Questions Asked on
April 11, 2007

physics
Three point charges, q1, q2, and q3, lie along the xaxis at x=0, x=3 cm, and x=5 cm, respectively. Calculate the magnitude and direction of the electric force on each of the three points when q1=+6.0 muC, q2=+1.5 muC, and q3=2.0 muC. I would add the
asked by Mischa 
chemistry
Why if you dissolve cobalt chloride solution in distilled water and then pour acetone in it, the bottom part of the graduated cylinder is red and the top part is blue? What do you mean by it has one color with water of crystallization? CoCl2*6H2O is a
asked by Lydia 
calcq
2 The earth’s atmospheric pressure p is often modeled by assuming that the rate dp/dh at Which p changes with the altitude h above sea level is proportional to p. Suppose that the pressure at sea level is 1013 millibars (about 14.7 pounds per square
asked by kaela 
Chemistry
Calculate the percent yield of iron if 950 g of Fe3O4 underwent the reaction shown in the chemical equation below and 533 g of Fe was isolated from the reaction mixture. Fe3O4 (s) + 2 C(s) > 2 CO2 (g) + 3 Fe(s) 1). 25.9% 2). 77.5% 3). 56.1% 4). None of
asked by Van jan 
Electric forces
An electron is released above the earth's surface. A second electron directly below it exers just enough of an electric force on the first electron to cancel the gravitational force on it. Find the distance between the two electrons. I thought if I just
asked by Sara 
Chemistry
Consider the reaction Zn(OH)2(s) + 2CN(aq) Zn(CN)2(s) + 2OH(aq) a) Calculate K for the reaction. (Ksp Zn(CN)2= 8.0 x 10^12) b) Will Zn(CN)2 precipitate if NaCN is added to a saturated Zn(OH)2 solution? I tried splitting this into two equations:
asked by Kristina 
Calculus
3) Consider rectangles located as shown in the first quadrant and inscribed under a decreasing curve, with the lower left hand corner at the origin and the upper right hand corner on the curve y = sqrt(9  x2) Find the width, height and area of the largest
asked by Anonymous 
Physical Science
What are the 4 nuclear forces? Out of the 4 which one is the strongest and which one is the weakest? Thanks http://hyperphysics.phyastr.gsu.edu/hbase/forces/funfor.html THANK YOU As a side note, these are not nuclear forces. They are the four fundamental
asked by Zach 
Finance
A 12year bond has an annual coupon rate of 9%. The coupon rate will remain fixed until the bond matures. The bond has a yield to maturity of 7%. Which of the following statements is CORRECT? (Points: 4) The bond is currently selling at a price below its
asked by Rajini 
Chemistry
Wow, ok, that helps a LOT!! I guess you can't very easily balance an equation that can never happen! :) Thanks a lot! Just to make things clear, wouldn't it have to be Mg3(PO4)2, from balancing the charges? Because PO4 is 2 and Mg is +3, so it would need
asked by Lacey 
Finance
Which of the following events would make it more likely that a company would choose to call its outstanding callable bonds? (Points: 4) Market interest rates decline sharply. The company's bonds are downgraded. Market interest rates rise sharply. Inflation
asked by Rajini 
finance
Which of the following statements is CORRECT? (Points: 4) Junk bonds typically provide a lower yield to maturity than investment grade bonds. A debenture is a secured bond that is backed by some or all of the firm's fixed assets. Subordinated debt has less
asked by Rajini 
CHEMISTRY
Aluminum hydroxide reacts with an excess of hydroxide ions to form the complex ion Al(OH)4 a)Write an equation for this reaction b) Calculate K. c) Determine the solubility of Al(OH)3 in (mol/L) at pH 12.0 My equation was Al(OH)3 + OH > Al(OH)4 but
asked by Jessica 
Finance
Rollincoast Incorporated issued BBB bonds two years ago that provided a yield to maturity of 11.5%. Longterm riskfree government bonds were yielding 8.7% at that time. The current risk premium on BBB bonds versus government bonds is half of what it was
asked by Rajini 
Chemistry
Using the following information, identify the strong electrolyte whose general formula is Mx(A)y * zH2O Ignore the effect of interionic attractions in the solution. a. A"is a common oxyanion. When 30.0 mg of the anhydrous sodium salt containing this
asked by Gaby 
Chem
Hydrochloric acid can be prepared using the reaction described by the chemical equation: 2 NaCl(s) + H2SO4(l) > 2 HCl(g) + Na2 SO4(s). How many grams of HCl can be prepared from 393 g of H2SO4 and 4.00 moles of NaCl? A) 4.00 g B) 2.49 g C) 146 g D) 284
asked by Jessica 
Maths
Solve this equation fo rx in the interval 0
asked by Edward 
Math
In a collection of nickels, dimes, and quarters worth &6.90, the ratio of the number of nickels to dimes is 3:8. The ratio of the number of dimes to quarters is 4:5. Find the number of each type of coin. Use a coin value chart to help. well, 4:5 is the
asked by Natasha 
Math
The sides of a triangle measure 2, 3 and 4. If the smallest side of a similar triangle measures 8, then the measure of the largest side is? Since eight is four times as large as two, the new triangle largest side will be four times four.
asked by Pam 
children/violence
Many children grow up with a considerble amount of violence in their lives protrayed in movies,video games,television,witnesing family violence,or being victims of child abuse themselves. Research on the effects of violence on children indicates: 1.that
asked by Nikki 
math, algebra,graphs help
THe directions state: (A)Complete the table, (B) describe the resulting graphs by identifying the vertex point, (C)the graph’s direction, (D) and any axis intercepts gleaned from the table or graph Problem #3 Equation : y = 2x^2 My answers: A) Table:
asked by jasort20 
Anatomy
Destribe the mechanisms that permit the movement of each of the following substances into the cell water gluteincose oxygen pro water glucose oxygen protein
asked by Tina 
Easy (yet confusing) Algebra
These problems are pretty easy, but confusing (as stated in the subject line). 2x+5x=10 3x+42x=11 I know there are supposed to be two answers for each problem, for the first problem I got 5 and for the second problem I got 7. I can't figure out the
asked by Emily 
math
n added to a number equals 14. A number added to 14 equals 114. What does the variable y represent? And what number plus 14 equals 114? I keep coming up with n = 0 and x = 100 I think we are all trying to understand what your problem really says. Where
asked by geo 
Finance
Which of the following would be most likely to increase the coupon rate that is required to enable a bond to be issued at par? (Points: 4) Adding a call provision. Adding additional restrictive covenants that limit management's actions. Adding a sinking
asked by Rajini 
vocab URGENT!
what is an antonym of paraphernalia and a sentence using it? and i also need if it can be translated to a noun verb adjectvie and adverb thanks!!!! Thank you for using the Jiskha Homework Help Forum. Since you are working on vocabulary, be sure to have a
asked by anonymous 
Early Childhood Ed.
Careful teacher supervision and the establishment of rules are keys to preventing the chances of unintentional injuries during indoor and outdoor play. What is the most important quality of a good freeplay supervisor? 1. Someone who knows when and how to
asked by Thalia 
Algebra,Math, graphs help
This is what the directions state to do: (A) Complete the table,(B)describe the resulting graphs by identifying the vertex point, (c) the graph’s direction, (d) and any axis intercepts gleaned from the table or graph. Problem #1 Equation is : y = x + 1
asked by jasort20 
chemistry
what is the thermal energy change as 175.0g, of water drops from 75.00 dgrs C to 15.50 dgrs C??? q = mass H2O x specific heat water x (Tfinal  Tinitial). mass H2O = 175.0 g specific heat water = 4.184 J/g*C Tf = 15.50 Ti = 75.00 Solve for q. Check my work
asked by crystine cole 
calculus
Differentiate y=lnx You ought to have this memorized. y'=1/x for y= ln x dy/dx = 1/x This is the most basic and fundamental of log derivatives. If you are studying Calculus, and the topic is logs, I fail to understand why you asked that question. IS there
asked by quita 
Physics
2 Questions. 1. If you wished to produce a sound with a wavelenght in air equal to the length of the room, 10m, what would be its frequency? 2.You note a 4.0 second delay for an echo in a canyon. What is the distance to the wall of the canyon? 1. Use the
asked by Trey 
Math
The sum of two numbers is s. If one of the numbers is n, the second number can be expressed as? I will be happy to critique your thinking or work. what are polygons with the same size
asked by Pam 
Finance
If a financial institution is backed by any government program or indirect guarantee, any bonds purchased must be "rated" at investment grade or better. The rating agency is a third party with no connections with the bond issuer or the bond investor. Which
asked by Rajini 
Algebra
Can you pleas Solve the quadric equation step by step 4x square =13x+2 4x^2 = 13x + 2 subtract 13x and 2 from both sides 4x^2  13x  2 = 0 Now use the quadratic formula, since it does not factor.
asked by Tony 
statistics
The average time in data to process orders received by a metal fabrication company is to be estimated. A sample of 20 orders is randomly selected from a total of 200 orders processed over a 6 month period and the sample mean is 5.4 days with a standard
asked by angel 
Phoenix
In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost $10,000 to produce and that 300 items will
asked by Sarah 
english
the unknown citizen. Please clarify your three words and ask it as a question. what is the situation [speaker, setting, audience and occasion] in the poem the unknown citizen by w.h. auden. Please tell us your thoughts and we'll be glad to critique it for
asked by janelle 
Algebra
If the sides of of a square are decreased by 2cm, the area is decreased by 36cm square. What are the dimensions of the original square? original square: x by x new square: x2 by x2 old area = x^2 new area = (x2)^2 The difference in these area = 36
asked by Tony 
Elem.Ed.
Which would be one of the best ways that a teacher can help a student deal with stress? A. Applying proper management techniques. B. Counseling children and families on the effects of stress. C. Providing soothing and relaxing handson activities. I do not
asked by Keisha 
alg2
how would you set this problem up using pascal's triangle? (x+y)5 (raised to the 5th power) 5th row, 6 terms. http://en.wikipedia.org/wiki/Pascal's_triangle 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 1 6 15 20 15 6 1 so (x+y)^5 = x^5 + 5x^4y + 10x^3y^2 +
asked by sara 
English
Teenagers’ parents, often busy, can not set aside sufficient time... Is the 'often busy' part an appositive? No. http://www.chompchomp.com/terms/appositive.htm Doesn't often busy describe parents? Busy describes parents. But it's an adjective phrase.
asked by Katie 
Finance
Some institutional investors prefer zero coupon bonds over coupon bonds of the same maturity (and same quality). They will ever purchase a lower YTM zero coupon than the same maturity coupon bond. Which statement below best describes why they do this?
asked by Rajini 
Safety
How does worker's compensation work in West Virginia? What has it been designed to do? Thank you for using the Jiskha Homework Help Forum again. If you have a search engine, such as Google, you will find lots of information. Here is some of it: 1.
asked by Cindy 
Geology
1) Granite is an intrusive, felsic rock, which may be produced by partial melting or fractional crystallization. Explain how these processes can produce felsic magmas from more mafic parent magmas 2)The age of granite can be determined using radiometric
asked by Adam 
if you're in the mood for riddles
The riddle forum is back up: http://www.jiskha.com/net_riddle There are some truly clever riddles being posted. The following is one of my favorites. Try not to scroll down because then you'll see the answer(s):
asked by Leo 
combinations help
a menu has a list of seven appetizers. your party will choose three. which of the following represents the number of possible choices? 7/3!, 7c3,or 7!3!. 7 appetizers, choose 3. Clearly the answer is 7 choose 3.
asked by dillon 
english  media
what are four cinematic techniques used in the film Rocky? Thanks so much I used Google to search for cinematic techniques rocky, and here are the results. I hope you can find your answer in here:
asked by ana 
math
High Rise Worksheet Mr. H. Y. Perbole Mr.Ridge, we have a serious problem. The summer heat has caused the milelong bridge you built for us last fall to expand 2 feet in length. This matter needs your immediate attention. Since the bridge is only
asked by sydney z. 
biology s103
Has anyone got any clues on tma 7 q3? I have posted the question regarding meiosis and Huntington disease but im still stuck.
asked by Hol 
Science
Describe 3 ways to make it easier to move a load up the ramp other than by making the ramp longer or less steep. Reduce friction (ie wheels) Put it under water (reduces effect of gravity) Use a tool to move it (pulleys)
asked by Haya 
thermochemistry
what is the mass of a lead block that if heated to 100.0 dgrs C and placed in a container with 50.0g of ice at 0.00dgrs C produces a final water sample of 15.0dgrs C? Sh of Pb= 0.128J/g dgrsC step by step solution and answer q1 for Pb block = mass x sp.h.
asked by crystine cole 
Finance
Yield to maturity (YTM) is the calculation utilizing the current price of the investment, the coupon cash flows and the par amount at maturity. However, the mathematics of the YTM calculation is virtually wrong or incorrect in the real world for coupon
asked by Rajini 
math
how do I find the mode of each set of numbers.9, 8, 10, 9, 9, 10, 8 Mode is most common: which is the most common?
asked by carmen 
Algebra
I need some help multiplying these two sets of binomials. 1. (x+5)(x+3) so I think the answer to this one is x^2+15 is this correct? 2. (x5)(x+3) I think the answer to this one is x^215 but how do you know when to make it a + or a  in the solution? 1.
asked by Aubrey 
maths
rufus and christable share 120 tadpoles in the ratio 3:5.How many tadpoles the easy recive do u mean how many do they each receive?? it is simple.. there are 8 parts so divide 120 by 8 to get one part then work it out divide by 120. That gives you ONE
asked by ryan 
Algebra
What is the factorization of x^2+8x+15? 3*5=15, and 3+5=8.
asked by Aubrey 
English
i need ajectives (5), adverbs(5), similie (1), idiom (1), metphor (1) decribing Violet Beauregarde i reli need this i don't have the movie so i cant not watch it and my some of my internet doesnt work soo i cant watch it on youtube or otha sites so can
asked by Anonymous 
Finance
Most institutional investors purchase longterm bonds, as assets for their investment portfolios, to offset longterm liabilities they have on their balance sheets. Which statement below helps explain why do they not like call provisions in bonds? (Points:
asked by Rajini 
finance
Which of the following statements is CORRECT? (Points: 4) Junk bonds typically provide a lower yield to maturity than investment grade bonds. A debenture is a secured bond that is backed by some or all of the firm's fixed assets. Subordinated debt has less
asked by Rajini 
Math
What is the union of X and Y? X. (3,5,9) Y. (5,10,15) Is the answer 5? The Union of two sets are all those elements that belong to one set OR the other. so X U Y = {3,5,9,10,15}
asked by Chris 
US Department of Labor
I asked this question eariler and told it needed to be rephrased...this is how my teacher asked it: Find the top ten violations that most United States industries are guilty of conducting. Pick a couple of other foreign countries and try to determine what
asked by Cindy 
Science Fair
I'm doing my AMAZING (my teacher is hovering over me right now, I don't think that) project over dissolving sugar into different liquids in different temps. It's super boring, but I'm forced to do it anyway. Does anyone here know of some science fair
asked by Kirby 
science
what is a fungi that doesnt fit into the other standard groups of fungi? Since this is not my area of expertise, I searched Google under the key words "fungi grouping exception" to get these possible sources: http://www.bioimages.org.uk/html/T74.HTM
asked by preston 
vocab
what does waylaid mean? http://dictionary.cambridge.org/define.asp?key=89472&dict=CALD
asked by christina 
Math
Brock and Buzz have 10 friends. Buzz has 2 fewer than Brock. How many friends does Brock have? Is the answer 8? x + (x2) = 10 take it from there
asked by Chris 
English
I am looking for article talk about bird flu? also if you can tell me about the companies that tell that people who afraid from the bird flu to buy their product( what i mean by that how they manipulating their products) Here's a collection of articles
asked by matt 
Physics
Express the acceleration as a multiple of the gravitational acceleration, g (9.8 m/s^2) a=15 m/s divide by g, ie 15g's = 15*9.8m/s
asked by Katie 
math
how do you convert 2pie radians per min. to miles per hour? You cant, unless you have some way of relating the angle to distance. If this is circular motion, you need the radius.
asked by anna 
MATHS
Solve the following equations if 0
asked by T_om 
SCIENCE HELP!!??
Hello My question which is making me totaly confused is that my teacher has given me the test for starch slightly different to what the bbc website had gave The bbc website says : First of all you add the leaf into boiling water in order to kill it. Then
asked by Blossom 
US Department of Labor
I need to know the top ten violations that most United States industries are guilty of conducting. also i need to know what are some of the others countries top violations are. thanks You should probably research OSHA on Google and other search sites. You
asked by Cindy 
Statistics
For Mathguru_ from statistic question on Tuesday April 10, 2007 follow up question what if I wasn't given the standard deviation either how would I solve this problem Other tutors can help, but without the previous information, it is impossible to help
asked by Angel 
Math
If 4x + y = h then x is equal to? I will be happy to critique your thinking or work.
asked by Pam 
calc
differentiate y=ln(x^5e^x) Please show the steps in solving change it to y=ln u dy/dx= dy/du * du/dx and of course, dy/du= 1/u I will be happy to critique your work. 1/4x * 4/4x = 4/x Is this correct?
asked by quita 
math
Business and finance. The following scores were recorded on a 200point final examination:193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.(a) Find the mean final examination score.(b) Find the median final examination score.(c) Is
asked by carmen 
science
what is tetrahydrocannabinol? http://en.wikipedia.org/wiki/Tetrahydrocannabinol thanx alot
asked by LYNN 
math
w2+1/64 In my Adv. Math class my teacher shaded in my to dark to I can't see the height. Can you give me a formula to find the height of a triangle? Jennifer, I don't know what you are asking. Please repost with more information. Thanks for asking.
asked by jennifer 
roots
what root goes in this blank? i can't figure it out. She wore ________sox at the beach. argyll bobby crew (none of which are roots, however; sorry) =( How about "no" (root of "nothing")? I hope this helps. Thanks for asking.
asked by Jordan 
math fractions
the mendozas videotaped a bulldogs game to watch later. the game lasted 93minutes. the family watched the tape until it became obvious that the bulldogs would lose. if the mendozas watched 2/3 of the tape did they watch for more or less than an hour?
asked by cayman 
sports
can anyone unscramble oeblssaetn its a baseball word. if you can you're my hero =] stolen base
asked by Jane 
Economics
"The Household sector has devoted much of this windfall gain in income towards a greater hunger for imports" When referring to a LJ (LeakagesInjections) graph will this be a change in EXOGENOUS IMPORTS or Marginal Propensity to Import? With your
asked by Julian 
Thailand & South Africa
I need to know the occupational health and safety statistics for Thailand and South Africa. and how they compare? Thank you for using the Jiskha Homework Help Forum. Hopefully the sites I gave Ashley earlier on Worldwide Occupation Health and Safety will
asked by Cindy 
Anatomy & physiology
Describe the passage of a protein molecule from its origin on a prtion of the rough endoplasmic reticulum to the secretion out of the cell. http://en.wikipedia.org/wiki/Endoplasmic_reticulum
asked by Tina 
Anatomy
Describe the mechanisms that permit the movement of each of the following substances into the cell water glucose oxygen protein http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/D/Diffusion.html
asked by Tina 
ALGEBRA 1
change 50 to 25*2 sqrt 50 = 5 sqrt2 change 8 to 4*2 Nope: (sqrt3sqrt5)(sqrt3sqrt5). remember (ab)(ab)= a^22ab + b^2 Simplify.Express in simpliest radical form. 1.3sqrt2 +sqrt50 Cannot be solve. Terms have unlike radicals 2.3sqrt8+2 sqrt16 Terms have
asked by bobpursley 
math
the mendozas videotaped a bulldogs game to watch later. the game lasted 93 minutes the family watched the tape until it became obvious that the bulldogs would lose if the mendozas watched 2/3 of the tape did they watch for more or less than an hour? 2/3 of
asked by cayman 
Psychology
I need to find a source for my paper and it is on Sigmund Freud's panic disorder. http://www.google.com/search?source=ig&hl=en&q=Freud+panic+disorder
asked by Bobby 
early childhood
Can someone please help me with this? I think I have the right answerjust need verification. Which statement most accurately describes "normal" growth and development of the preschool child? 1.It occurs at a uniform rate for all chidren. 2.It is a
asked by Bethany 
journalism
you're laying out an inside page in a 5column format. the ads stack up pretty high; your available space for news is 6 inches deep and the full page (5 columns) across. you need to dummy two stories: one 15 inches long, the other 10 inches. neither has
asked by juliek 
Finance
Assetliability management is the term where the maturity of an asset is similar to the time that the liability expires. Which of the following is not good assetliability matching? (Points: 4) Brand new quality car financed by a 5year loan. Retirement
asked by Rajini 
Algebra I
Am I correct with this using (ab)^2 (sqrt3)^22(sqrt3)(5) +(sqrt5)^2 =32sqrt15+5 =82sqrt15 If you were doing (sqr(3) + sqr(5))^2 yes, you are right.
asked by DANIELLE 
Maths
if 0
asked by T_om 
math
please help me to find the median of each set of numbers 1, 4, 9, 15, 25, 36 Median: the dividing point. Since there is no middle number (the number of elements is even), take the average of the two in the middle.. median= (9+15)/2=12 225
asked by carmen 
math
Please help me to find the mode of each set of numbers.41, 43, 56, 67, 69, 72 There is no mode here. Mode is the most frequent value, all are the same frequency here.
asked by carmen 
Social Studies
Rome began as a settlement on the what? With regard to ALL your posts, this is a homework help board and not a homework do board. Someone may help by providing links to information but that probably is available in your text or notes, too. Check your atlas
asked by Quagabaga Miller 
math
how would u solve this: 2sin(x)1=0 exact step to solving would be nice thanx Add one to both sides and divinde both sides by 2. sin x = 1/2 Now look up the angle that has a sine of 1/2. That's the answer what is a derpeciation expense The word
asked by anna 
reading
i have to read the hobbit for school and i don't get the first 2 chapters please help! www.sparknotes.com/lit Then look it up in the H section. =)
asked by anonymous