Questions Asked on
April 6, 2007

  1. U.S. History

    What slowed down the United States entrance into World War one? European countries had been fighting wars off and on for many years. There was a strong feeling in the U.S. that we didn't want to be involved in Europe's wars. Germany was not a direct threat

    asked by Felicia
  2. Chemistry

    Magnesia (MgO) is used for fire brick, crucibles, and furnace linings because of its high melting point. It is produced by decomposing magnesite (MgCO3) at around 1200 oC. 1. Calculate the equilibrium pressure of CO2(g) (in atmospheres) above MgCO3(s) at

    asked by Kegahn
  3. college chemistry

    what theoretical yield of formaldehyde (in grams) is expected from the reaction of 44.3 g of methanol? (Assume that methanol is the limiting reactant.) Look at my response to a stoichiometric problem one question below by Kyle. Post any specific questions

    asked by Jaxson
  4. chemistry

    I have no idea how to solve this problem, please help me out.... thanks a) A liter of a solution saturated at 25degree with calcium oxalate, CaC2O4, is evaporated to dryness, giving a 0.0061gm residue of CaC2O4. calculate the concentrations of the ions,

    asked by wendy
  5. P.E

    Whats the point of physical education? This is an excellent article on the value of PE in school. http://www.ericdigests.org/1997-4/physical.htm I can think of several reasons right off the top of my head It teaches team work; it provides needed physical

    asked by Mike
  6. Chemistry

    Which is most polarized noble gas? 1-Krypton 2-Xenon 3-Helium 4-Neon. I think the one with the highest atomic number would be the most polarized one. Just a thought.

    asked by Candy
  7. English

    I need help in writing a general statement and transition statement to my essay. I have all the body paragraphs.. but not an intro and a conclusion. Please help. Thanks. My essay topic is a shakespearean tragedy is a story of human actions producing

    asked by Jari
  8. earh science

    earths early atmosphere formed during the archean era. Which gas was generally absent from the atmosphere at this time http://en.wikipedia.org/wiki/Earth's_atmosphere#Evolution_of_the_Earth.27s_atmosphere

    asked by jenno
  9. Physics, still don't get it!

    I'm sorry bobpursley I don't understand your response, please clarify. When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along

    asked by Mary
  10. Social Studies

    What info might included in a journal entry written by a midwife during the Middle Ages, including social class, clothing, housing, church affiliation etc. Also need some kind of physical evidence to submit. Thanks Thank you for using the Jiskha Homework

    asked by Mel
  11. Factoring

    Factor Completely: 3t^3 + 5t^2 - 12t first take out the t so you have: t(3t^2 + 5t - 12) you should be able to factor it easily from there-- what numbers multiply to get (12 x 3) 36 and add to get 5? 4 and 9. so, you will take 9 and 4 and replace it with

    asked by Adam
  12. Economics

    P=MR+$750 TC =2,500,000+500q+0.005Q^2 (squared) Mc =500+0.01Q Calculate profit maximizing level Calculate the company's optimal profit and optimal profit as a percentage of sales revenue Can anyone help here I am lost

    asked by Jeff
  13. chemistry

    elemental analysis indicates the simplest formula of an unknown is C2H4O. when 0.775g of the compound is dissolved in 50g of benzene(C6H6), the solution freezes at 5.06 degree C. what are the molecular weight and the molecular formula of the compound? the

    asked by kiki
  14. English - critic please..

    Shakespeare’s plays have enjoyed success for centuries – his tragedies in particular. King Lear is one of Shakespeare’s best known tragedies. The famous play contains many scenes with intense story lines and climaxes. Bradley’s definition, “A

    asked by Jari
  15. Organic chem lab

    Gas Chromatography Graph analysis -- How can I find the peak area of incompletely separted compounds. I am not in the lab right now. I can only use a ruler and a pencil no fancy instruments. Appreciate your help. Thanks. This is tricky without seeing the

    asked by nayeim
  16. algebra

    Driving down a mountain, Tom finds that he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. Here what I have -1800 divid it by 3.25*5280ft

    asked by Amanda
  17. Economics

    Profit Maximation question help P=MR+$750 TC =2500000+500q+0.00Q squared Mc =500+0.01Q Calculate profit maximizing level Calculate the company's optimal profit and optimal profit as a percentage of sales revenue Can anyone help here I am lost

    asked by Jeff
  18. Economics

    I thinks i got the problem right this time P=MR=$750 TC =2,500,000+500q+0.005Q^2 (squared) Mc =500+0.01Q Calculate profit maximizing level Calculate the company's optimal profit and optimal profit as a percentage of sales revenue Can anyone help here I am

    asked by Jeff
  19. reversible reaction

    A+B C+D You mix some of A and B in a closed container and the reaction begins. As time passes, what happens to the amounts of A & B? As time goes on, what will happen to the rate at which A & B turn into C + D? Was there any C & D present when the reaction

    asked by abby
  20. NSU, Finite Math

    Problem Solving:Using the Binomial Formula: P(x)=(nCx)pxqn-x A Dozen Eggs An egg distributor determines that the probability that any individual egg has a crack is .014. a)Write the binomial probability formula to determine the probability that exactly x

    asked by Trudy
  21. Art Question

    Can someone please help with this question? The Arts and Crafts Materials Institute's seal(AMCI)means that the product: 1. has been evaluated and is safe for physically or mentally handicapped children. 2. has been evaluated by a qualified toxicologist for

    asked by Chrissie
  22. Physics

    A vertical spring with a spring constant of 450 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 3.0 cm in bringing the

    asked by Mary
  23. math,algebra

    can someone help me out factor out this 0=16t^2-122t+180 i have so far this but the last one i am not sure 8(2t^2-14t + ?) you need to use the quadratic formula: -b(+or-)[sqrt(b^2-4ac)/2a] so you are saying that i don't have to factor it out any further i

    asked by jasmin20
  24. Science

    what is this overall process (crash, recovery, extinction, survivability, genetic weakness, etc.) called in nature? History of life Biography Biography is it right come on talk to me

    asked by Rindi
  25. Public Administration

    Does Jiskha have Public Administration or Organizational Behavior experts available? Or. is there an expert on public sector OB and public sector finance? Not exactly. The closest is one person has a Masters in Systems Management (UnivSouthernCal).

    asked by San
  26. Brain Research Question

    The brain is particularly efficient at creating neural pathways for language: before the age of ten (or) after the age of ten I'm thinking its before the age of ten since the neural pathways are formed in the early years. Language is another hint. You are

    asked by Hallie
  27. DrRuss/bobpursley/drwls please help!!!

    Can you please clarify your response to my post Wednesday April 4th at 8:53pm and 8:54pm. Thanks for all of your help!!! pleasde repost it. Yes, repost it. Go to it, copy, and paste it here. Thanks. A vertical spring with a spring constant of 450 N/m is

    asked by Mary
  28. Cultural Diversity

    I am supposed to write a small research paper identifying the linguistic, political, social, economic, religious and familial conventions and or status of 4 Hispanic groups living in the US. I have to write on Mexican Americans, Puerto Ricans and then pick

    asked by Christi
  29. organic chem easy question

    How many hydrogen do you have to replace to get each of these products from 1-chlorbutane products are : 1,1-dichlorobutane 1,2-dichlorobutane 1,3-dichlorobutane 1,4-dichlorobutane IT is easy. What is your thinking on it? 1,2-dichlorobutane

    asked by nayeim
  30. economics

    can some explain to me how the auto industry can determine that there is an inequality? i was looking the only thing i can figure out would be like the trade imbalance for export and imported cars is some thing else i need to look into

    asked by Amanda
  31. English

    Ironing out all the wrinkles, the pants looked much more presentable. Hmmmm. Did the pants do the ironing? Is this a misplaced modifier?

    asked by Casey
  32. English

    I've written the articles and created the advertisements. In addition to that, I have to create three addional creative pages for a trendy magazine from the 1920s. Unfortunately, I do not have a copy of a magazine of the time. Are there horoscopes in 1920s

    asked by Anonymous
  33. math, help

    i also need help in this: i am up to this part of a problem but i can not continue i have to simplify the following x = (-2 +/- sqrt 124)/(4) so i know that sqrt 124 = 2 sqrt 31 so now i am not sure if i do the following -2/4 + 2sqrt31 / 4 = -1/2 + ?

    asked by jasmin20
  34. personal finance

    Sue and Tom Wright are assistant professors at the local university. They each take home about $40,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike and Karen, are 13 and 11. Were either one to die, they estimate

    asked by ashley
  35. IB/AP

    Is IB, applicable for American citizens in high school? Thank you for using the Jiskha Homework Help Forum. Here are some sites to give you a better background on the IB Program: Here are some sites to give you more background on the IB Program: 1.

    asked by jules
  36. A Bad Day For Kung Li

    Please tell Kung Li what I must do to merit the use of this board again. I am very sorry if I have been dispruptive or rude. :( This is a very sad day of my life. Mr. Lance has banned me from forum without mercy, and has left me to roll about in my shame

    asked by Kung Li