Questions Asked on
September 11, 2006

  1. Chemistry

    For a lab, we have to figure out how to separate a mixture of sodium chloride, sand, iron fillings, copper shot, and benzoic acid and recover all five components in their dry, solid states. Any ideas on how to accomplish this? Thanks! Heat and condense the

    asked by Felicity
  2. Physics

    A book sits on a horizontal top of a car as the car accelerates horizontally from rest.If the coefficient static of friction between the book and the car top is 0.450,what is the maximum acceleration the car can have if the book is not to slip? I remember

    asked by fluffy
  3. science

    An elevator cab in NY Marriott has a total run of 190 m . IT's max speed is 305m/min Its acceleration and deceleration both have a magnitude of 1.22m/s^2 a) how far does the cab move while accelerating to full speed from rest? b) How long does it take to

    asked by Jen
  4. Language Arts

    I left my McMillian text book for language arts in school today and I have homework on page 2 and 3. I'm in the 6th grade does anyone have that book. I really really need those questions. I don't know if this gives page numbers that correspond with your

    asked by Tatyana
  5. chemistry

    Distinguish between table salt dissolving in water and sugar dissolving in water. The formula for table sugar is C12H22O11. It freely dissolves in water as the sugar molecules; i.e., it is in solution as C12H22O11. On the other hand, table salt is NaCl.

    asked by sue
  6. Chemistry

    How many milimetres of 0.114 M sulphuric acid solution provide the sulfuric acid required to react with the sodium hydroxide in 32.3 ml of 0.122 M NaOH according to the following equation? H2SO4 + 2 NAOH ---> Na2SO4 + 2 H20 A millimeter is a unit of

    asked by Cadi Almond
  7. English

    Mother to Son by Langston Hughes Well, son, I'll tell you: Life for me ain't been no crystal stair. It's had tacks in it, And splinters, And boards torn up, And places with no carpet on the floor-- Bare. But all the time I'se been a-climbin' on. And

    asked by Katrina
  8. help me please 14th amendment

    explain how the court has interpreted the fourteenth amendment to apply the bill of rights to the states. i have visited all the websites but i'm not sure of what they are saying. i was wondering if someone could summarize in simpler words. here's what i

    asked by Anonymous
  9. physics

    A jumbo jet must reach a speed of 360 km/h on the runway for takeoff. What is the least constant acceleration needed for takeoff form a 1.80 km runway? I couldn't figure out which equation to use I think there are a couple of equations involved here.

    asked by sarah
  10. Physics

    A rock is thrown vertically upward with a speed of 11.0 m/s from the roof of a building that is 70.0 m above the ground. Assume free fall. In how many seconds after being thrown does the rock strike the ground? GOT THIS!!!! t=5.07s What is the speed of the

    asked by Josh
  11. Physics

    A 0.525 kg ball starts from rest and rolls down a hill with uniform acceleration, traveling 154 m during the second 10.0 s of its motion. How far did it roll during the first 4.00 of motion? I thought the answer was .2464 m, but it has been a couple of

    asked by Josh
  12. physics

    A car traveling 56 km/h is 24 m from a barrier when the driver slams on the brakes. The car hits the barrier 2s later a) what is the car's constant deceleration before the impact? b)How fast is the car traveling at impact? I don't get the impact parts...

    asked by sarah
  13. physics

    A hoodlum throws a stone verticlly downwarsd with an inital speed of 12m/s from the roof of a building,30m above the ground a)How long does it take the stone to reach the ground? b)What is the speed of the stone at impact? What would be the 2 equations for

    asked by ben
  14. Physics

    An athlete starts at point A and runs at a constant speed of 5.40 m/s around a round track 250 . in diameter. Find the x component of this runner's average velocity between points A and B. GOT THIS!!! 3.4 m/s Find the y component of this runner's average

    asked by Josh
  15. math

    how many decimeters are there in: a meter: a decameter: a kilometer: 10 100 10000

    asked by alejandra
  16. ENGLISH

    THE SUBJECT OF A SENTENCES MAY BE WHAT PART OF SPEECH What about nouns and pronouns, including proper nouns? Here are some excellent websites that will help with basic grammar questions like yours: http://www.chompchomp.com/menu.htm Click on TERMS and find

    asked by SHORTY
  17. Math

    What do you call numbers that cannot be arranged into 2-row arrays? multipication After some research I finally understand the question. Those would be the odd numbers or the numbers without a factor of 2 in them. After much stress and contemplating, I

    asked by Trudy
  18. social studies

    What are the three main types of resources used for making, selling, and using goods and services? a. soil, water,air b. money, barter, credit c. natural, human, capital d. gold, silver, broze c.

    asked by alexis
  19. gce further mathematics

    The roots of the equation x^4 - 3x^2 + 5x - 2 = 0 are a, b, c, d. By the relation y=x^2, or otherwise, show that a^2, b^2, c^2, d^2 are the roots of the equation y^4 - 6y^3 + 5y^2 - 13y + 4 = 0. Let y = x^2 and substitute that into the x polynomial. y^2 -

    asked by lee
  20. math

    What is the mathematical name for the repeating bar that we place over the repetend? This is the term given in the Oxford English dictionary: vinculum. But I seriously doubt many mathematicians would know this Bob. All I've ever heard it called is: that

    asked by bob
  21. math

    i still don't get it im comfused on how many centimeters are there in a decimeter, a meter, and a hectometer 10cm=1dm 100cm=1m 10000cm=1hm There are 100 centimeters in a meter. We know that becase of the prefix centi-. Please re-read DrBob222's post. It

    asked by alejandra
  22. All

    What does a 71% equal? im worried about my grades Anyone? i really need help It all dependes upon the instructor's grading scale. Most give a syllabus at the beginning of the semester which tells you how grades are assigned, the number of tests during the

    asked by Roxy55
  23. world history

    who won the English Civil War? What happened to King Charles? This site has your answers. http://en.wikipedia.org/wiki/English_Civil_War

    asked by Bryan
  24. physics

    a rocket propeled sled moved along a track at 1020km/h He and the sled were brought to a stop in 1.4s In g units what acceleration did he e xperiance while stopping? I know 1 g = 9.8m/s^2 I used a=(v-v0)/t and got 74.344 g Is this correct? Acceleration, or

    asked by sarah
  25. economics

    what are the three main types of resources used for making,selling,and using goods and services? a. soil,water,air b. money,barter,credit, c.gold,silver,bronze I would not go with any of your choices. We generally think of the three factors of production

    asked by yard ape
  26. math

    The roots of the equation x^4 - 3x^2 + 5x - 2 = 0 are a, b, c, d. By the relation y=x^2, or otherwise, show that a^2, b^2, c^2, d^2 are the roots of the equation y^4 - 6y^3 + 5y^2 - 13y + 4 = 0. The 2nd part of the question asks: find the value of s~2

    asked by jack
  27. Microeconomics

    You plan to go skiing next weekend. If you do, you’ll have to miss your usual weekend job that pays $100. You won’t be able to study for 8 hours and you won’t be able to use your prepaid college meal plan. The cost of your travel and accommodations

    asked by Jon
  28. rousseau

    hi rousseau's beleives that man is good by nature. do you disagree and agree? i said disagree because i beleive that man is a creature of thought and the concepts of good and evil will be regardless because people can twist others into thinking in ay way

    asked by Anonymous
  29. immunology

    in which organ of the body is having maximum regeneratin capacity skin has a lot of regeneration capacity.

    asked by satish
  30. maths

    convert the following fraction into equal denominator: 5 4 - - 6 5 thanks !!!!!!!!!!!!!!!!!!!!!!!!!!!!! I am not certain what you posted. Post it like this... a/z + b/k

    asked by sneha
  31. LANGUAGE ARTS

    A SHORT WAY OF WRITING A WORD CONSISTING OF SOME OF THE LETTERS IN THE WORD FOLLOWED BY A PERIOD. What is an abbreviation? http://www.onelook.com/ a short way of writing a word consisting of some of the letters in the word followed by a period.

    asked by SHORTY
  32. I need to fix this!

    Mosquitoes are the largest disseminated insects. They are found anywhere; they can be found on verandas, balconies steps, and many other places. They are at their best when behind bed curtains; this is where they delight at their successful conflicts.

    asked by Anonymous
  33. Kome Economics

    Why is the recommendation to eat more bread cereals and potatoes so significant to the health of the nation? I think the recommendation is to eat well balanced meals and to eat in modearation. The idea of more bread, cereals, and potatoes, I think, is that

    asked by Anonymous
  34. social studies

    What are the three main types of resources used for making, selling, and using goods and services? a. soil, water,air b. money, barter, credit c. natural, human, capital d. gold, silver, broze This is a double post.

    asked by alexis
  35. Ethics

    Drug use is kept private and employers have a right to know about it in some cases. What do you think? Do you agree with me or no? "Drug use is kept private and employers have a right to know about it in some cases." I'm not sure I understand what you're

    asked by John
  36. science

    At a construction site a pipe wrench struck the ground wiht a speed of 24 m/s. a) From what height was it inadvertently fropped? b) How long was it falling? for a) the book said it was 29.4m and for b) it was 2.4s but I keep on getting the wrong answers.

    asked by ben
  37. ????

    what is this suppose to mean? “The only difference between one that stands up good and one that blows over is what kind of stick they’re stuck up there on” Some are well supported from blowing over by sticks, and some are not. That is all that it

    asked by kris
  38. Math exponents

    Please explain how to get the prime factorization in exponent form as in example the number 24. What would be the exponent form? Thx, J The factors are 2 and 3. The prime factorization of 24 is (2^3)*3 We would say that 2 has order 3 and 3 has order 1.

    asked by Jillian
  39. math

    write two decimals that are equivilant to: 0.68 0.9 I think you mean two fractions because the decimal representation is unique (with some exceptions we'll skip for now) 0.68 = 68/100 = 34/50 = 17/25 0.9 = 90/100 = something you can do now

    asked by aalyssa
  40. math

    how many centimeters are there in: a decimeter: a meter: a hectometer: 10 100 10000 10 100 10000

    asked by alejandra
  41. math

    how many millimeters are there in: a meter: a decaameter: a kilometer: alejandra don't you have some kind of chart to work from? There should be something in your text telling you how to change prefixes somewhere. thats the problem i don't have one and i

    asked by alejandra
  42. math

    4.2 cm=___m 0.042

    asked by alejandra
  43. math

    how do solve equation? What equation?

    asked by sha
  44. Accounting?

    I need to post a journal entry and a trial balance. Can anyone help???

    asked by Dan
  45. further mathematics

    The roots of the eqn, x^4 + px^3 + qx^2 + rx + s = 0 where p, q, r, s are constants and s does not equal to 0, are a, b, c, d. (i) a^2 + b^2 + c^2 + d^2 = p^2 -2q (in terms of p & q) (ii) 1/a + 1/b + 1/c + 1/d = -r/s (in terms of r & s) (iii) using the

    asked by candice
  46. Film (Steamboat Bill, Jr.) - English

    How does Steamboat Bill, Jr. directed by Charles Reisner differ from contemporary films?

    asked by Betty
  47. math:roger plz check if im right

    how many decimeter are there in a meter: .1m a decameter: 10m a kilometer: 1000m Go back to your original post and read what I wrote. Then redo your table.

    asked by alejandra
  48. algebra

    7/11 - 2x < 3/10; {1/2, 1/3, 1/4, 1/5, 1/6} Rearrange the inequality to get add 2x to both sides 7/11 < 3/10 +2x subtract 3/10 from both sides 7/11 - 3/10 < 2x divide by both sides 2 (1/2)(7/11 - 3/10) < x Can you finish it out?

    asked by pezz
  49. science math

    how many decimeters are there in a decameter Go back to my post and count. Then post your answer here. You can check your answer at google but I will be happy to check it also. 100 decimeters. I'm sure of it! Decimeters

    asked by alejandra
  50. MATH

    how many milligrams are there in a kilogram I give up alejandra. I showed you how to count your way to the answer and you keep posting. We don't give answers but we try to help you understand so you don't need us. Please go back and count your way from

    asked by alejandra