Questions Asked on
January 21, 2008

physics
Suppose you had two small boxes, each containing 1.0 g of protons. (a) If one were placed on the moon by an astronaut and the other were left on the earth, and if they were connected by a very light (and very long!) string, what would be the tension in the
asked by Jen 
physics
Two equal point charges of +3.00 * 10^ 6 C are placed 0.200 m apart. What are the magnitude and direction of the force each charge exerts on the other?
asked by Jen 
Chemistry 232
Why was the methylene chloride layer washed with sodium bicarbonate in the procedure for preparing camphor? is it to remove acid which was added in the starting process.
asked by Sonam 
poem by E.E. Cummings
Can someone help me figure out what the meaning of this poem is? It's called "in Just" and it confuses me. in Just spring when the world is mud luscious the little lame balloonman whistles far and wee and eddieandbill come running from marbles and
asked by Emily 
physics
A negative charge of 0.550 uC exerts an upward 0.200 N force on an unknown charge 0.300 m directly below it. (a) what is the unknown charge (magnitude and sign)? (b) What are the magnitude and direction of the force that the unknown charge exerts on the
asked by Jen 
physics
Neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along their length. These impulses propagate when charge suddenly rushes into and then out of a part of the neutron called an axon. Measurements
asked by Jen 
College Physics
A positively charged rubber rod is moved close to a neutral copper ball that is resting on a nonconducting sheet of plastic. a) Sketch the distribution of the charges on the ball. b) With the rod still close to the ball, a metal wire is briefly connected
asked by Jen 
physics
Two point charges are placed on the x axis as follows: Charge q1= +4.00 nC is located at x= 0.200 m, and charge q2= +5.00nC is at x= 0.300 m. What are the magnitude and direction of the net force exerted by these two charges on a negative point charge q3=
asked by Jen 
College Physics
Two iron spheres contain excess charge, one positive and the other negative. a) Show how the charges are arranged on these spheres if they are very far from each other. b) if the spheres are now brought close to each other, but do not touch, sketch how the
asked by Jen 
mathneed help
A right rectangular tank with a 12 unit by 8 unit base is filled with water to a depth of 5 units. The water rises 1.5 units when a solid cube is completely submerged in the tank. In simplest radical form, the edge of the cube is k*cube root of w units.
asked by jujube 
Algebra 2Linear Programming
A chauffer must decide between driving his client in the Rolls Royce or the Mercedes Benz. The Rolls Royce costs $1.75 per mile to operate and the Mercedes Benz costs $2.00 per mile to operate. The chauffer can charge $4.00 permile for the Rolls and $6.00
asked by Chauncey 
Physics 204
I have a few questions. 1.The coefficient of sliding friction between steel skate blades and ice is .05. How much force must be applied to a 150lb. skater to maintain a constant velocity? 2. If it takes a force of 6 pounds to cause a 24 pound box to slide
asked by Charles 
College Physics
During an electrical storm, clouds can build up very large amounts of charge, and this charge can induce charges on the earth's surface. Sketch the distribution of charges at the earth's surface in the vicinity of a cloud if the cloud is positively charged
asked by Jen 
Physics
an anchor shoots an arrow into a piece of wood. the arrow is traveling at 120 km/h when it strikes the wood. the arrow penetrates 3.8 cm into the wood before stopping. what is the average acceleration (in m/s^2) into the wood?
asked by Fel 
pre calc
The publisher of a magazine that has a circulation of 80,000 and sells for 1.6 a copy decides to raise the price due to distribution costs. By surveying the readers the publisher finds that the magazine will lose 10,000 readers for every .4 increase in
asked by Kate 
Economics
GNP accounts avoid double counting by including only the value of final goods services sold on the market. Should the measure of imports used in the GNP accounts therefore be defined to include only imports of final goods & services from abroad? What about
asked by Ang 
AP Chem
Use the following information to identify element A and compound B, then answer questions a and b. I'm so stuck on this problem and don't know where to begin. I need to have this problem done by Wednesday. PLEASE HELP!!! An empty glass container has a mass
asked by John 
calculus
how to take the integral of cos(square root of x) dx. need to use substitution and integration by parts but I don't know what to substitute
asked by sarah 
science
I have to list 3 examples of each galaxy (Spiral, Elliptical and Irregular). I have facts about each one but I can't find where they are located.
asked by Callie 
books
What is the main conflict in the novel The Witch of Blackbird Pond? What is the resolution?
asked by Breanna 
US History
Do you think that the Roosevelt Corollary to the Monroe Doctrine fundamentally altered the nature of the doctrine and the intentions of its origianl authors (Monroe and JQ Adams)? If so explain how. If not, explain how the doctrine and the corollary are
asked by Amanda 
physics
(a) What is the total negative charge, in coulombs, of all the electrons in a small 1.00 g sphere of carbon? One mole of C is 12.0 g, and each atom contains 6 protons and 6 electrons. (b) Suppose you could take out all the electrons and hold them in one
asked by Jen 
studying
I have to study for a HUGE science test tommorrow, but I don't know how to study! I've reviewed my notes, reread the chapter in my book, and learned all the vocab, but I'm still a little shaky. I'm not sure how else to study, though, so if you have any
asked by pinkpolkadots7 
Calculus
Find the constant term in the expansion of [x + (3/x squared)]^9 Find the coefficient of (x)^4(y)^9 in the expansion of (x + (2)(y)^3)^7
asked by Daisy 
Data managment math
1:There are 7 seats in the family new van. if 4 of the 7 family members can drive,how many possible seating arrengements are there for a family trip in the van? 2:How many even five digit numbers can be formed using only the numbers through 1 and 7?
asked by Samir 
physics
(a) What is the total negative charge, in coulombs, of all the electrons in a small 1.00 g sphere of carbon? One mole of C is 12.0 g, and each atom contains 6 protons and 6 electrons. (b) Suppose you could take out all the electrons and hold them in one
asked by j 
College Physics
In ordinary laboratory circuits, charges uC (microcoulomb) and nC (nanocoulomb) range are common. How many excess electrons must you add to an object to give it a charge of (a) 2.50 uC (b) 2.50 nC.
asked by Jen 
social studies/writing
is this a good paragraph on the differences and similarities between the U.S. and Thailand??? When people hear the about the countries, United States and Thailand, the fact that they are in two different sides of the world is the first thing that comes to
asked by Gabby 
algebra
the basketball team is trying to raise $475 for new uniforms if they sell candy boxes for $2.75 a box how many boxes will they have to sell to raise $475?
asked by lakeeta 
US History
Why is it not true that the US remained isolated from world events in the late nineteenth century? Describe some specific instances of American involvement beyond its own shores between 1865 and 1900. I have two examples but i need a third. Immigration and
asked by Amanda 
Biology
Following my previous question: jiskha/display.cgi?id=1200944514 use the Galapagos Islands as an example try to produce an action plan of at least 5 points that could reduce the risk of manmade extinctions occurring in vulnerable habitats. Give a brief
asked by Anonymous 
ScienceEcology
Why are amphibians good indicators of a health of an ecosystem?
asked by Hayley 
calculus
Find the sum of the series: 10 + 14 + 18 + 22 +...+138 and 612+2448+96...+1536
asked by Daisy 
Algebra
I just need help with the number game part. I can't think of any kinds of games to come up with? Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did
asked by Noah 
Sentence structure
1)Voltaire presents his ideas of injustice through comedy by exaggerating the aristocrats’ life style. In this sentence do I include an "s" after style? Also, which is correct in this sentence, "life style" or "lifestyle". 2)Voltaire’s representation
asked by Bizzy 
Algebra II
I think I need to go backward for my answers. starting with c. As I am no good at math I have to guess I am wrong. Can I get some guidence on how to set up the problem? To estimate animal populations, biologists count the total number of animals in a small
asked by Marysvoice 
algebra
sally's print shop will print any image on a frisbee for a cost of $1.50 per frisbee and a onetime charge of $7. write an algebraic equation using c for cost and f for frisbees.
asked by lakeeta 
Geometry
Recal a graph, chart, or table that you used in previous courses to help present data more effectively. How did you create the graph, chart, or table? In what ways did creating the graph, chart, or table help convey your information?
asked by greatdanelola 
english
need help to write a descriptive paragraph on food
asked by sydney 
algebra
find slope of any parallel line through points (9,6) and (1,2)
asked by beth 
chemistry
Convert 385 mmHg into kPa and atms. What does this mean?
asked by Anonymous 
ScienceEcology
Why are food chains typically limited to 4 or 5 trophic levels?
asked by Hayley 
AP Chemistry
I need alot of help on this problem, it is due WEDNESDAY and I have no clue how to do it Use the following information to identify element A and come pound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of
asked by Eric 
astronomy
Why is the sky blue?
asked by Belinda 
Organic Chemistry
This compound is characterized by ionic bonding between a group 1 metal cation and a tetrahedral anion. Write an appropriate Lewis structure for the anion and a specify a formal charge if there is one. NaBF4 I looked up the answer and I have a few
asked by Aletha 
English
What is the setting in the book the bad begging by lemony snicket
asked by Alyssa 
compare and contrast
i need help comparing and contrasting Maya Angelou and Charles Dickens' writing styles. more specifically from caged bird and great expectations...thanks
asked by anonymous 
MATH OMG HELP
The base and height of an original rectangle are each increased by 15%. The area of the new rectangle is k/w times the area of the original rectangle. If k and w are relatively prime positive integers, find the value of k + w.
asked by Jujube 
Books
What is the climax in the novel The Witch of Blackbird Pond?
asked by Breanna 
Calculus help!
(1) A toy truck travels at a rate of 0.5t ft/sec after t seconds of travel (so after 6 seconds the truck is traveling 3 ft/sec). a) Graph the speed of the truck vs. time for 0
asked by anonymous 
african american hist.
how did europeans profited at the expense of African Americans during the era of the Atlantic slave trade?
asked by mack 
Chemistry II

u.s hist. 2
what was the reconstruction policies regarding social, economic and political equality of african Americans up through and including the Plessy v. Ferguson case?
asked by mack 
English
what should you study for a english benchmark?
asked by Trissy 
general chemistry
one international mile is defined as exactly 607601155 ft, and a speed of 1 knot is defined as one international nautical mile per hour.What is the speed in meters per second of a boat traveling at a speed of 14.3 knot?
asked by marinka 
Chemistry
Can someone check to see if my answers look ok. For the following crystals, explain how their melting points are related to the bonding forces and the crystal structure: a)Copper,Cu Copper has metallic bonds between atoms. It can occur as isometric cubic
asked by Nancy 
Algebra 1
How to solve this elimination 3x + y = 20 x + y = 12
asked by Brayan 
math PLEASE HELP
1. A rhombus has a perimeter of 96, and the length of one of its diagonals is 32. The area of the circle inscribed in the rhombus can be expressed as k*pi/w where k and w are relatively prime positive integers. Find the value of k + w.
asked by Jujube 
African Amer. Hist.
I need websites on these: What was the slave ship capacity? Who was Ghana's King? Lexington and Concord What was Andrew Jackson's feelings toward black troops? Federalist and slave issues
asked by Mack 
Math Algebra
To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one variable
asked by Micah 
Geography
What government imposed barriers stop or hinder the export of automobiles?
asked by Dean 
math
A three person committee is formed with the following people to be considered: A, B, C, D, E. How many different threeperson committees can be formed from these five? what is the best way to set up a diagram to answer this question? can you show how to do
asked by chris 
african american hist.
what year was back men able to vote?
asked by mack 
african american hist.
What was the role of the free black community in boston? What were the contributions of Peter Salem, Salem Poor, Prince Hall, Phillis Wheatley and Benjamin Banneker?
asked by mack 
Geometry
What was the percent increase in the population in South America from 1900 to 2000? 1900  38,000,000 1950  111,000,000 2000  515,000,000
asked by greatdanelola 
Math
24 paragraphs plus two graphs Details: Many different kinds of data can be modeled using polynomial functions. An example of a polynomial function would be gas mileage for an automobile. If we compare gas mileage at two different speeds, V1 and V2, the
asked by Nathan 
english
what is the conflict of The Bad Beginning by Lemony Snickett ? and where does the setting take place?
asked by Renee 
alegebra
which two equations represent perpendicular lines: y= 2x9 y= 1/2x+9 y= 1/2x+9 y= 1/29
asked by jason 
african american hist.
What was a trade system?
asked by mack 
writing
How do you write a good conclusion to a biography about a classmate?
asked by sarina 
chemistry
How do atoms bond to form molecules?
asked by janet 
ScienceEcology
State at least two advantages and two disadvantages of a pesticide that is low in toxicity and breaks down quickly. Thanks!
asked by Hayley 
cultural diversity
were Irish Immigrants to United States faced with environmental justice issues, redlinig, affirmative action, dual labor market, institutional or reverse discrimination, and double jeopardy?
asked by Barbara 
political science
The Constitution specifies a 3/4 majority for which process?
asked by Lindsey 
math
express in terms of i, the roots of x/8 + 8/9x=0
asked by maureen 
Calculus
write in the form of logA: log2 + log12 3log5 + 2log3 1/4log81 log36  log12
asked by Daisy 
Calculus
If A=125e^kt and A=200 when t=3, find the value of k.
asked by Daisy 
parent
Outline the key considerations a parent should take into account when evaluating a childcare option.
asked by Suzanne 
algebra
your school district is considering a plan to rent rather than buy a new server for its computer network. a server rents for $2.50 per day with a $25 fee for insurance, let d represent the number of days and c the cost write an algebraic equation
asked by lakeeta 
math
Solve this : (8x^3 )  (168x^2) + ( 864x) = 1120 please >>>>>>>>>> I need it >>> please
asked by Robert 
advanced function
Find an equation with the given form in each case below. y=sinè through(ð/2, 0)
asked by mel 
Geography
Vehicles equipped with high horsepower motor use more fuel than most motors. What does the federal government impose on these vehicles?
asked by Dean 
Geometry
A)What was the mean population of the six continents or land masses that were habitable in 2000? B) What was the mean population in 1950? C) What was the percent incease in the mean population from 1950 to 2000?
asked by greatdanelola 
calculus  PLEASE HELP!
1. A car travels 20 mi/hr for 2 hours and then 30 mi/hr for 3 hours. a) For 0
asked by anonymous 
lit
For my existentialism project(I have to create a work of art that reflects the absurdity of our meaningless universe, or our reaction to it (pick from the six existentialism themes), I drew the three people fighting, trying to go through a doorway (there
asked by tim 
Algebra
To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one
asked by Micah 
Algebra
To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one variable
asked by Micah 
Calculus
Simplify: a. (5x^2)^3 x (x/4)^2 x (8/25x^5) b. fifth root of a^3 x square root of a^5
asked by Daisy 
Legal and Ethicsl Issues in HHS
I am suppose to list examples of tangible and intangible forms of an organizational culture. I have got examples for tangible such as rituals, shared values, heroes, and heroines, ceremonies, stories, cultural network, physical impression, language,
asked by Jess 
Biology/English
Tourism, overpopulation and overfishing have become the blight of the Galapagos Islands that inspired Darwin. Now the UN is sounding the alarm. The threat is growing to the cradle of evolution. Crucial talks take place today over the increasingly
asked by Don't matter 
appliances
the difference between a nail and a screw
asked by Yosimitee 
English
What is a root? and please another my other question...thank you
asked by Trissy 
african american hist.
what were the origins of the indentured system? how did it evolve into plantation slavery?
asked by mack 
Philosophy
Write an informative 7001050 word letter in the persona of one Eastern philosopher to one of his pupils. In the letter, describe your chosen philosopher's viewpoints concerning one of his philosophies. f needed, cite secondary sources according to APA
asked by greatdanelola 
Algebra
Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test. a. Write an expression that gives the total cost to test x
asked by Micah 
physics
A rod is nailed (flexibly) to a wall at one end. The other end is held up from letting the rod swing by a thread connected to the ceiling. The rod has mass M and length l. The moment of inertia is (Ml^2)/3. Determine the magnitude and direction of the
asked by Hannah 
science
Hi. Which of the following are legumes? apeas, beans, alfalfa bcarrots, potatoes, beets cpeas, spinach, rhubarb dcelery, carrots, onions Thanks!
asked by Ginger 
literture
kestrel for a knave
asked by natasha 
u.s hist. 2
what were all the circumstances and events leading up to the development og the Open Door Policy?
asked by mack 
u.s hist. 2
what were the political and social changes made by the Progressives?
asked by mack 
science
which part of a atom is involved in forming chemical bonds?
asked by jeannie 
Philosophy
Write a 350700 word response, in which you choose two or three Eastern philosophies and describe how they compare. Take sides, determine which philosophies are most persuasive, and explain why.
asked by greatdanelola 
cultural diversity
did Irish immigrants face glass ceiling, glass walls or glass escalator in the United States?
asked by Barbara 
Physics 204
If there is a 23lb. block on a plank and the static friction is .6 and the sliding friction is .35. What angle must the plank be raised to just allow the box to slide?
asked by Charles 
algebra
write an equation for (5) and yintercept (0,5)
asked by jason 
Pigskin
Dude where can I get a Pigskin Worksheet for the Philadelphia and Boston thing?
asked by shakira 
English
I had to place these statements in the Fallacy Types I thought they belonged in. Did I do this right or am I completely wrong here? Fallacies are confusing.Thanks Everyone Ad hominem/genetic 7. I don’t care if she is the top psychiatrist in the state!
asked by Misty 
advanced functions
Find an equation with the given form in each case below. y=sin through(Ï/2, 0)
asked by Mel 
Work Experience
To do work experience, do you have to be a certain age? Any sites anyone could recommend?
asked by Anonymous