# Questions Asked onApril 11, 2007

1. ## physics

Three point charges, q1, q2, and q3, lie along the x-axis 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

2. ## 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

3. ## 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

4. ## 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

5. ## 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

6. ## 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:

7. ## 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

8. ## 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.phy-astr.gsu.edu/hbase/forces/funfor.html THANK YOU As a side note, these are not nuclear forces. They are the four fundamental

9. ## Finance

A 12-year 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

10. ## 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

11. ## 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

12. ## 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

13. ## 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

14. ## Finance

Rollincoast Incorporated issued BBB bonds two years ago that provided a yield to maturity of 11.5%. Long-term risk-free 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

15. ## 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

16. ## 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

17. ## Maths

Solve this equation fo rx in the interval 0

18. ## 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

19. ## 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.

20. ## 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

21. ## 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:

22. ## 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

23. ## Easy (yet confusing) Algebra

These problems are pretty easy, but confusing (as stated in the subject line). |2x+5|-x=10 |3x+4|-2x=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

24. ## 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

25. ## 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

26. ## 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

27. ## 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 free-play supervisor? 1. Someone who knows when and how to

28. ## 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

29. ## 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

30. ## 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

31. ## 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

32. ## 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

33. ## 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

34. ## 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.

35. ## 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

36. ## 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

37. ## 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

38. ## 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: x-2 by x-2 old area = x^2 new area = (x-2)^2 The difference in these area = 36

39. ## 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 hands-on activities. I do not

40. ## 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 +

41. ## 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.

42. ## 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?

43. ## 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.

44. ## 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

45. ## 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):

46. ## 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.

47. ## 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:

48. ## math

High Rise Worksheet Mr. H. Y. Perbole- Mr.Ridge, we have a serious problem. The summer heat has caused the mile-long bridge you built for us last fall to expand 2 feet in length. This matter needs your immediate attention. Since the bridge is only

49. ## 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.

50. ## 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)

51. ## 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.

52. ## 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

53. ## 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?

54. ## 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. (x-5)(x+3) I think the answer to this one is x^2-15 but how do you know when to make it a + or a - in the solution? 1.

55. ## 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

56. ## Algebra

What is the factorization of x^2+8x+15? 3*5=15, and 3+5=8.

57. ## 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

58. ## Finance

Most institutional investors purchase long-term bonds, as assets for their investment portfolios, to offset long-term liabilities they have on their balance sheets. Which statement below helps explain why do they not like call provisions in bonds? (Points:

59. ## 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

60. ## 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}

61. ## 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

62. ## 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

63. ## 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

64. ## vocab

what does waylaid mean? http://dictionary.cambridge.org/define.asp?key=89472&dict=CALD

65. ## Math

Brock and Buzz have 10 friends. Buzz has 2 fewer than Brock. How many friends does Brock have? Is the answer 8? x + (x-2) = 10 take it from there

66. ## 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

67. ## 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

68. ## 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.

69. ## MATHS

Solve the following equations if 0

70. ## 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

71. ## 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

72. ## 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

73. ## Math

If 4x + y = h then x is equal to? I will be happy to critique your thinking or work.

74. ## calc

differentiate y=ln(x^5-e^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?

75. ## math

Business and finance. The following scores were recorded on a 200-point 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

76. ## science

what is tetrahydrocannabinol? http://en.wikipedia.org/wiki/Tetrahydrocannabinol thanx alot

77. ## 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.

78. ## 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.

79. ## 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?

80. ## sports

can anyone unscramble oeblssaetn its a baseball word. if you can you're my hero =] stolen base

81. ## Economics

"The Household sector has devoted much of this windfall gain in income towards a greater hunger for imports" When referring to a L-J (Leakages-Injections) graph will this be a change in EXOGENOUS IMPORTS or Marginal Propensity to Import? With your

82. ## 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

83. ## 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

84. ## 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

85. ## ALGEBRA 1

change 50 to 25*2 sqrt 50 = 5 sqrt2 change 8 to 4*2 Nope: (sqrt3-sqrt5)(sqrt3-sqrt5). remember (a-b)(a-b)= a^2-2ab + b^2 Simplify.Express in simpliest radical form. 1.3sqrt2 +sqrt50 Cannot be solve. Terms have unlike radicals 2.3sqrt8+2 sqrt16 Terms have

86. ## 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

87. ## 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

88. ## early childhood

Can someone please help me with this? I think I have the right answer--just need verification. Which statement most accurately describes "normal" growth and development of the pre-school child? 1.It occurs at a uniform rate for all chidren. 2.It is a

89. ## journalism

you're laying out an inside page in a 5-column 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

90. ## Finance

Asset-liability 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 asset-liability matching? (Points: 4) Brand new quality car financed by a 5-year loan. Retirement

91. ## Algebra I

Am I correct with this using (a-b)^2 (sqrt3)^2-2(sqrt3)(5) +(sqrt5)^2 =3-2sqrt15+5 =8-2sqrt15 If you were doing (sqr(3) + sqr(5))^2 yes, you are right.

if 0

93. ## 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

94. ## 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.

95. ## 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