Questions Asked on
January 13, 2007

  1. physics- torque

    1. Find the magnitude of the torque produced by a 3.0 N force applied to a door at a perpendicular distance of 0.25 m from the hinge. 2. A simple pendulum consists of a 3.0 kg point mass hanging at the end of a 2.0 m long light string that is connected to

    asked by Anonymous
  2. Physics

    1. The efficiency of a squeaky pulley system is 73 percent. The pulleys are used to raise a mass to a certain height. What force is exerted on the machine if a rope is pulled 18.0 m in order to raise a 58 kg mass a height of 3.0 m? So to find the force

    asked by Anonymous
  3. Science

    Natural rubidium has an average mass of 85.4678 amu and is composed of isotopes 85Rb (mass = 84.9117 amu) and 87Rb. The ratio of the isotopes 85Rb/87Rb in natural rubidium is 2.591. What is the mass of 87Rb? Let x be the fraction of the Rb atoms that are

    asked by Gil
  4. Chemistry

    2. You have a sugar solution (solution A) with concentration x. You pour one-fourth of this solution into a beaker, and add an equivalent volume of water (solution B). a) What is the ratio of sugar in solutions A and B? b) Compare the volumes of soutions A

    asked by Jon
  5. Calculus

    How do I rewrite log4 1=0 as an equivalent exponential equation? How do I rewrite 4 to the -2 power = 1/16 as an equivalent logarithmic equation? Any help is greatly appreciated. If 4 is the BASE of the logarithm, then log (1) = 0 means ...4 4^0 = 1 4^(-2)

    asked by Abby M.
  6. british idioms

    are these idioms british? pig in a poke, back to basics, back to square one, to sling one's hook, a baker's dozen, gone for a burton and break one's duck i also have to make some tasks about them..can anyone give my an idea?should i make a quiz or

    asked by alli
  7. religion,help

    I have to also find the sacred text so this is what i have: for Hinduism = the vedas which are the rig veda, sama veda, yajuir veda, and atharva veda. for Confucianism= they were by the chu shi (1130-1200 CE) during the sung dynasty. which are the Si Shu

    asked by Kailin
  8. Weather

    what is 34f in celcius C= 5/9 (F-32) 32F is the freezing point of water, so 34F ought to be close to zero in C. Do the math.

    asked by Jaylen
  9. English

    Hi, I am analyzing poetry in my English class, and I have a? on Henry Wadsworth Longfellow’s poem, A Psalm of life. I have to say if it is emotional or physical. I think this poem is emotional, but I do not know how to explain that it is.

    asked by Larry
  10. math, help

    how do i write the equations so i can solve it i will do the solving but help me out with the equation please.for the following: Four pencils and five pens cost$2.00. THree pencils and four pens cost $1.58. Find the cost fo a pencil and the cost of a pen.

    asked by jasmine20
  11. HCl - Chem

    Assume you had a very magnified view of a solution of HCl that allowed you to "see" the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear and hydrogen gas would be released. Draw this out using symbols to

    asked by Gil
  12. Math

    What are the solution sets of the following 3 problems,the square root of x squared + 3x = x-3, the square root of 3x + 10 = x + 4 and finally the square root of 8x - 2 = the square root of 2x? Help much appriciated. I will one as an example. sqrt(3x + 10)

    asked by Joseph B.
  13. Chem

    Circle the letter of the unit of mass commonly used in chemistry that equals 1/1000 Kilogram. a)gram b)Milligram c)milliliter Kilo is 1000. What is 1/1000 of 1000?

    asked by Dennis
  14. biology

    Why must plants have both mitochondrion and chloroplasts? Thanks in advance. I think it has something to do with the fact that chloroplasts convert sunlight into chemical energy. Does that sound right? One of the most widely recognized and important

    asked by April
  15. International Business

    small companies typically have difficulty competing against large multinationals when their governments take part in regional trade blocs. What could governments do to help their small companies compete after the formation of such blocs? Thanks for any

    asked by Jo
  16. religion,help

    what is a good website where i can find the countries of origin for: hinduism buddhism confucianism daoism now one more question for right now. when they are asking for the country of origin do they refer to where did thAT NAME COME FROM? OR WHAT IS IT

    asked by Kailin
  17. Essay help

    I need to write an essay outline on "phishing." (Phishing is a form of identity theft where a scammer sends someone an email that appears to be from a legitamite organization and then tricks him/her into providing personal information like PIN numbers,

    asked by Lucy
  18. math

    Given: f(x)=log 5 x what is the value of f(125) and f(1/25)? Totally lost! I assume you mean f(x) = log (5x), not log 5 * x. If this is the case, then f(125) = log 600 and f(1/25) = log (1/5) If the base of the logs is 10, then log 600 = 2.778..

    asked by Hannah
  19. HIstoRy

    My question is what is really dictator,, dicatorship ,, Totalitarianism,, Communist didcatorship and Facism start here: http://www.onelook.com/

    asked by Help please :(
  20. early childhood question-plz help

    Mrs.Monroe,the crossing guard,is helping children cross the street. Spencer runs ahead of the group instead of waiting for the walk signal from Mrs. Monroe.Frantic,Mrs. Monroe yells at Spencer,"You are not paying attention today Spencer!" Which of the

    asked by Patty
  21. Chemistry (Check)

    Classify each of these statements as always true, sometimes true, or never true 11)sometimes true 12)Never True 11)Scientific notation is used to express large numbers in convenlent form. 12)Siginificant figures include all the digits that can be known

    asked by Bryan
  22. math,correction,help

    please can someone tell me where i am wrong. Directions: Translate to a system of equations and solve. Problem: Colored copies cost 10cents per copy and white copies cost 5cents per copy. Sandy made 400 copies, some of which were colored and the rest

    asked by jasmine20
  23. Please Help Very Urgent

    Hello, I am new to this website. I visited this website few times.I have some HEALTH questions.I am sick since 5 days.This is about my HEALTH.Please answer my questions if you know the answer to it! My problem is: I was chewing the BIG RED CINAMMON FLAVOR

    asked by Kaveri
  24. egg protection device

    Hi. I need to know how to make an egg protection device out of straws and duct tape. Thanks. Experiment! Experiment! Experiment!

    asked by Anonymous
  25. Math (correct answer?)

    I believe that the answer to the square root of x^2 + 3x = x-3 is X = 3, x=-3 but I'm not sure. I believe the answer to the square root of 8x -2 = the square root of 2x is x=2 again I'm not sure. why are you posting under several names? I like making up

    asked by Joseph B.
  26. religion, help

    what does it mean when they want the historical figures and events. Can you provide me with what should the answer consist of towards what they are looking for. so i can look for it. also for central believes does that mean they want their main believe not

    asked by Kailin
  27. math

    Show that if x is a nonzero column vector in R^n, then the nxn matrix: A = I - 2/||x||^2 * xx^T is orthogonal. Notation key: ||x|| = norm of x x^T = transpose of x I = identity matrix. Let me try to convince a math student to use "physics" notations that

    asked by mathstudent
  28. Climate Graphs

    I need a climate graph of Fredericton, New Brunswick, Canada present time, so about 2000-2006. I have looked everywhere for stats or graph. I also need an older on for comparision perhaps the 1990s. Where can I find these. :( This site has climate graphs

    asked by London
  29. math,algebra

    what is the difference and similarities if solving an equation with varibles in the equation if it had 1 or 2 or even 3 variables? Here is one: Money left in Wallet= money earned + money found - money lost - money spent. I don't understand? can you please

    asked by jasmine20
  30. biology - temp on enzymes

    I have a practice question and I need some help on it because I am rather confused! 'Investigation into the effect of temperature on enzyme activity' -Casein is an insoluble milk protein found in powdered milks -Casein forms a whits suspension which clears

    asked by kim
  31. phyiscs- rube goldberg machine

    Identify two types of simple machines that are included in a Rube Goldberg machine. Pick any simple machines: For example, wedge, and lever.

    asked by Anonymous
  32. Precalculus

    I'm studying for my precalc exam and have completed 42 practice problems. I have 3 I need to answer that I can't. Please help. What is the base of the function G(x) = log subscript b x if it's graph has points (16,4)? Using the properties of logarithms how

    asked by jackie18
  33. math retry 2

    8^x = 16^x+2, x+2 -2=0 8^x =16^x+2, 2 x 8 = 16 log sub 5 (2x+3)=2 2(7/2)+3=2 log sub 5 (2x+3)=2 log sub 5 =11 The first and second lines make no sense whatsoever. The last is even more confusing. Watch 8^x = 16^(x+2) 8^x = 8^2(x+2) x= 2x+4 solve for x. On

    asked by Sara L.
  34. physics

    I was wondering if this formula is dimensionally correct: v = Square root FX/m divided by mass v= m/s F= kgm/s^2 X = meters divided by mass (kg) v = root kgm * m s^2 ------ kg My half solution: m/s = root kgm^2 s^2 ------ root kg m/s = m/s root kg --- the

    asked by EinstNewtLieb
  35. pre-calculus

    What is the domain and range of log3 (1-x)? I will be happy to critique your thinking. To assist you, consider log (-4) log (0) log 25 Those are to the base 10, changing to another base just changes the numbers, not the function.

    asked by emma
  36. math,algebra

    what is a real-life situation that follwos a linear equation, withthe independent variables being years. What would the slope say about the future years. Wood growth in a forest vs time. Wood growth = m * time can you help me understand i don't get still

    asked by jasmine20
  37. French

    I just have a few questions ok: #1) How do you say "we ate" in French? I think it is nous mangons but that didn't look right so I want to be sure. #2)How do you say"we swam" in French? because I thnk it is nous nagons but that doesn't seem right either.

    asked by Aubrey
  38. Math

    I believe that the answer to the square root of x^2 + 3x = x-3 is X = 3, x=-3 but I'm not sure. I believe the answer to the square root of 8x -2 = the square root of 2x is x=2 again I'm not sure. Square both sides of your equation. It breaks down quite

    asked by Joseph B
  39. Econ

    A firm faces the following sales function: Q=5,000-10P+40A+PA-0.8A^2-0.5P^2 where Q is sales, P is price(dollars), and A is advertising expenditures (in hundreds of dollars). Calculate the price and advertising levels that maximize sales. I don't know what

    asked by Jack
  40. need help in math,

    Translate to a system of equations and solve using the addition method. The sum of two numbers is88. The difference is 22.Find the numbers? My answer: I started but i think that i am wrong. x + y = 88 y = -x +88 y = -1x + 88 now once i substituted x -1x +

    asked by jasmine20
  41. English

    I wanted to know if I had the right idea. In the poem “To My Dear and Loving Husband" by Anne Bradstreet the poem is emotional because she is expressing the love she has for her husband, and it is also physical because the metaphors she uses helps have

    asked by Larry
  42. math help

    what or how would i solve the following i don't need the answer i want to do it but how would i solve this. Water pressure (p) in the ocean is 2.3 tons per square inch at a depth (d) of 2miles and 3.45 tons per square inch at depth of 3 miles. How do i

    asked by jasmine20
  43. math trouble

    I have 2 problems I need help with using either substitution or elimination method what is the solution set of 3x -2y = -4 and 5x = 2y? Second, Given: log sub a 2 = .4, log sub a 3 = .5, log sub a 5 = .8 what is the value of log sub a .01? On the first, I

    asked by Anonymous
  44. confirm math answers

    I have 3 problems I need my answers confirmed for. The solution for log subscript 3 1/9 = x is the solution -1/2? Secondl, what is the solution for 9^2x = 3^x+6 does x=2? Lastley is the answer to 3 ^5x+2 = 81 does x= 2/5? Help sincerely appreciated! The

    asked by trish
  45. precalc

    I'm terrible at pre calc, could someone tell me if the solution set for log subscript 2 x + log sub 2 (x-1)=1 is the solution -1? Using either the elimination or substitution method is the solution set for 4x + y =11 and 2x -y = 7 is the answer (3, -1)?

    asked by eragon
  46. math retry

    Is the answer to log sub a 2 = .4, log sub a 3 = .5, log sub a 5 = .8 is it 2.9? Is the answer to log sub 5 (2x+3) = 2 is the correct answer 11? Is the solution to 8^x=16^x+2 is the solution 2? Are you guessing? Something is wrong. Let me see your work.

    asked by Sara L.
  47. work

    9^2x = 3^x+6 x+6-6=0 x+6 -6 you subtract 6 which is why I thought the answer was -6 since 0 wasn't right. 9^2x= 3^4x 3^4x= 3^(x+6) 4x = x + 6 solve for x. You need a tutor quickly.

    asked by trish
  48. Marketing Management

    Describe a product that entered the market over the past two to three years and succeeded. Why did it succeed? Describe a product or service that you saw (or experienced) fail over the past five years. What factors influenced the failure? How did the

    asked by zeta
  49. mole

    how do i find... howmany moles are in a specified mass mols = grams/molar mass

    asked by cory
  50. college application short response

    Thank you for anyone that helps me about my college application. (Thank you for your suggestions, Writeacher, I re-writed my paragraph.) In the space provided below, please describe which of these activities has had the most meaning for you, and why. I was

    asked by kate
  51. pre-calculus

    What is the base of the function F(x) = b to the power of x if the graph has points of (1/3, 2)and another off the subject one if g(x)= log 7 x what is g(1/49)? If F(x) = 2 when x = 1/3, and if the !@#$%^&ntio is of the form F(x) = b^x, then 2 = b^(1/3)

    asked by emma
  52. pre-calculus

    I posted a problem earlier and made a mistake the question is what is the domain and range of f(x)= log subscript 3 (1-x)? Sorry! The answer is the same. The domain and range will be the same as if it were log base 40.

    asked by emma
  53. Anne/English/2 Jan

    To Anne: I'm sure I missed your posting of Jan 2 because it was under ENGLISH! I just found it this morning by accident and posted an answer for you!

    asked by SraJMcGin
  54. college application short response

    I wish you could help me the short answer of my college application essay. Many thanks Question: Please briefly elaborate on one of your activities. I was elected as the President of the class of 2007 in high school. My job of being a President was to

    asked by kate
  55. religion,help

    what do they mean when they want the nature of god for hinduism,buddhism, confucianism, daoism. What are they asking for also when they want the ethics and morality. The nature of the gods in these religions are their major characteristics. You need to

    asked by kailin
  56. To:Bobpursley

    My face is not swollen. It is swollen inside my mouth. Please see a doctor as soon as possible. We are not doctors and cannot give you medical advice. You need to see a doctor in person to find out what is wrong.

    asked by Kaveri
  57. Calculus II

    Does anyone know of a very good website that can teach me to better understand the disk, washer, shell method to finding volume of irregular figures (solid of revolution)using of course, integration techniques (such as when to recognize integration with

    asked by EinstNewtLieb
  58. College Scholarships

    I plan on attending a college in the fall with a tution of $26,000, needless to say I cannot afford this and my parents are in no situation to assist. If anyone knows of any websites that have info/applications for scholarships I would be most greatful. I

    asked by Kellie
  59. math

    What is the domain and range of g(x) = (1/3) to the power of x? The domain is all real numbers (- infinity to infinity) The range is zero to infinity

    asked by mike
  60. SCIENCE HELP!!??

    HI I Like you to help me with my research on Attraction and repulsion of electrical charges If you would give me any links or websites and thank you alot thanx Check these sites. http://psych.hanover.edu/Krantz/neural/charge1anim.html

    asked by amy
  61. poetry

    can you reccommend 4 humourous poems by different poets http://pages.ripco.net/~mws/Poetry/24.html by Thomas Hardy http://www.silentwords.com/Humorous.html http://dir.yahoo.com/Arts/Humanities/Literature/Poetry/Poetic_Forms/Closed_Forms/Limericks/

    asked by pedro
  62. united nations

    Aphabetically, which nation is the first in the United Nations? http://www.un.org/Overview/unmember.html

    asked by Holly
  63. Chem

    What is a volume of 1 L also equal to? 1 liter = 1000 cubic centimeters It equals about 1.057 quarts

    asked by Dennis
  64. pre calculus

    I believe that the domain for f(x) = log subscript 3 (1-x) is x is a real number I think the range for the same equation is y > 1 . the domain of log (1-x) would be such that 1-x > 0 -x>-1 x < 1 whereas the range would be y is any real number Have you

    asked by emma
  65. math

    What is the value of f(125) and (1/25) if the equation is f(x)= log subscript 5 x? Don't have a Clue! look at the answer I gave emma in the post above this one

    asked by Hannah
  66. precalc

    If g(x = log subscript 7 x then what is the value of g(1/49)? I believe it's 1/2 but I'm not sure. no recall that log 1/49 (base7) = log 1 - log 49 = 0 - 2 =-2

    asked by emma
  67. precalc

    So if f(x) = log subscript 5 x then the value of 125 is -3 and the value of 1/25 is -2. Right?

    asked by Hannah
  68. biology(animal cell)

    i need to know what a vesicle of an animal cell is and it would be nice to have an anology for it (a comparison between the function but different things) http://www.newton.dep.anl.gov/askasci/zoo00/zoo00296.htm

    asked by gr8
  69. Math (verify answer)

    So if f(x) = log subscript 5 x then the value of 125 is -3 and the value of 1/25 is -2. Right? No, yes.

    asked by Hannah
  70. physics

    How does an increase in mass affect the magnitude of gravitational force? Force= mass*constant If mass increases, the force....

    asked by Anonymous
  71. Math Exam Tuesday

    My friend swears by your site so I thought I'd confirm some of my more difficult answers for my math practice exam. Is the solution set for 8^x = 16^ x+2 is it -2? Next is the solution set for log subscript 5 (2x + 3) = 2 is the answer 7/2? Lastly is the

    asked by Sara L.
  72. correct answer now?

    Is the solution for log sub 3 1/9 = x does x = -2? Is the answer for 9^2x = 3^x+6 is it 0? Yes, No

    asked by trish
  73. once more

    Is the answer to 9^2x = 3^x+6 is it -6? No. Let me see your work. 9^2x= 3^4x

    asked by trish
  74. math

    Thanks. I will.

    asked by Sara L.
  75. Chem

    A Kilogram was originally defined as the mass of ___________. The kilogram was originally defined as the mass of one litre of pure water at standard atmospheric pressure and at the temperature at which water has its maximum density (3.98 degrees Celsius).

    asked by Dennis
  76. math

    I am having problems with algeba I have to have this paper done before Tuesday can you help me post what you need help in.

    asked by Harold Taylor
  77. ms.sue,religion help

    I am very very very confused. okay can you please explain to me what these questions are that you think my teacher wants from the students.For the following: this is all about eastern religions: religions are hinduism,buddhism,confucianism,daoism i have to

    asked by kailin
  78. Thank you (bobpursley)! (no reply needed)

    No reply needed.

    asked by EinstNewtLieb
  79. Geometrical Formula Help

    Hi! Can anyone please send me a link or show me how to find a formula that will find any point between two other points? Thank you, your help is greatly appreciated :)

    asked by Lena
  80. French for Aubrey

    Sorry, for some reason it did NOT print. I'll try again!

    asked by SraJMcGin