Questions Asked on
November 14, 2009

Chemistry
In which orbital does an electron in a phosphorus atom experience the greatest effective nuclear charge? a. 1s b. 2s c. 2p d. 3s e. 3p I originally thought 3p, since those are the outer electrons, but that was marked wrong. Why is it not 3p? Is the right
asked by C. 
AP Chemistry
You are given a small bar of an unknown metal X. You find the density of the metal to be 10.5g/cm3. An xray diffraction experiment measures the edge of the facecentered cubic unit cell as 4.09 A. (1A=10^10m) Identify X.
asked by Angie 
english 30
"foremother" by lillian bouzane what is the significance of the poems title and how does it help develope the theme
asked by carol 
chemistry.
What is the concentration (M) of a NaCL solution prepared by dissolving 9,3g of Nacl in sufficient water give 350ml of solution?.Any idea???
asked by Denmark 
AP Chemistry
Iron has a density of 7.86 g/cm3 and crystallines in a bodycentered cubic lattice. Show that only 68% of a bodycentered lattice is actually occupied by atoms, and determine the atomic radius of iron.
asked by Angie 
Chemistry
A 100.0 mL of 0.200 M methylamine, CH3NH2, is titrated with 0.100 M HCl. Calculate the pH after 70.0 mL of 0.100 M HCl has been added.
asked by Donna 
Math
How do you write 2.78 in expanded form
asked by Nicole 
4th grade
IN A TUG OF WAR, 5 DONKEYS ARE EXACTLY EQUAL TO 2 ELEPHANTS. IN ANOTHER TUG OF WAR, 3 ELEPHANTS ARE EQUAL TO 1 CAR. WHICH TEAM SHOULD WIN IF A CAR AND 3 DONKEYS ARE MATCHED AGAINST 4 ELEPHANTS?
asked by VIVI 
chemistry
Delta H is given and is6186.0 Calculate the difference, deltaHdeltaE=delta(PV) for the combustion reaction of 1 mole of methyl octane. (Assume standard state conditions and 298 K for all reactants and products.)
asked by BREE 
honors english
In the Crucible what epithet did Giles Corey avoid by remaining silent?
asked by jim 
honors english
In the Crucible what epithet did Proctor fear was fraudulent?
asked by jim 
Chemistry
Need help with this lab: (sorry so long) Hypothesis: The amount of product will be regulated by the limiting reactant. Procedure: First, I took two test tubes from the Glassware shelf. I added 6 mL of the copper sulfate solution to one, and 6 mL of the
asked by anonymous 
Chemistry
A tin atom has 50 electrons. Electrons in which sublevel of this atom would experience the lowest effective nuclear charge? a. 1s b. 3p c. 3d d. 4s 3. 5p
asked by C. 
English Lit
Analysis the double voice in Anne Bradstreet's poem....."The Prologe" "The Author to Her Book"
asked by Kelly 
Physics
An amusement park ride consists of a rotating circular platform 8.26 m in diameter from which 10 kg seats are suspended at the end of 1.14 m massless chains. When the system rotates, the chains make an angle of 16.2 degrees with the vertical. The
asked by bubba 
Math
Solve for x: sec(2x)csc(2x) = 2csc(x) for 0 < x < 2pi [the first "
asked by Anonymous 
4th grade
On the average your heart beats about 72 times per minute. At this rate, about how many times will it beat: a) in a 30day month; b) in a year; c)in your lifetime, if you live to 72 years of age?
asked by VIVI 
english grade 12
what are 2 examples of emjambment in the poem "vancouvercourtneycalgary" by george bowering
asked by carol 
ChemistryPolarity
I am having trouble understanding polarity. I think I understand what it is  when a chemical bond occurs and there is or is not a resulting charge on the molecule. And the book says that the amount of polarity is the difference in the electronegativity
asked by Mary 
Math
I am having trouble understand what is the expected value of rolling a die? I know that I would start by finding the probability of 1,2,3,4,5,6. But I do not know what to do after that?
asked by Anonymous 
english grade 12
in the poem grammar poem by Rita Wong list three different metaphors used to describe english and english grammar. do you agree with her assesment and why
asked by sherry 
Math  Algebra word problem
Ace manufacturing has determined that the cost of labor for producing x transmissions is L(x) = 0.3x2 + 400x + 550 dollars, While the cost of materials is M(x) = 0.1x2 + 50x + 800 dollars. Write a polynomial T(x) that represents the total cost of materials
asked by Ashley 
Geography
How do you think the existence of nearly 3000 ethnic groups and 800 languages affect life in countries south of the Sahara? Subsaharan Africa displays more diversity than anywhere in the world. This is more apparent in the number of languages spoken. The
asked by mysterychicken 
Chemistry
Which test tube has largest amount precipitate? Why? (use terms such as limiting reactant and excess reactant to explain) Do I just name the test tube that weighs the most and I need help with the explanation. I did not list the actual chemicals just need
asked by anonymous 
Literature
'Pick a special day of the year. Write down atleast two things that you might see, hear, taste, smell, or touch on that day. Try to find images that reveal what you feel at this moment, on this day. Now write a haiku about your special day.' I reallyyy
asked by mysterychicken 
english 301
why does the poet use italics in grammar poem by rita wong
asked by tina 
MathAnswer included
Five numbers are to be picked, without repetition, from 44 numbers to determine the winner of the Fortune Five game in the state lottery. If the order of the numbers is insignificant, how many different ways can a winning quintuple be selected? What is the
asked by Anonymous 
physic
Hi!Need help please. Question:A car initially traveling at 24.0 m/s undergoes a constant negative acceleration of magnitude 2.10 m/s2 after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the
asked by Chan 
chemistry
how many grams of Sb2S3 will contain 4.80 moles of S
asked by Trace 
Chemistry
Under the correct conditions, the element molybdenum emits Xrays with a characteristic wavelength of 0.711A (7.11*10^11m). These Xrays are used in diffraction experiments to determine molecular structures. How fast does an electron need to be moving to
asked by C. 
Physics
A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the block to the water if the water is fresh? and If it's seawater?
asked by Ana 
Chemistry
How do we know what salt has the lowest molar solubility?
asked by John 
9th grade
what do you call a female bug that floats?
asked by Anonymous 
math
How do you read .0125
asked by Bob 
Probability
A card is selected from an ordinary deck of 52 cards. The probability that the card is a queen or a spade is what?
asked by Anna 
science
A 400kg sports car collides with a stopped pickup 40m/s. After the collision, the sports car stops and the pickup moves forward at 15m/s. What is the momentum of the sports car before the collision? What is it the mass of the pickup?
asked by Jon 
physics
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)
asked by Sammeh 
Math
If a salesman is paid a $2,100 commission on the sale of a $35,000 sailboat, what is his commission rate?
asked by Anthony 
physics
A diver jumps from a height of 24.0m into a swimming pool. What's her speed when she enters the water? (21.7m/s) if the diver stops after sinking 3m into the water, what's the acceleration in the water? (78.4m/s^2)
asked by Sammeh 
Economics
Call Us demand function is Q=410P and MC=10+5Q. Given that TFC=$0 a)derive an equation for TC b)calculate the profit maximizing level
asked by Special 
science
A 400kg sports car collides with a stopped pickup 40m/s. After the collision, the sports car stops and the pickup moves forward at 15m/s. What is the momentum of the sports car before the collision?
asked by Jon 
Physics
Water flowing through a 2.8 cmdiameter pipe can fill a 200 L bathtub in 5.8 min.What is the speed of the water in the pipe?
asked by Ana 
Criminal Justice
I am at a loss right now.. Can anyone help me think of the names of some historical figures in police history? It does not have to be any specific state, I just need a few people who did something remembered in history.. I have searched and searched, and
asked by Bryan 
word problems
Paul read 20 pages of a book in 15 minutes. (a) What is Paul’s reading rate of pages per minute? (b) If he continues to read at the same rate, how many pages will he read in 1 hour?
asked by Joanne 
Geography
25. One problem the countries of Rwanda and Burundi share is a. a lack of means for moving their goods to foreign buyers b. a lack of fresh water supply c. the absence of fertile soil d. very small populations I'm stuck between A and D...? Thanks MC
asked by mysterychicken 
Geography
Need help writing an essay on this: How do you think the existence of nearly 3000 ethnic groups and 800 languages affect life in countries south of the Sahara? Thanks MC
asked by mysterychicken 
Math
Can someone explain to me the rules of distribution. I have a word problem which asks my opinion of applying distribution to each problem but I don't completely understand distribution and when it is applied and when it isn't.
asked by Anonymous 
7th grade
I HAVE A HOMEWORK INFORMATION OF CONTACT LENSES PROBLEMS OR INFECTIONS
asked by KARLA 
Algebra
Factor by Grouping. 15r^219r+6
asked by Lilly 
Probability
A jar contains four red, four yellow, and three green jelly beans. If Joan and Jim take one jelly bean each, the probability that they both take a red jelly bean is?
asked by Anna 
Spanish Proofread please!!
El sueño americano de Esperanza es fuerte porque ella tiene una vida difícil y aprende crear su identidad con los recuerdos de Mango St. y las penurias que ocurren. Esperanza quiere tener una casa suya con muchos árboles y una jardín grande porque
asked by Katherine 
English Lit
The double voice in Anne Bradstreets's poem.
asked by Kelly 
Chemistry
The rate constant, k, for each reaction order is equal to _____ from the linear plot. Reaction Order Answer zero ______ first ______ second ______ a. slope (m) b. yintercept c. xintercept d. negative of the slope (m) e. 0 i think zero order is maybe d?
asked by Yo 
physics
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)
asked by Sammeh 
Math
The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?
asked by Anonymous 
Probability
The probability that Robin hits the target is 0.6. The probability that John hits the target is 0.3. The probability that Robin hits the target and John does NOT hit the target is?
asked by Anna 
crt thinking
Over time, nonspecialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion
asked by Anonymous 
physics
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)
asked by Sammeh 
Physical Science
If an engine must do 500 joules of work to pull a 100 N load up to a height of 4 meters, What is the efficiency of the engine?
asked by Brittany 
Economics
Suppose that a movie theater owner faces the demand curve given by P=10.001Q where P is the price of a ticket in dollars and Q is the number of tickets sold per week. Suppose that all the cost associated with the theater other than film costs do not vary
asked by Brad 
Economics
A manufacturing firm produces output using a single plant. The relevant cost function is TC=45,000+8Q squared and the demand function is Q=1000.02P a)What is the minimum level of AC b)What is the firms profit when AC is at a minimum? c)What is the firms
asked by Special 
English Lit
What's the Puritan Thought in Mary Rowlandson, ¡§A Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson¡¨?
asked by Kelly 
Prob and Stats
A lot of pigs should be shipped to marken when their average weight is 220lb. If the pigs are too light, then fewer total pounds are sold. If the pigs are too heavy, then a lower price is received. To determine what a lot of pigs should be shipped, the
asked by Statistics help! 
Physical Science
Suppose you want to heat 40 kg of water by 20 C. How many joules of heat are required?
asked by Roberta 
Physical Science
A red light source and a green light source shine on a white screen. what color will the screen be? Explain your answer. If a blue object is placed in front of the screen, what color will it be? explain your answer
asked by Brittany 
math
1. Find the additive and multiplicative inverses for each of the following. (a) 8 (b) 3 1/2 (c) 1/4
asked by sam 
math
how do you write .0125 as a fraction and mixed number in simplest form? Little confused.
asked by Bob 
History
I need some help on this essay question for my history class. I'm confused. There are three instances of the theory of the Manifest Destiny in the US as we approach 1845. Name the three examples, discuss each of one and it's relationship to the growth of
asked by Josh 
Algebra 1
Choose the correct domailn for the function t=35+5w where 0 less than or equal to w less than or equal to 5 and w is an integer A. 0,1,2,3, 4, 5 B. 1, 2, 3, 4, 5 C. 35, 40, 45, 40, 55 D. 40, 45, 50, 55 E. 40, 41, 42, 43, 44, 45
asked by Gabriel 
9th grade
Mr. Mist’s ramp broke so he tried to lift the his 150 Newton box of ungraded papers with a pulley system. Mr. Mist had to pull the rope in his system 3 meters. The papers were lifted into his car by the pulley system which lifted the box 1.5 meters,
asked by Kevin 
math g12
How do u expand this? (a+b+c)^n
asked by p 
Geography
How has the Suez Canal been a catalyst for nationalism in Europe? First the French felt that developing countries were colonies to conquer and use at their discretion. The discretion also included building a canal for strategic military purposes. The Suez
asked by mysterychicken 
The Writer by Richard Wilbur (literature)
could you please help me We were supposed to find three extended metaphors in this poem which I did but for one of them i don't know which quote to use because we are supposed to underline the indicators for that metaphor. The one i need help on is the
asked by Cindy 
For Haley
Even though you mean well, your last three responses have been either incomplete or incorrect. The one to http://www.jiskha.com/display.cgi?id=1258225501 is totally off the mark. Please make sure you are familiar with the topic before replying.
asked by Reiny 
Preschool teacher needs your help... thx a mill
I am a preschool teacher and my 3 and 4 year olds are struggling with their numbers and colors.... What fun game could I play with them to teach them their numbers and colors?
asked by Marcia 
1301
It is often assumed that the South had better military leadership. Might it be argued that the South enjoyed superior military leadership in the East, at least until 1864, but that the North had consistently better leadership in the West?
asked by susan 
calculus
Consider line segments which are tangent to a point on the right half (x>0) of the curve y = x^2 + 1 and connect the tangent point to the xaxis. If the tangent point is close to the yaxis, the line segment is long. If the tangent point is far from the
asked by Hal 
biology
I am doing a project on the effects of various colors on plant growth. I have a part on my project that says I have to write about the lights, and plant table used. I am lost, does anyone know what might refer to? Please help
asked by Anonymous 
Math
write 1/2, 3/4, 2/3, 0.95 from least to greatest
asked by Anthony 
chemistry
what is the mass of one mole of carbon dioxide?
asked by Trace 
English1A Critical Thinking and Writing
Hi can someone proofread my introduction to a 7 page essay regarding Gender roles and Disney movies? Gender Stereotypes Society affects how the children of today perceive gender roles. From a very early age, the basic rules of membership are taught as
asked by Kuromi 
economics
QUICK MEAL IS A FAST FOOD OUTLET THAT SELLS BOX ,LUNCHES FOR $ 120 DOLLARS EACH.iTS TOTAL COST FUNCTION IS TC= 80,000+ 20q + O.O2q should the owners close the resturant?if so why?
asked by sherry 
World Religions
What ideas do you have for an introduction to my "Islamic Milestones" brochure? What I'm discussing in this brochure is about Birth, Food and Drink, Marriage and Family, and Death.
asked by AL 87 
History
The assignment is to write a speech (from Seward's perspective)that gives the reasons for purchasing Alaska. Researching I found: To maintain Russia's friendship (England's government had been sympathetic ti the Confederacy during the recent American Civil
asked by anonymous 
business
What are the steps necessary to ensure a successful system implementation
asked by april 
Math
Determine an equation of the circle that is tangent to both axes, has its center in the fourth quadrant and passes through the point (8, 9). Help please? Thanks much!
asked by Nikki 
computers
The recursive algorithm of the 4th Section of the chapter "Computational Geometry" employs a trick of presorting, in which we maintain two arrays X and Y of the input points P sorted on coordinate x and y, respectively. The algorithm starts with sorting
asked by roba 
Psycholgy
Criticisms of McVee's conceptualization of schema theory?
asked by Anonymous 
science
electricity give 2 examples of using cells......... ive put clocks and laptops i not sure if this is right. thanks for your help!
asked by sascha 
Facility Planning
has anyone done a paper about hospital/clinic that is being renovated or needs reconstruction?
asked by J 
math
if 2*2 is 4 why does 2 squared 4
asked by Mimmy 
college
Martha, the company receptionists, is told to be pleasant on the phone and represent her employer with an upbeat mood. Although people calling in can't see Martha's expression, she spends most of her day siling. Her coworkers remark that Martha always
asked by cielo 
English
With plural nouns sometimes you add an S, sometimes and es, sometimes ies, sometimes man, men. Is there a rule for this? do you know a link where I can learn more about this? Any help please.
asked by Thai Jazmine 
INFECTION CONTACT LENSES
I NEED INFORMARTION FOR THE INFECTION WHEN USE CONTACT LENSES
asked by KARLA 
Chemistry
How can you determine which acid solutions (all at 0.10 M) has the highest concentration of anions?
asked by Sandra 
probability
The probability that Alysha will miss school today is 0.15. The probability that Carla will miss school today is 0.07. The probability that both of these students will NOT miss school today is what?
asked by Anna 
english
what is an adjective that i could use to describe someone with a lot of skills in business like a business woman,
asked by sarah 
French
What is supervisor in French? Right now I am learning about professions, and this is the one I don't know
asked by Anna 
communications
Next, you will explain the nature and history of the controversy and identify the major conflicting points of view in the discussion on how Does media influence or effect children. I am having trouble finding what I need.
asked by sally 
communications
I am looking for any article to help me with that question.
asked by sally 
math
put this in an math expression you bake two baking sheets wit 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies
asked by shakyla 
social studies)
how did Florida get involved in the Revoloutionary War?
asked by Anonymous1147 
science
oe do Orchid Glads grow
asked by Tajia 
English Lit
What's the Ideological conflict in the eighteenth century of United States?
asked by Kelly 
MATH 116
Determine whether the given numbers are solutions of the inequality. 1, 17, 19, 3 y10 > 2y4 Is 1 a solution?17?19?3???
asked by ggift 
Chemistry
In an atom, an electron in which of these sublevels can absorb a photon of energy but cannot emit one? a. 3s b. 2s c. 3p d. 1s e. 3f Would it be 1s? I don't really understand, if someone could explain this to me I'd appreciate it
asked by C. 
history
for my history homework i need to make a poster or a leaflet showing different attitudes to war. ive got no idea what to do. ive looked on different websites for ideas but nothing has helped me. thankyou...
asked by yve 
medical coding & billing
the differnce between the official coding guidelines for using V codes in an inpatient and outpatient setting
asked by sharon 
Algebra1
I want to know if I got this problem right. 2x4¡Ü4x3 2x4+4¡Ü4x3+4 2x¡Ü5x 2x¡2=5x¡2 x¡Ý2.5
asked by Samantha 
critical thinking
I need an article from a newspaper or something published between the dats of September 10 2009 till December 4 , 2009. It must be a weak argument that has fallacies and can be refuted by counter examples. For the assignment i need to reconstruct the
asked by Andrew 
math
is there a way to do this problem or do i have to just guess and check. because by guessing and checking, i can't find the right answer Name a function with the following characteristics: note: f prime means the first deriviative f is continuous over the
asked by sammy 
maths
factorise: d2 + 2d + 1  e2
asked by Raquel 
Prob and Stats
Einstein claims that his true average quiz score is 90. You have sample data on 25 of his quizzes. The average for that samaple is 83, and the standard deviation for the sample (s) is 4. The alpha for this twotailed test is 0.05. Provide the calculated
asked by Statistics help! 
physics
A student pulls a backpack weighing 70 N a distance of 50m with a force 25N What amount of force does the student do?
asked by Noah 
Organic Chemistry
1. What is Dipole Repulsions? 2. How does transannular strain affect large cycloalkanes (more than 6 ring atoms)? 3. What is a 1,3Diaxial interaction?
asked by Cerise 
math
how do you find the GCF of 54 and 81?
asked by Larry 
math
f(x) = (2x)/ [(x^2 + x + 1)]^(1/2) How would I find the domain of f?
asked by alison 
American National Government
When was the FDA established? My answer is 1906. Is this correct? Thanks for your help.
asked by B.B. 
Math
1.981 × 10^6
asked by Lynn 
chemistry
how to get benzoic acid from a mixture of benzoic acid and salt?
asked by peter 
Anatomy & Physiology
What is the first layer of the skin calleed?
asked by Jasmine 
communication
I just need to find out, were can I find any info on how doe the media influence or affect children. I need the history and the controversy and identify the major conflicting points of view
asked by sally 
Ms.Sue
Thank you very much.
asked by sally 
college algebra
Solve for x: (4x+4)/5= (5x1)/2  x/3
asked by Laura 
math
divide the rectangle by tens and ones for each factor. then completes the calculation. 22X11 ~arrays and an expanded algorithm does anyone know how to do this??
asked by Anonymous 
world religions
how are Food and Drinks considered a milestone for the Islam religion?
asked by AL 87 
Religion
What should I say in the introduction to my "Islamic Milestones" brochure?
asked by AL 87 
English Lit
The double voice writer in 18th century of American Lit. And the double voice is...?
asked by Kelly 
spanish
Hi, can someone please tell me the english translations of these words? thanks no gastar, suscribirse, and transferir
asked by Rachel 
I.T
if noone runs the internet how dose it access information
asked by nicketa 
spelling
Is this how you spell "comocossy"?
asked by Aspyn 
English
an act of representing something beyond a literal person, place or object
asked by jj hardy 
MATH 116
Write the set {xx
asked by ggift 
Math
1/2, 3/4,
asked by Anthony 
math
is 2 squared 4 or 4 why?
asked by Mimmy