Questions Asked on
March 31, 2007

  1. Genetics

    1. Why are we using more dilute cultures for the killing curve while we are using the arg selection culture at full strength? 2.How would you find the arg+ mutants on the killing curve plates? 3. when designing a protocol to produce auxotrophs for

    asked by Mae
  2. Emerald; World History

    What are some of the causes of the Crusades Check this site for the causes. http://encarta.msn.com/encyclopedia_761561210/Crusades.html This site will give help with that: http://www.middle-ages.org.uk/cause-of-crusades.htm

    asked by Juanita
  3. physics

    A pendulum clock can be approximated as a simple pendulum of length 1.20m and keeps accurate time at a location where G=9.83m/s2. In a location where g=9.73m/s2, what must be the new length of the pendulum, such that the clock continues to keep accurate

    asked by Cavin
  4. What Is Happening to my Posts?

    you have to ask a homework help question, not talk about korean foods, you cant just spam the forum Al, I was talking about botin-tang, a soup from my country; not 'spam.' I don't even eat spam... yuk :( im not talking about the food spam, spam is when you

    asked by Al
  5. Physics - Torque

    A particle is acted on by two torques about the origin: T1 has a magnitude of 4.3 N*m and is directed in the positive direction of the x axis, and T2 has a magnitude of 3.2 N*m and is directed in the negative direction of the y axis. What are the magnitude

    asked by COFFEE
  6. CHEMISTRY MOLALITY!!!!!

    A bottle of wine contains 13.1% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality. i don't know how to get molality. please help!!!! Molality is the

    asked by Anonymous
  7. science

    When was the idea of the atom first introduced? wasnt it around 450 B.C.. Some claim Demotricus introduced it, as the "atomos", but I am not certain on reading his works he understood it as the thing we know as the atom. The best dating we can do is that

    asked by pop
  8. chemistry

    calculate the empirical formula: 79.8%C and 20.2%H. what os the formula Take a 100 g sample. That will give you 79.8 g C 20.2 g H. convert g to mols. mols = g/molar mass. 79.8/12.01 = 6.64 20.2/1 = 20.2 This gives the formula of C6.64H20.2 However, we know

    asked by lauren
  9. Georgia

    I need help find a website on georgia. Thank you very much. You will find sites for maps, history, government and tourism at this: http://www.google.com/search?hl=en&ie=ISO-8859-1&q=Georgia&btnG=Google+Search

    asked by marry
  10. math help & correction

    Problem #1 Is this correct or wrong? Find the slope of the line passing through the points(-1, -1)and(-1, 2). Write the equation of the line. For this one I KEEP GETTING Y= - (3)/(2)x-2.5 Problem #2 Find the y-intecept and slope of 7x+9y=72 My answer:

    asked by jacky
  11. Geomatry

    Which Solid can be defined as the regular polyhedron (a solid with all faces identical regular polygons) with the greatest number of faces? Please help thank you http://en.wikipedia.org/wiki/Regular_polyhedra There are nine regular polyhedra. Choose the

    asked by Rocky
  12. Business

    I have to make a buisness. For example If i have open up Video game store just like gamestop. What can i put in my essay. Others may have additional ideas for you, but it sounds to me as if you need to write up a business plan, and then maybe write an

    asked by jack
  13. Chemistry

    Hw many minutes will it take a current of 31.559 Amperes to deposit 1.722 grams of aluminum? I believe it to be 6.505 minutes Is this correct? If not, I'll post my work. Thanks I found 9.757 minutes. Ok, here's my work, I just plugged in numbers to another

    asked by Jennifer
  14. Physics - Torque

    A particle is acted on by two torques about the origin: T1 has a magnitude of 4.3 N*m and is directed in the positive direction of the x axis, and T2 has a magnitude of 3.2 N*m and is directed in the negative direction of the y axis. What are the magnitude

    asked by COFFEE
  15. math help

    Problem #3 I have to graph y =4 therefore doesn't this run right on 4 going horizontal. Then it asks: List the y-intercepts coordinate and the slope of the graph? Therefore there is no slope and for the y-intercept I do not know what to do or say. Where

    asked by jakey
  16. Biology

    Can dogs eat cheese? Yes. http://dogs.about.com/od/dietandnutrition/f/pur_mmburger.htm

    asked by Jenna
  17. soccor

    Anybody know good web site to look up soccor. Here are a number of really good soccer sites: http://www.google.com/search?hl=en&ie=ISO-8859-1&q=soccer&btnG=Google+Search

    asked by jordan
  18. economics

    what happens to the united states economy when the gold standard was discontinued? Since this is not my area of expertise, I searched Google under the key words "gold standard economy discontinue" to get these possible sources:

    asked by lauren
  19. AP English/Psychology

    I will be taking high school AP English and Psychology exam next month. My psychology teacher does not return our tests. Can anyone give me any ideas/leads on how to best prepare for these exams? Thanks! This site may help you.

    asked by jules
  20. Grammar

    Is this sentence a subject verb agreement? Either the interviewer or the committee members usually begins by asking simple questions about your background. http://grammar.ccc.commnet.edu/grammar/sv_agr.htm Please see #5.

    asked by Tonya
  21. calculus

    The integral of 3x^2 - 4x + 1 equals x^3 - 2x^2 + x. Is this always correct? Where is the constant of interation? wouldn't x^3 - 2x^2 + x + 23 also be correct?

    asked by kelly
  22. math HARD

    What is the general formula for the factorial notation? Hmmmm. Hard? n!= 1*2*3*4*...*n-1*n I have been missing from school and we have just learned it. So I am not very good at it. There is quite a lot on Wikipedia /wiki/Factorial Which includes the

    asked by george
  23. Algebra 1

    How to factor 10k^2+35k+15 completely? I would start with the easy: factor five out. 5(5k^2 +7x +3) Now the three tells you that the factors are probably 3,1 and the five tells you that the factors are probably 5,1 5(5k+3)(k+1) wrong, wont work and

    asked by Montie
  24. math stuff

    suppose to arrage the names of the ppl in descending order of their share of oranges: Eddy's share of oranges is half the sum of dennis and carols share bob has more oranges then dennis the total share of anna and bob is equal to that of carol and dennis

    asked by jake p
  25. Alegebra 1B

    7x/16-x/16 When you have the same denominators (numbers on the bottom), you can just subtract the numerators (#s on the top) So 7x-x = 6x So the answer is 6x/16 Matt x-5+(-6)-6=0 x-5+(-6)-6=0 wa zup i think she is right i mean she is right

    asked by Scott
  26. english

    i need help to unscramble this word crydabu..can't figure this one out Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =)

    asked by Kristyn
  27. Art Question

    When children draw cross-sections of plants, they are: 1. intergrating science and art (Or) 2. intergrating mathematics and science Lordy. Surely you have some thinking on this, this question hardly stimulates the cerebral cortex. Did you mean integrating?

    asked by Kendra--Please Help!!
  28. spanish

    Which African country has Spanish as an official language? I don't know if it is correct but isnt it Equatorial Guinea. I am not sure That would be correct. You most have a diffrent spanish class. You bet. I eaven a have a weird school. Thank you for using

    asked by sally
  29. Geography

    How natural resources effect the econmy These articles will give you some interesting ideas: http://scholar.google.com/scholar?hl=en&ie=UTF-8&q=Natural+resources+effect+on+economy&spell=1 http://en.wikipedia.org/wiki/Resource_curse

    asked by candice sizemore
  30. Writing English Sentences

    Hello again, As part of my weekly assignment, I am required to write a short story in English using the vocabulary words we have learned this week. This week's assignment was very hard, because the words were strange and some of them are even rude. So I

    asked by Kung Li
  31. Teaching Music Question

    By asking students to "freeze" their bodies for a moment when the music pauses, a teacher can help children understand: 1.musical rests 2.harmony 3.melody 4.relaxation Wouldn't the correct answer be musical rests? I am thinking the correct answer could

    asked by Yolanda
  32. math

    I forgot how to change a decimal to a fraction. i need to change to a fraction the following -2.5 -2 and 5/10 or -25/10 = -5/2 thank you ...and i have to say duhhh to me.

    asked by jasmine20
  33. math, algebra

    the problem reads: Write the equation of the line which passes through the point (2,1) and is parallel to another line with equation y = (5)/(2) x + 6 the answer i get is the following is this correct though y = (5)/(2) x - 4 Since your new line is

    asked by jasmine20
  34. criminology

    can anyone give me some websites with arguments in favor of and against the just desert theory? Thank you for using the Jiskha Homework Help Forum. Here are some things online: 1. http://en.wikipedia.org/wiki/Justice (definition) 2.

    asked by kelly
  35. english help

    crydabu need help unscrambling the word ..hint has to be a word related to spring or easterwith spring or easter Thank you for using the Jiskha Homework Help Forum. If you are allowed 2 words, it could be "buy card." Other than that, list the vowels: a, u,

    asked by Kristyn
  36. grammar

    Her mind flew so quickly,she had so much to remember, that she forgot to stop at the light. Easy, it is spelt "grammar" Thank you for using the Jiskha Homework Help Forum. When you post please clarify as best you can what you want us to do! In addition to

    asked by Anonymous
  37. math,help

    What is the equation i have to use for the following question A roof rises 9.75 ft over a horizontal distance of 15.84ft. What is the slope of the roof to the nearest hundredth? Slope is given by slope=rise/run So what is the rise and what is the run?

    asked by jacky
  38. math,help

    I definately do not understand this problem. If y varies directly with x, and y = 600 when x = 1000, find the constant of variation K. If y is directonally (proportional) to x, then for every value of x there is a value for y multiplied by a constant

    asked by jacky
  39. Re: Physics (check)

    Posted by COFFEE on Friday, March 30, 2007 at 4:16am. A sanding disk with rotational inertia 1.1 x 10^-3 kg*m^2 is attached to an electric drill whose motor delivers a torque of 6 Nm about the central axis of the disk. What are the following values about

    asked by COFFEE
  40. Re: Physics

    Posted by COFFEE on Friday, March 30, 2007 at 4:25am. A 1.1 kg particle-like object moves in a plane with velocity components Vx = 30 m/s and Vy = 90 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m. (a) What is its angular

    asked by COFFEE
  41. ALGEBRA

    There is 117 grams (g) of acid in 900 g of a solution of acid and water. What percent of the solution is acid? 177/900=R/100 R*900=177*100 R=17,000/900 R=19.667 I WOULD ROUND THAT TO 20% SO R =20% AM I CORRECT IF NOT PLEASE EXPLAIN WHAT I DID WRONG Yes,

    asked by TOMMY
  42. science

    When was the idea of the atom first introduced? http://en.wikipedia.org/wiki/Atom#History_of_atomic_theory_and_discovery_of_atomic_structure Interesting...I never knew that until I read it.

    asked by pop
  43. chemistry

    help me predict the product sodium iodide-> You have only one reactant. Of course we could write sodium iodide ==> sodium iodide.

    asked by riley
  44. math

    2+2= 4

    asked by elizabeth
  45. chemistry

    What is thermal energy? heat energy

    asked by nikcile
  46. Research paper

    I have to write a paper about prison life on the norms and values for inmates and staff. and how do inmates meet their needs? Does it mean that inmates meet their needs by gambling and smuggling drugs in the prison? making their own alochol..sexual acts?

    asked by Amanda
  47. Math

    A glass is filled with water and the total weight is 220g. If the glass is halffilled with water, the total weight is 120g. What is the net weight of the glass? There may be a logic way of doing it but the following is the longer "math" way. G = weight of

    asked by Anonymous
  48. Math!!

    Sally deposited $3600 and the annual rate of interest is 6.5%. What is the interest amount for a 30-month period? I = prt. I = amt of interest p = principal r = rate (0.065 per year) t = time in years = 2.5 years I = 3600*0.065*2.5 = ??

    asked by Cindy
  49. sociology

    give an example of a human behavior that is considered deviant in one society but is not considered deviant to others. head shrinking Having hallucinations is another example. Some culture consider them communications from the spirits. Our culture

    asked by Anonymous
  50. Research

    I have to write a paper about prison life on the norms and values for inmates and staff. and how do inmates meet their needs? Does it mean that inmates meet their needs by gambling and smuggling drugs in the prison? making their own alochol..sexual acts?

    asked by Amanda