# Questions Asked onOctober 30, 2006

1. ## Chemistry

You made 100.0 ml of a lead (II) nitrate solution for lab but forgot to cap it. The next lab session you noticed that there was only 80.0 ml left. In addition, you forgot the initial concentration of the solution. You decide to take 2.00 ml of the solution

2. ## Microeconomics

If a firm has a U-Shaped long-run average cost curve, a.) its fixed cost rises as output rises. b.) it must have increasing returns to scale at low levels or production and decreasing returns to scale at high levels of production. C.) it must have

3. ## Chem

This is the problem: In a 1-L beaker, 203 ml of 0.307 M ammonium chromate was mixed with 137 ml of 0.269 M chromium (III) nitrite to produce ammonium nitrite and chromium (III) chromate. Write the balanced chemical reaction occuring here. If the percent

4. ## physics

if the height of a playground slide is kept constant, will the length of the slide or the presence of bumps make any difference in the final speed of kids playing on it if a) the slide is frictionless b) the slide has kinetic friction? a) if the slide is

5. ## science

As a result of the law of conservation, during a chemical change the mass of the products is equal to the mass of the ? mass of the products = mass of the reactants.

6. ## geography

my 9 year old daughter is learning about the caribbean on what i don't know please could any one help with any info on the caribbean or latin america wikipedia should have some information. West Indies - Bahamas. Bermuda Triangle? Last but not least

7. ## BIO!!!

If huperzine A were present in synapses between motor neurons and muscles, it would The speculation centers around preventing the breakdown of acetylcholine

8. ## Math Physics

Two blocks of masses 40.0kg and 20.0kg are stacked on a table with the heavier block on top. The coefficient of static friction is 0.600 between the top and bottom blocks and 0.300 between the bottom block and the table. What is the required magnitude of a

9. ## math

gasoline consumption problem suppose that the gas tank of a car holds 12 gallons and that the car uses 1/ 20 of a gallon per mile .let x be the nuber of miles the car has gone since the tank was filled? car holds 12 gallons 1/20 gallon/mile 12*20 = 240

10. ## math

suppose that the gas tank of a car holds 12 gallons and that the car uses 1/ 20 of a gallon per mile .let x be the nuber of miles the car has gone since the tank was filled? (1/20x)= 12 so now get x by itslef! (1/20x)/ (1/20)= 12/(1/20) x= 240! yeah I am

11. ## science

I have to make a 3-d model of a hurricane. Does anyone have any suggestions for how I can do this? The materials to use, etc? an easy thing to use is cotton balls, pained dark. To get a good picture, use google images, or some other image gallery. the

12. ## Analogies

amendnent:constitution::________:letter An Amendment is an addition to a constitution. With word processors and e-mail, you may not have heard of an addition to a letter. A postscript (P.S.) is what we used to add to a handwritten or typed letter when we

13. ## ethical issues

Has anyone read case study "Foreign Assignment". After the meeting with Sara, Tom Fried emailed you. In the email, he explained the situation and asked your advice. In your email reply back to Tom, address the following: What obligations do you feel the

14. ## Biology - biotechnology Help please

Several thousand fish species are to be "bar coded" ( I presume they mean markers), it's part of a research campaign. A specific region of mitochondrial dna is being used by the research group which will not show much variation within species but between

15. ## Physics I think!

Equation of Time. I have read 2 explanations of the Equation of Time which seem to contradict each other. Today the Equation of Time is 16 minutes 15 seconds. I have seen it expressed as 16.15 F. The F means FAST meaning the sun is 16m 15s FAST. Another

16. ## Psychology Question

Which of the following situations involves a self-fulfilling prophecy? 1.Andy is hungry, so he makes himself a tuna fish sandwich. 2.Cheryl goes into her psychology exam convinced that she will fail, and she does. 3.Danielle is very smart, so her parents

17. ## physics

a moving object collides with an object initially at rest. is it possible for both objects to be at rest after the collision? can one of them be at rest after the collision? is it possible to have a collision in which all kinetic energy is lost? explain

18. ## school supplies

We just added a number of articles: http://www.jiskha.com/school_supplies This is one of my favorites: http://www.jiskha.com/school_supplies/staples.html Very nice!! =)

19. ## enviromental science

need an example to understand how topographical factors intensify air pollution and how they can help pollution? Since this is not my area of expertise, I searched Google under the key words "topography 'air pollution'" to get these possible sources:

20. ## Math

Give an example of a set of sports data that can be grphed and use to make a prediction? Scores for gymnastics. All sports can be graphed. Gymnastic's have scores such as 7.5, 8.7, 9.0, ect. Perhaps if your focus was on one athlete, you could record there

21. ## Grammar

Please help me recorrect these two sentences under the rule of puctuating sentences. Or atleast give me an idea of how are they suppost to sound. (1) When the garage door was closed. My answer:The day that i had forgotton my house key was when the garage

22. ## English

how can you tell is something is in an informal styles of narrative writing what website can i go to learn more english and that can help me with the homework?

23. ## Math

I need help with figuring out the equation 5(2x+3)-8x=7 5(2x+3)-8x=7 10x+15-8x=7 2x+15=7 2x=7-15 2x=-8 /2 /2 x= -4 uh -8/2=-16 yes?

24. ## the scarlet letter characters

Which characters in The Scarlet Letter are archetypal? Probably the main characters, but check the analyses of characters in these sites: http://www.sparknotes.com/lit http://http01.gradesaver.com/classicnotes/ =)

25. ## bio

If our tongue is only sensitive to sweet, sour, salt, and bitter tastes, how are we able to detect so many different flavors? http://faculty.washington.edu/chudler/tasty.html

26. ## science

the law of ? of energy states that energy can never be destroyed or created Law of conservation of energy.

27. ## math

only cube that is one less than a square. answer is from 1-31 actually, wouldn't any fraction's cube be less than its square? i.e.: (1/2)^3 = 1/8 (1/2)^2 = 1/4 1/8 < 1/4 julie the answer is from 1 to 31 not a fraction 8 its cubed root is 2 and 3 squared =

28. ## physics

a marble is dropped from the top of a skyscraper. Is the work done by earths gravitational force on the marble equal to, smaller than or larger them that done by the marbles gravitational force on earth? Why? newtons 3rd law: force on marble due to earths

29. ## Probability

I have this question that's bugging me and will be grateful if someone can show me the caliculations also so that I can do others on my own bat. "David Brain, CEO of ACME STAINELSS STEEL INC, has appointed you as an environmental consultant to assess the

30. ## Quotations and commas

It seems as though I have forgotten where to put commas when I'm listing and using quotations... Would it be... I see words that refer to “planning”, “listing”, and “outlining”, which are sequential related. OR I see words that refer to

31. ## project on glasses!

hey. does anybody have any suggestions on a good way to interestingly present a project on spectacles and their impact on the middle ages??? I think it would be a cool idea to bring in a pair of glasses and to show the very important people that wore them

32. ## math

I need help solving these equations -5s+3s-2s=48 6m=5m-2+m 5d=-2d-24 you need help or you want someone to solve them for you? ;) please solve : ) thanks okay well pretty much solve for s in the first question and m for the second question and d in the

33. ## Algebra

How can you factor? x^6+y^6 That expression cannot be factored further because the bases of the exponents are different. so it's prime...Thank you. Can you please help me with this one? 50x^2 - 2y^2 - 4yz - 2z^2 I tried doing it but I get very confused.

34. ## math

97x+1/4=4 okay well minus 4 from 1/4 wich gives you?? 97x= 15/4 now get x by itself by dividing 97 by 15/4 wow! 1). Subtract 1/4 from both sides 97x+1/4-1/4=4-1/4 97x=31/4 (3.75) 2). Devide both sides by 97 97x/97=3.75/97

35. ## bio

In an industrial accident, a sharp fragment of metal entered the head of a worker and lodged in the bony area where the vestibular branch of the auditory nerve leaves the ear. In order to evaluate what nerve damage had been done, doctors blindfolded the

36. ## math

(4-y^2)/(y-2) = y/2 (4-y^2)/(y-2) = y/2 4 - y^2 = (y*(y-2))/2 4 - y^2 = (y^2-2y)/2 8 - 2y^2 = y^2 - 2y 3y^2 - 2y - 8 = 0 (keep the above equation in mind) quadratic formula: (-b +/- sqrt(b^2 - 4ac))/2a now solve by plugging in the appropriate numbers and

37. ## Lang. Arts

am: wasn't ::can:___________ aminite:constitution::________:letter bazzar:market place::enigma:________ In your first analogy, you have two verbs; the second one is a negative contraction of the past tense of the verb. Think of it this way. I am here. I

38. ## physics

two people push in opposite directions on a block that sits atop a frictionless surface. The soles of their shoes are glued to the surface. if the block originally at rest moves to the right a distance of d. Describe qualitatively how much work is done by

39. ## Linear Programming

calculate the lower bound from min z= 4x1 + 2x2 2x1 - 3x2 => 4 x1 + 5x2 0

40. ## physics

explain how you can change the tension of a vibrating string. you can probably change the tension by keeping the rate of the vibration constant and shortening the length of the string.

41. ## english desperate

please help: are these compound or simple sentence the boat nosed up to the dock; our trip was finally over. several people listened, but nobody volunteered. shelia calls it a dragon fly; I call it a darning needle. THESE all seem like compund sentences -

42. ## Ethics

What is the difference between grouping and stereotyping? Stereotyping is a type of grouping that assumes that all members of the group have the defining characteristics. Stereotyping is related to prejudice.

43. ## social studies

ways to protect the konark monument Hasn't the mortar failed, and needs to be renewed? That is probably the most important item.

44. ## Microeconomics

Suppose Intel Inc. and other chip makers utilize a new techology for producing the flash memory chips used in digital music players. How would you Illustrate and Explaine the resulting effects on the Equilibrium price and quantity in the flash chip market

45. ## math

Can you please solve alogX=lnX Logy=log e * ln y will allow you to convert. X=I

46. ## Science

If one ignores air friction, the actual acceleration is a constant, 9.8m/s^2. Now if you are experimenting, and actually trying to measure it, you need a method of plotting distance fell versus time. I have done it with photography in the dark, with a

47. ## Grammar

Can someone please help me check these for me.And help me correct them the correct way. I'LL APPRECIATED YOUR HELP :) I have to rewrite the sentences under the grammar rule of "Punctuating Sentences" if they need no change i have to write no change. (1)

48. ## English

How do you site reference in APA format for a memo writing. http://www.indiana.edu/~wts/pamphlets/apa_style.shtml Good examples here -- scroll down. http://owl.english.purdue.edu/owl/resource/560/01/ Here, too. =)

49. ## Life Science

where is a good site, book,or encyclopedia that you know of and what is it called?I need to know so I can finish my poster of ocean intertidal zone biome.Plus its due in two days!!! you cam try w i k i p e d i a . c o m

50. ## English

Hey there, can someone help me translate this part of the text from Oedipus the King written by Sophocles? I need to translate it so other people can understand it. II. 1 Of a truth dark thoughts, yea dark and fell, the augur wise doth arouse in me, Who

51. ## Chemistry

How do you write the combination of: Na2CO3 AgNO3 (CO3 -2) and (Ag=1) Thanks! This is a double displacement reaction. silver carbonate and sodum nitrate form.

52. ## science

why does a egg lose weight after being in corn syrup overnight? Which way will fluid travel in osmosis? IS THERE ANY NEW PROECTS

53. ## biology

I need help figuring out how to balance scientific equations well what are the equations?

54. ## math

ratio in simplest form 400 centimeters to 1 meter 1 400:1 cm/m

55. ## bi

In an action potential, what ions are entering or leaving the cell during each of its phases.

56. ## physics

extrapolation is the process whereby we extend an established numerical relationship between two variables beyond the limits of our observed and recorded data. why extrapolation would not be useful and wise to use in force-elongation graph? In

57. ## math

97x+14=4 First, subtract 14 from both sides. Then, let us know if you get stuck.

58. ## science

The ability of a substance to be burned? combustible? Look the word up in a dictionary and see if that is what you are want. its flamability

59. ## science

When ? takes pace in an animal many chemical changes occur.

60. ## English

if you summarize some informations from quotes, how do you citing them? can I just cite like this???? summarizing sentence (name page#). In order to cite references correctly, be sure you have a parenthetical citation just like what you indicated PLUS a

61. ## science

if a change releases this, it is more than likely a chemical change? heat light and some others (including formation of a precipitate and the formation of a gas but these aren't formed in the sense of being released).

62. ## Math

How many feet in a yard? 3 feet in a yard Most yards deserve to include two dogs and therefore all yards should have 8 feet in them. lol!

63. ## math

suppose that the gas tank of a car holds 12 gallons and that the car uses 1/ 20 of a gallon per mile .let x be the nuber of miles the car has gone since the tank was filled? (1/20x)= 12 so now get x by itslef! (1/20x)/ (1/20)= 12/(1/20) x= 240! yeah I am

64. ## Math: Checkboard Squares

In the formula how do you know to divide by six?

65. ## Math

If X does not = Y, but X/Y + X = Y/X + X, what does 1/X + 1/Y equal? X/Y + X/1 = Y/X + X/1 X/1 cancels out X/Y = Y/X X^2 = Y^2 +/-X = +/-Y In effect, if X != Y, then: X = -Y or -X = Y So, 1/X + 1/Y = 0 sorrry, but I made a typo. x/y + x = Y/x + Y.

66. ## research

help me write an exposiyory math homework help me write an exposetory essay? http://www.geocities.com/fifth_grade_tpes/expository.html

67. ## physics

if a rocket engine delivers a constant thrust, does it deliver more power as the rocket speeds up force = mass*(acceleration) if the rocket accelerates, the force will increase wow,uh constant thrust means it is delivering constant power. the kenetic

68. ## Language arts

Help unscamble these letters pacres SPACER SCRAPE Parsec

69. ## modern world history

who was more of an absolute monarch Tvan the Great or Peter the Great? Tvan the great

70. ## Essay Revisions

I've made the suggest revisions, as well as change and added somethings. Could you please check if I have fragments, pronoun agreements, run ons, and if I restated my thesis in my conclusion. Thanks! How Much Is Too Much?

71. ## physics

explain how you can change the length of a vibrating string.