no name 
Language arts
I am trying to assist my fourth grader in writing her first book report. It is based off of a mystery book. I have looked everywhere for a basic guildline for her so that I can give her an idea of what to do without doing it for her.Can anyone please guide
asked by Robyn 
6th grade Comm. Arts
I'm supposed to do an autobiography and have an attention getting introduction. We learned about all of the things you can do to get people's attention, but I still can't think of one.
asked by OlaZlnka 
starch
how can i carry out starch analysis by extraction and sedimentation method.
asked by adanma 
science
what is the stongest narcotic opoioid pain releiver out there? I will ask my doctor but if anyone knows, that would be great.
asked by Anonymous 
trig
Write each identity expression in terms of:1. cos theta= a. sin^2theta  sec^2theta1 2. tan theta= a. sec theta over sin theta minus sec theta over cosecant theta.
asked by sansan 
Math Help
given: f(x) = (x + 2)/x and g(x) = (x + 1)/(x + 2) what is the domain of f(x) times g(x)?
asked by Chrissy 
Microeconomics
Monopolistic Competition A monopolistically competitive market could be considered inefficient because: A. Marginal revenue exceeds average revenue B. Price exceeds marginal cost C. Efficient scale is realized in the long run, but not in the short run D.
asked by G 
economics
How do prices, outputs, and profits differ between oligopolies, and monopolistic competition? Are there similarities?
asked by shaneka 
Professional Ethics
What is an example of the kind of argument employers use to engender loyalty in their employees?
asked by Bobaroo 
Business
What kind of product might not have been sold for a long time because of the marketplace's lack of interest?
asked by Jackie 
R.E
Please tell me who are the 5 Prophets? I have a bible (christian i think..) crossword and it has a few questions on it at the bottom and one of them is the 5 Prophets. I can give a list of names, but please can you tell me out of the names who the 5
asked by Chanel 
Math
6q3v3/18q2v4 What is this answer?
asked by Candace 
science
I need accurate information about Albert Einstein. Any reccomended websites?
asked by logan 
BIOLOGY
WHEN A DNA MOLECULE IS COPIED TO MAKE ANOTHER DNA MOLECULE, WHICH STATEMENT BEST DESCRIBES THE RESULTING STRANDS? A. ONE DOUBLE STRANDED DNA MOLECULE IS THE ORIGINAL AND THE OTHER A NEW COPY B. BOTH RESULTING STRANDS ARE ENTIRELY MADE OF NEW DNA BASED ON
asked by JACK 
science
What is a length of an average persons blood vessel?
asked by APRIL 
R.E
On the crossword, it says, Which 5 are letters out of these words: Corinthians, Galatians, Philippians, Revelation, Romans and Timothy. Please help and theres another two questions, How many are in the Old Testmant and New Testmant. Please help! Thanks
asked by Chanel 
Science
Why is a cooling sysyem necessary in a nuclear reactor?
asked by Jessica 
chemistry
can u tell me a slogan for flourine?
asked by juan robles 
Math
Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy  100 and x^2 + 2y^2  100  2y
asked by Josh 
Greek Mythology
I know Poseiden was the god of the sea, but I'd like more detail about him. Can someone help me?
asked by logan 
liturature
After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of
asked by kain 
4th grade
What is the plural of maestro?
asked by Aaliyah 
english poetry
Wiiliam Blake wrote a poem called The Tyger/Tiger. First of all I want to know how it is spelt Tiger/Tyger? Secondly what does sinews mean? Lastly I what are the main themes? Thanks
asked by tallulah 
Math
Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy  100 and x^2 + 2y^2  100  2y
asked by Josh 
science
how does a hurricane form?
asked by neha 
Standardize testing
As a future teacher, I am curious to find out: How effective are standardize tests in assessing students academic performance or competence?
asked by Trisha 
Science
Heyylllooo x can anybody help me with my science homework ? You have to " Use detailed particle diagrams and the big idea of energy transfer to explain how the ear defenders work" Also, we have to draw a picture of the ear defenders and describe all the
asked by Paiigee (: 
history
what does "state of nature" mean? is it a person's rights?
asked by sy 
Statistics
I have 2 statistics problems that I've done and felt completely confident with them until I worked the problem a different way and got a different answer. I was wondering if you could tell me if I have the right answers or not. Thanks so much! A certain
asked by Lexi 
English
i'm stuck on an essay can you help: "How does Shakespeare make Act3 Scene4 so dramatic?"
asked by S 
Math
Give an example of Partial sums method.
asked by Moriah 
science
what is silica content of earths crust under the oceans?
asked by mack 
Science
Nitrogen in air is int he form of two nitrogen atoms fastened together, N2. Is Nitrogen an element or is it a compound?Explain. PLease help me! I need help really badly! please help !!! Fast!!
asked by Mary 
philosophy
is the world dominated by money?
asked by cc 
algebra
how to do unit rate $60 for 8 h there is more like 3/4lb and 861bagels/3d and 850cal/1.25h
asked by tay 
english 1
i have to do a paragraph and i have to write bout if i can change one thing wat wood it be and three reason ill take anything
asked by tay 
!social studies!
what were all the places that christapher columbus explored!? help me please!
asked by lauren 
global geography
the native people of australia are known as
asked by john 
PreCalc!
sketch a graph whose domain is the interval [0, infinity) but whose domain must be restricted to [0,4] so that the function can have an inverse. (The only one i can think of is a parabola but she said we cant use that one) Consider the 2 statements: I. if
asked by Marissa 
Reading
my son in 4th grade has to write a poem using stanza form and must use his mentor text. What is mentor text?
asked by Jannie 
10th grade math
solve each equation for y. do x and y vary directly? if so indentify the constant of variation. 1.4x=5y 2.2x+3y=6
asked by erik 
chemistry
the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution?
asked by Eric GReenblatt 
5th grade
Simplify. Tell which property you used. 27x0x3 & (38)(25)(4)
asked by OG 
math
what is the constant variation 3.2x+3y=6 4.3x1=7y1 write each lineat equation in slope intercepy form 1.x=2y7 solve the equation 1.x15=27
asked by erik 
Philosophy
Philosophy and Belief in God Matching Activity Match the following to the philosophies and descriptions below. Use each item only once. a. St. Anselm b. Gaunilo c. St. Thomas Aquinas d. Julian of Norwich e. Rene Descartes f. Gottfried Wilhelm, Baron von
asked by Gertrude Sanders 
math
I need help. I have information on the metric system. I have to list things at home and grocery store that display metric units. I don't know if I quite understand. I am trying to understand the reason behind my answer. The metric units and measurements
asked by shay 
Chemistry
the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution? i need an explanation on how to go about solving this...
asked by EGreenblatt 
literary
what is deductive resoning?
asked by tg 
chem
calculate the longest wavelength visible to the human eye
asked by anna 
Calc
What are the derivatives? Thanks a) y = log(base2)(49x) b) y = x^(8x)
asked by Michael 
History
What websites do i look at for shelter and agriculture of the early west africa?
asked by Lara 
Spanish
what does solito mean in english?
asked by Alii 
math
729,7098,729,2
asked by ra ny 
chemistry
Density of phosgene gas, COCl2(MM=99) ander a certain condition is 4.5g/L. What is the density if H2S gas(MM=34) under the same conditions?
asked by annemarie 
language arts
what is the compound predicate or compound subject in the sentence Mary collects the tickets and tears them in half.
asked by nicole 
US History
Was there anyone missing from the constitutional convention and if so who was missing from the constitutional convention? I didn't know some people were missing. Can some explain this?
asked by Samantha 
math
how do i solve systems of three equations with elimination??
asked by Lena 
social studies
Was Germany treated too harshly by the Treaty of Versailles?
asked by Mike