Questions Asked on
February 10, 2007

  1. Statistics

    A sign on the gas pump of a certain chain of gasoline stations encourages customers to have their oil checked, claiming that one out of every four cars should have its oil topped up. What is the probability that exactly 3 of the next 10 cars entering a

    asked by Matt
  2. Physics

    A vessel at rest explodes breaking into three pieces. Two pieces, having equal mass fly off perpendicular to one another with the same speed of 30 m/s. The third piece had three times the mass of each other piece. What are the magnitude and direction of

    asked by sarah
  3. Re: Physics/Math

    Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag force on a prop-driven transport flying at one-fifth the speed and half the altitude of the jet. At 10 km the density of air is

    asked by COFFEE
  4. general

    What subjects do students study in the United Kingdom at the age of fourteen? http://en.wikipedia.org/wiki/Education_in_England Scroll down. =) Thank you. English Mathematics Science Information and Communication Technology (ICT) Design Technology History

    asked by Eva
  5. Geography.

    What kind of careers can a person with a background in geography have? Plz help. Writing a paper for it. Thanks. These sites have information about careers in geography. Look at the bottom of the page in the first site.

    asked by Kate
  6. Physics/Math

    In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm hallway. If the 3.6 kg book is pushed from rest through a distance of 0.90 m by the horizontal 22 N force from the broom and then has

    asked by COFFEE
  7. chemistry

    If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) , is -192 kJ/mol. and heat of formation of water is -286, what is heat of CaO? Ca(s) etc is equation 1. CaO + 2H^+ etc is equation

    asked by nicholas
  8. Chemistry

    When 9.0g of Al were treated with an excess of chlorine, 20.0g of Al2Cl6 were collected. 2AL + 3Cl6 -------> Al2Cl6 What was the percentage yield? This is what i did so far # moles in Al = 0.333 # moles in Cl2 = 0.282 The limiting reactant = Cl2 27g of Al

    asked by Mallory
  9. Re: Physics/Math

    A 17 N horizontal force F pushes a block weighing 6.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.68, and the coefficient of kinetic friction is 0.48. Assume that the block is not moving initially. Will

    asked by COFFEE
  10. math,help

    can someone explain to me also how to do addition with equations. Solve the system by addition 5x-3y=13 4x-3y=11 its easy try properly It's not easy "It's not easy" Then how come I found the answer: x = 2; y = -1, in just five seconds by just looking at

    asked by jasmine20
  11. chemistry

    When 0.752 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 12.2C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to

    asked by nickel
  12. Physics/Math

    A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the

    asked by COFFEE
  13. After finishing your edu. what do..(repost)

    Here is the second part of my project. Please list what and why. (After finishing your education what do you hope to accomplish in your professional and personal life?) a. find a job that fulfills my expectations and be equivalent to my studies. b. make

    asked by [C]razy Baby. -[i love you] (Margie)
  14. social studies

    What did the ancient Egyptians useto stuff the nostrils of the people they were mummifying Already answered: http://www.jiskha.com/display.cgi?id=1170947850 =)

    asked by anna
  15. Physics/Math

    Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag force on a prop-driven transport flying at one-fifth the speed and half the altitude of the jet. At 10 km the density of air is

    asked by COFFEE
  16. Physics/Math

    A 17 N horizontal force F pushes a block weighing 6.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.68, and the coefficient of kinetic friction is 0.48. Assume that the block is not moving initially. Will

    asked by COFFEE
  17. Shakespeare

    If you have read The Misanthrope I have started reading it and am lost, I am trying to figure out if Philinte believes we should be hypocrites and why. Thanks I don't see "The Misanthrope" among Shakespeare's works. Are you sure you don't mean Moliere?

    asked by Cameron
  18. Home Economics/Science

    Hi i just needed a little help with my Home Eco homework,could u help me please. here are the questions: what is the social,economical,ittellectual,cultural,protective,security functions of a family. please tell in paragraphs for each section. thanks!!!

    asked by Fiji islander
  19. History :Realism/Enlightenment

    What are some scientific breakthroughs of the Age of Realism and what new ideas undermined Enlightened ideas?

    asked by Jim
  20. concentration camps

    my question is about the world war 2. i am writing a report about it and my question is can i call the places where the japanese were put by the americans concentration camps? They were referred to as internment camps or relocation centers:

    asked by Jiminy
  21. countiblis,math

    How did you get: x = 2; y = -1 for Directions: Sove the system by addition 5x-3y=13 4x-3y=11 for this type of problem there is no shading correct. or am i wrong 5x-3y=13 4x-3y=11 If you subtract the two equations you get: 5x-3y - (4x-3y) = 13 - 11 The y's

    asked by jasmine20
  22. Statistics

    An important part of the customer service responsibilities of a natural gas utility company concerns the speed with which calls relating to no heat in a house can be serviced. Suppose that one service variable of importance refers to whether or not the

    asked by Matt
  23. Chemistry

    Can somebody help me with this question? Zinc metal is placed in a solution of copper ions and undergoes an oxidation-reduction reaction. Which direction is the spontaneous reaction? Zn metal goes into solution. Cu(II) ions come out. Zn + Cu+2 ==> Zn+2 +

    asked by Lisa
  24. Re: Physics/Math

    A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the

    asked by COFFEE
  25. can someone please check my accounting answers

    Can someone please check my answers dealing with various contingencies. -For each item, indicate how the situation should be accounted for and reported for the current year. Select the best answer from the accounting and reporting treatments listed below

    asked by confused
  26. Math

    i have this question on tesselations, I got some homework and one of the questions are: A tesselation with the notation of schlafli of {3,3,4,4}. What formes are at the vertex. Draw a tesselation of it. I have been trying to figure this out for 30mins now

    asked by Stine
  27. math,help

    How do even solve this one sum of two numbers is 32. their difference is 6. what are the numbers? x-y=6 x+y=32 add the equations... 2x=38 and solve.

    asked by jasmine20
  28. math, help

    can someone show me how to do this one i have plenty of them so can you show me step by step when someone gets a chance. Thank you. Solve the system by graphing x+y=3 x+y=-1 What I would do is to put the equations in slope intercept form: y= -x + 3 y= -x

    asked by jasmine20
  29. math

    The perimeter of a rectangle is 68 f. Find the dimensions of the rectangle if the ratioof the length to the width is 9:8 I am sorry that nobody has responded earlier. The perimeter is the sum of the length of the four sides. Therefore: 2(9X) + 2(8X) = 68

    asked by mukesh
  30. MATH/LOGIC

    You have gotten reservations from Fly By Night Tours to an island off the coast of Florida. You arrive and find out that the island is occupied and administered by alligators and crocodiles. You are confronted by a committe of three of these reptiles with

    asked by Rob
  31. graphing exponential function

    P(x) = -(x-a)^4 (x-b)^3 (x-c) where a>0, b0, a

    asked by Jen
  32. Math

    Suppose income = $100, PX = $2.00 if the consumer buys less than 20 units of X, PX = $4.00 if the consumer buys more than 20 units of X. With income or composite good Y on the Y-axis, draw the budget constraint. Label ALL intercepts.

    asked by Dennis
  33. science

    please help me with the following: The methanol production process is operated at 250 - 300 ºC & @ pressures of 50 - 100 atmospheres in the presence of a copperbased catalyst. Comment on whether these operating conditions, 250 - 300 ºC & 50 - 100

    asked by LOST IN SCIENCE
  34. Science

    What is the structural formulae for the equation for the hydrolysis of lactose? It is impossible for us to draw structures on the computer. Here is a web site that may help you. http://www.rpi.edu/dept/chem-eng/Biotech-Environ/IMMOB/lactose.html

    asked by Samantha
  35. Math

    The exterior dimensions of a saef are 90 cm x 50 cm x 30 cm. if the walls of the safe are 1.5 cm thick, what is the interior volume of that safe? My guess: Subtract 1.5 cm from 90 cm and from 50 cm and from 30 cm. Then multiply to find the volume: (90 -

    asked by kay
  36. history

    where can I find information on progress of the united states between the late 1800's to 1930's. This site has a history of the U.S. You can read the sections from after the Civil War until World War II to find the progress made. Are you looking for

    asked by dayqwon jones
  37. Math

    Water is filled into a tank of base 40 cm x 40 cm. the water level rises 7.5 cm when 5 identical small marbles and 5 identical large marbles are into into the tanks and sick. If the volume of a large marble if two times that of the small one, what are the

    asked by kay
  38. Helpp plz..

    List reasons on why a real estate agent would need a background in geography. Plz help. Im writing a paper on this, but need to get the concept of it all. If a realtor in the Los Angeles area understood the geography of the county and surrounding areas,

    asked by May
  39. Calculus II

    Hello! I have a problem on volumes but I am having trouble visualizing the object. y=ln(x), y=1, y=2, x=0, about the y-axis For the graph, I graphed y=ln(x), then I have from 1 to 2. Is this one with a washer where I have integral fom 1 to 2 of pi*ln(x)^2

    asked by Shelley
  40. Chemistry

    Why is the freezing point depression of potassium ethanoate greater than that of camphor or urea (in benzoic acid), with equal moles of each? Wouldn't the Kethanoate break up into two ions per molecule?

    asked by Edward
  41. criminology

    Can someone explain to me how diversion programs are related to social process theories.

    asked by jeff
  42. english language

    meanings of the following with sentence example. accept Arctic Balloon Banana Barrel Bruise Burglar Chocolate Eight February Fierce Island Journey Niece Scissors Thief Visitor Weird Woolen Yacht accept= to aggree to do sth. ex. She accepted our offer.

    asked by nadha
  43. english ecpe degree

    Hello, This year I am sitting my ECPE exam of the university of Mishigan. Where can I find useful practice on the Internet? I would be grateful if you could help me.. Eva Ch. I don't know about practice, but here's a very interesting website:

    asked by Eva
  44. Chemistry

    I am having trouble answering a question and need some advise. If one proton is taken from a nucleus of a sample of Au79 i would get platinum 78 and if one was added i would get Mercury 80. I am trying to decide which one is the more valuable financially.

    asked by Flame
  45. domain

    domain of exponential function from y axis & logarithmic function from x axis?

    asked by Jen
  46. math

    What was the percentage increase in motor vehicle production in motor vehicle production in countries outside the united states from 1950 to 1997?

    asked by stacy
  47. social studies

    child labor in africa anything baout it! pleae help its due monday! http://www.google.com/search?q=africa+child+labor&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA

    asked by dorsey
  48. math, help

    What are two solutions for 3x-y=0 am i correct on this inorder to graph (0,0) and (2,6) Because the line goes through (0,0) so how do i get two solutions from that line? You can get two solutions from that line because the first solution (0,0) is from the

    asked by jasmine20
  49. math

    I have this question on tesselations, I got some homework and one of the questions are: A tesselation with the notation of schlafli of {3,3,4,4}. What formes are at the vertex. Draw a tesselation of it. I have been trying to figure this out for 30mins now

    asked by Stine
  50. Statistics

    A specially equipped trauma emergency room at a hospital has been in operation for 40 weeks and has been used a total of 240 times. Assuming the weekly pattern of demand for this facility is Poission, compute the following: 1) The probability that the room

    asked by Matt
  51. Leonardo Da Vinci

    I am looking for a cool project idea. My last two projects where a website and a diagram. I have run out of ideas. http://www.google.com/search?sourceid=navclient&gfns=1&ie=UTF-8&rls=SUNA,SUNA:2006-45,SUNA:en&q=leonardo+da+vinci You could find some of the

    asked by Samantha
  52. Math

    A metal sheet made up the faces of a cube measured 12 cm x 12 cm x 12 cm. find the total area of metal sheet required A cube has six sides, each 12x12 cm^2 12X12X6=864cm

    asked by Anonymous
  53. Art Research Paper

    It's got to be min. 2 pages. I'm doing it on Andrew Wyeth. This is the only guideline I was given: "As part of your course requirements, you need to choose an artist and research the artist and his or her work." Any ideas on at outline/what I should really

    asked by Claire
  54. art

    What does symmetrical balance means http://www.google.com/search?hl=en&rls=com.microsoft%3Aen-us%3AIE-SearchBox&rlz=1I7SUNA&q=symmetrical+balance Lots of good information in here. =)

    asked by Espoir Simbenga
  55. econ question about Trade

    The following table provides date on the productivity of a single unit of resource in producing wheat and microchips in both canada and jpn wheat microships canada 50 20 jpn 2 12 now if terms of trade was 2 microships for one tonne of wheat. Which country

    asked by tofu
  56. Oedipus

    Hi! I have a paper on Oedipus as a character of "appalling greatness." Is this how the audience for which Sophocles wrote the play would see him, or is it a "modern misinterpretation?" and This critic has argued "Oedipus" has the most impact of any ancient

    asked by Emma
  57. Bible - Amos

    Hi, I'm in a social studies class and we're studying the Bible, which I have trouble comprehending. I need to write on why Amos chose to single out the "cows of Bashan" as his scorn subjects. Would this be because women appeared to be the main cause of

    asked by Emma
  58. Business --- Kelley School in Indiana University

    How is the undergraduate program at Kelley School of Management in Indiana University? Does it have a very good reputation among business fields? Thank you for using the Jiskha Homework Help Forum. Here is their website: http://kd.iu.edu/ Here is an

    asked by Jack
  59. English

    I want to know all symbols in this lyric and the meaning of "on the eve of my defeat" It's for my presentation Is anybody listening? Can they hear me when I call? I'm shooting signals in the air 'Cause I need somebody's help I can't make it on my own So

    asked by Pat