# Questions Asked onNovember 26, 2006

1. ## physics

A navy jet with a weight of 231 kN requires an airspeed of 85 m/s for liftoff. The engine develops a maximum force of 107 kN, but that is insufficient for reaching takeoff speed in the 90 m runway available on an aircraft carrier. What minimum force

2. ## Chemistry URGENT

Could someone write out the total ionic equation and the net ionic equation for: 2Na3PO4 (aq) + 3CuSO4 • 5H2O (aq) → Cu3 (PO4)2 (s) + 3Na3SO4 (aq) + 15H2O (l) Cu++ + PO4--- >>> Cu3 (PO4)2 (s) Of course, it needs to be balanced.

3. ## philosophy

Q: Who claimed that our subjection to pain and pleasure should be the foundation for our laws? a. Simone de Beauvoir b. Kant c. Jeremy Bentham d. Peter Singer e. Aristippus I think it is C, but i am not sure about E... or possibly the other ones. Thank u!

4. ## Economics

Willy's widgets, a monopoly, faces the following demand schedule (sales of widgets per month): Price \$20 30 40 50 60 70 80 90 100 Quantity 40 35 30 25 20 15 10 5 0 Calculate marginal revenue over each interval in the schedule (for example, between Q = 40

5. ## chemistry

When 1.0 mol of ammonia gas in injected into a o.50L flask, the following reaction proceeds to equilibrium. 2NH3 N2 (g) + 3H2 (g) At equilibrium, 0.30 mol of hydrogen gas is present. a) calculate the equilibrium concentrations of N2 and Nh3. b) what is the

6. ## tigonometry

expres the following as sums and differences of sines or cosines cos8t * sin2t sin(a+b) = sin(a)cos(b) + cos(a)sin(b) replacing by by -b and using that cos(-b)= cos(b) sin(-b)= -sin(b) gives: sin(a-b) = sin(a)cos(b) - cos(a)sin(b) Add the two equations:

7. ## math

Find the value of each variable in the parallelogram. m

8. ## math

If two parallelograms are similar,what do you know about the ratios of the two side lengths within one parallelogram and the ratios of the corresponding side lengths in the other parallelogram? the aswer is the scale factor is the ratios would be the side

9. ## anatomy/brain

Of cerebrum, cerebellum, brain stem, or limbic system, where does most of the brain's activity occur. I BELIEVE IT IS THE CEREBRUM OF INFORMATION READ FROM MY TEXTBOOK AND A FEW ONLINE HELP SITES BUT AM NOT SURE. Since it is the connecting portion between

10. ## trig

Reduce the following to the sine or cosine of one angle: (i) sin145*cos75 - cos145*sin75 (ii) cos35*cos15 - sin35*sin15 Use the formulae: sin(a+b)= sin(a) cos(b) + cos(a)sin(b) and cos(a+b)= cos(a)cos(b) - sin(a)sin)(b) (1)The quantity = sin(145-75) = sin

11. ## Economic

How is income distribution affected in monopolies? The market for fertilizer is perfectly competitive. Firms in the market are producing output, but they are currently making economic losses. a. How does the price of fertilizer compare to the average total

12. ## physics

Imagine a landing carft approaching the surface of Callisto, one of Jupiture's moons. If the engine provides an upward force (thrust) of 3260 N, the craft descends at constant speed; if the engine provides only 2200 N the craft accelerates downward at .39

13. ## chemistry

A hydrate of strontium choloride contains 40.54% water. What is the formula of the hydrate ? SrCl2*xH2O. H2O = 40.54% SrCl2 = 100 - 40.54 = 59.46% Take 100 g sample. This gives us 59.46g SrCl2 and 40.54g H2O. Convert to mols. mols SrCl2 = 59.46/158.5 =

14. ## philosophy

Q: According to Sartre, what makes us uniquely free? a. the capacity for freedom instilled in us by nature b. ability to imagine a multitude of future paths and choices c. the existential hum d. essentialism e. democracy I don't think its E. I am leaning

15. ## philosophy

Q: which of the following statements indicate a belief in some universal moral truths? a. terrorist activities that take innocent lives are morally indefensible b. the genocidal actions of Hitler and Milosevec were morally reprehensible c. cultures that

16. ## economics

Willy’s widgets, a monopoly, faces the following demand schedule (sales of widgets per month): Price

17. ## lively

Suppose that four times the square of a number equals 20 times that number. Whatis the number? It'll take you 45 seconds if you just plug in a few numbers Again -- putting the subject in the subject line helps. =) 4 n^2 = 20n zero is one solution. Solve

18. ## ms.writeacher,english

I'm suppost to write a job-application letter to a company of interest attaching the resume. My question for this is on the job application letter on the heading i'm suppost to omitt my address and on the resume as well. And also what type of format am i

19. ## math

Find the diameter of the circle(not drawn to scale). BC=13,and DC=19. Round your answer to the nearest tenth. Onc again, without the figure in question, or an accurate description of it, we cannot help you.

20. ## physics

An interstellar ship has a mass of 1.20 X10^6 kg and is initially at rest relative to a star system. a) what constant acceleration is needed to ring the ship up to a speed of .10c (where c is the speed of light, 3.0X10^8 m/s) relative to the star system in

21. ## english

I am typing up an assignment for English and the title is: Satire in The Adventures of Huckleberry Finn. The whole title is going to be underlined, but do I need to put quote marks around The Adventures of Huckleberry Finn since it is a title? Just

22. ## Geometry

If two parallel lines are cut by a transversal then the bisectors of a pair of corresponding angles are? also parallel ask your teacher that's what the're there for

23. ## geography

what is phyiscal region? What is a physical region? A physical region is an area that shares a similar type of landform or physical characteristic. In South Asia, we find three physical regions: The Himalaya Mountains The Indo-Gangetic Plain The Deccan

24. ## Chemistry

It took 109.8 years for a 300.0 mg sample of an unknown radioactive material to completely disintegrate. Calculate the mass of the element (in grams/mole) assuming that the disintegrations per second are constant over the life-time of the sample, and the

25. ## Question

do I have to post my essay if I want it proodread? is there any other way--- because I don't wish others to read my essay.... There is no other way here. M we do essays all day long other students are interested in their own answers. don't worry.

26. ## College Essay

I edited it from your suggestions is there anything else I could change or add? The smell of exhaust from multiple cars combined with dirt and dust fluttering in the air is my lasting impression of Canton, China. The vivid image frequently reminds me of

27. ## AP US History

How did the Charles River Bridge v. Warren Bridge decision affect the accesss to corporate charters prevalent in Jefferson's time? http://college.hmco.com/history/us/resources/students/primary/bridge.htm

28. ## chemistry

Find the quantum value of a 5py orbital. I know the quantum numbers (n,l,m,s) and all that, but I'm not sure where to begin or go after that. Answered below.

29. ## Economics

Problem 2: You are a rock concert producer planning a rock concert. The demand schedule for tickets is P = 75 -0.005X where X is the number of people attending the concert. The marginal revenue function is MR = 75-0.01X. The fixed cost of putting on the

30. ## ECONOMICS

Willy’s widgets, a monopoly, faces the following demand schedule (sales of widgets per month): Price

31. ## to kill a mockingbird

how do the people of maycomb seal and oral contract? I belive they spit in thier palms and then "Shook on it" with a very enthusiastic clap as thier hands met, gripping tightly and shaking once. Please review the story to verivfy.

32. ## Computer -- I don't understand the assignment

THREE CRITICALLY IMPORTANT QUESTIONS REGARDING------- "computer crimes, hackers, crackers, and ethics: how is computing and information-technology crime different or not different from "normal" crime?" ----------------------------- so basically my

33. ## Economics

TFC = \$1,000 MC = \$1 (and constant) 2.Assume that all households have the same demand schedule which is given by the following relationship: P = 10 – 2Q. If there are 400 households in the market, state what the market demand schedule and marginal

34. ## College Essay

Are there any grammar errors or any other errors I should fix? And is there anything I should edit? Also are my paragraphs organized correctly? The smell of exhaust combined with dirt and dust fluttering in the air from multiple cars is my first encounter

35. ## physics

A glider of mass m1 = 10.0 kg initially moving towards the right at a speed of v1i = 2.00 m/s on a frictionless airtrack collides with a spring attached to a second glider of mass m2 = 4.0 kg initially moving toward the left with a speed of v2i = 5.00 m/s.

36. ## writeacher, english

for a job application letter . the format for my information where my name goes on top my address should be ommitted and just keep the email address etc. And attach the resume. please help I still seem not to see the the templates. What is the difference

37. ## math

Find the measure of each variable if m

38. ## history

How should I attempt to start a reasearch paper on the WPA? Which WPA are you talking about? Western Psychological Association? What aspects are you trying to explore in the WPA? You first need to determine what specific topic you want to explore. I

39. ## Math

Describe at least two ways of finding a missing side length in a pair of similar figures. This depends on what type of figure it is and what type of data you already have. Can you be more specific? Please repost with more data. Thanks for asking.

40. ## Chemistry

How much a 2.00 g 239 Pu would have decayed after 1.6 x 10^4 years? The half-life for 239 Pu is 2.4 x 10^4 years. amount remaining= originalamount*(.5)^(1.6/2.4) amount decayed = original - amountremaining

41. ## middle schol paper

what does the word undergraduate mean A student at a college or university who has not taken a first, or especially a bachelors degree

42. ## Science

I asked about this earlier and got an answer that caused me to rethink my process. Is this a good way to measure iron corrosion: weigh a nail, put it in water and let it rust, remove the rust (in my experiment the rust has come off easily, with just a

43. ## action potentials

this is in regards to action potentials. they do not affect the membrane potential of neurons. they increase in magnitude as they travel along an axon. they can be measured by using electodes. there is a loss in signal as they travel along an axon. just

44. ## music

the questions are based on the movie called Marsalis on Music Sousa to Satchmo 1)________ is accenting on unexpected beats. 2)what are three major sections of a wind band 1. syncopation is accenting on unexpected beats. 2. woodwind, brasswind and

45. ## philosophy

Q: Who claimed that our subjection to pain and pleasure should be the foundation for our laws? a. Simone de Beauvoir b. Kant c. Jeremy Bentham d. Peter Singer e. Aristippus I think it is C, but i am not sure about E... or possibly the other ones. Thank u!

46. ## trig

Show that 1-cos2A/Cos^2*A = tan^2*A 1-cos2A/Cos^2*A = [Cos^2(A) - Cos(2A)]/Cos^2(A). Substitute: Cos(2A) = 2Cos^2(A) - 1: [1 - Cos^2(A)]/Cos^2(A)= Sin^2(A)/Cos^2(A) = tan^2(A)

47. ## algebra

solve 4^-x=64 Please help -x log 4 = log 64 -x = log 64/log 4 = 3 x = -3

48. ## math

Solve for x in the figure if AB=5x-5 and BC=2x+3. You need to provide additional information on how AB is related to BC before we can help you with that question. Perhaps that is what the missing figure is supposed to show.

49. ## philosophy

Q: Which of the following are considered purposes for a moral theory? a. subjective satisfaction b. provide pleasure c. cause pain d. all of the above e. none of the above I have ruled out A and C, which also rule out D, but i am not sure about of the

50. ## ion concentration

Which of the following is responsible for maintaining the difference in ion concentration across the membrane of a nerve cell? here are choices the sodium-potassium pump the action potential the depolarization of the membrane the ion channels in the

51. ## schwann cells

are they found in central nervous system are they found in peripheral nervous system do they form a myelin sheath do they increase the speed of propagation of nervous impulses Thank you for using the Jiskha Homework Help Forum. Here is a site with the

52. ## Math HELP!!!

If two parallelograms are similar,what do you know about the ratios of the two side lengths within one parallelogram and the ratios of the corresponding side lengths in the other parallelogram? The ratios would be the same in similar parallelograms.

53. ## math

what is the rule for using diameter to find circumference? If the diameter is 2* the length of the radius then d/2 then C=2pie+r. CATCH YOU ON THE FLIP SIDE

54. ## Math, rational inequalities

Please can someone help me solve this problem? 2/x + 6/x-1 less than or = -5 8/x -1 = -4x Divide both sides by 4 2 >= -x Multiply both sides by -1 -2

55. ## philosophy

Q: Sartre says that we are ______________ if we blame our nature or behavior on history, genetics, environment, or other people. a. being reasonable b. revealing a self-destructive impulse c. acting in an authentic manner d. acting in bad faith e. fighting

56. ## music

Jazz and ragtime 3)______________ can occur between 2 instruments and can take place at any time Thanks Jazz can be done with 1 instrument, and is all the time. Ragtime requires two to interact, playing off one another.

57. ## Maths

solve the equation: 4cos2*theta + 3cos*theta + 3 = 0 for values between 0 and 180 degrees If that is cosine squared in the first term, you have a quadratic equation. Normally cosine squared would be written in ASCII as cos^2 Theta.

58. ## Taylor seires

f(x) =ln (1-x) a) Compute f'(x), f''(x), f'''(x). Spot the pattern and give an expression for f ^(n) (x) [the n-th derivative of f(x)] b) Compute the MacLaurin series of f(x) (i.e. the Taylor series of f(x) around x=0) c) Compute the radius of convergence

59. ## SOCIAL STUDIES

What are the three forces that change the shape of the land and what are the effects do they have on the earth? http://en.wikipedia.org/wiki/Erosion

60. ## reflex

Which of the following is not an example of an occurrence that might spur a reflex action? heat choking walking fear if i could pick one, it would be walking because heat causes you to have a reflex and pull away and choking causes a reaction as well, as

61. ## History

I need to know Howards University endowments. This site is an article on the endowments at Howard.

62. ## Chemistry

I'm supposed to find the quantum numbers for a 5py orbital. I'm not sure how to do this, can anyone help? N=5 l = 4 3 2 1 0, for p you want l = 1 ml= -1 0 +1 representing px, py, and pz orbitals. ms= +1/2 and -1/2. Look at a diagram in your book for the

63. ## lively

Suppose that the width of a certain rectangle is three-fourths of its length, and the area of that same rectangle is 108 square meters. Find the length and the width of the rectangle If you put the correct subject in the subject line, you're likely to get

64. ## Science

What does an Electromagnetic wave transfer into?? It can transfer to heat, electical power, mechanical power, or light.

65. ## satire

How is this satire? “Here she was a-bothering about Moses, which was no kin to her, and no use to anybody, being gone, you see...” the sentance seems more ironic than satirical

66. ## algebra

solve 4^3x-4=32^x+2 Please help! Do you mean 4^(3x) -4 = 32^x +2 ? yes If that is really what you mean, I cannot get a closed-form solution for you. You would have to solve it by trial-and-error or graphical means. If, on the other hand, you mean

67. ## math

The measures of two sides of a triangle are 9 and 15. Use an inequality to express the range of the measure of the third side,m.

68. ## computer

THREE CRITICALLY IMPORTANT QUESTIONS REGARDING------- "computer crimes, hackers, crackers, and ethics: how is computing and information-technology crime different or not different from "normal" crime?" Computer crime can be committed from sites extremely

69. ## history to psyDag

I'm talking about the workers project administration and I think I will be studying who or how many workers built buildings. I also want to know where they were built. Thanks, Mak This site will give you statistics and general information on the WPA.

70. ## Writing,English

What is the difference between summiting a hard copy resume and an online resume? Where can I view example of both. How does a job-application letter to a company look like? http://owl.english.purdue.edu/handouts/pw/index.html At this website, you'll find

71. ## Science

What are 3 reasons why salad dressing is a chemical suspension? Some of the liquid ingredients don't dissove in one another. That is why the dressing has to be shaken to blend together Some of the ingredients are solid spices or bits of cheese that do not

72. ## Chemistry

Which sublevel begins to fill with transition elements? I don't think my guess is worthy of being posted Transition elements are in the d level.

If m

74. ## Children's Reading and Writing Habits

Research findings have shown that: A. reading and writing skills develop at the same time. B. children begin the process of literacy once they have learned to read short sentences. C. literacy is properly limited to reading and writing. D. children's

75. ## history

Can you help me find information or perhaps give some on Nazi propaganda and its influences on third reich children I put your phrasing (Nazi propaganda and its influences on third reich children) into the search box at www.google.com and here are the

76. ## Math

If two triangles are similar,what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle?

77. ## MUSIC

3)_________ CAN OCCUR BETWEEN TWO INSTRUMENTS AND CAN TAKE PLACE AT ANY TIME. 4)A ___________ IS A REPEATED PHRASE. 4. coda is a repeated phrase, There is not enough information in #3 to help you. I would need to know the context. I think it might be

78. ## story

I have to do a report at school about how the movie Tom Sawyer and the book are different but I cant seem to remember toms little brothers name has anyone read the book and know? Thanks post back http://www.sparknotes.com/lit/tomsawyer/characters.html =)

79. ## drwls, math

Did you mean the following for the problem: 10) perform the indicated operations 3 and 3/4 (divided by ) 1 and 3/8 . 3 3/4 - 1 3/8 . 15/4 (divided by ) 11/8= 30/11 =(after rounding it should be 2.73) that's how it suppost to be and look Yes, that is what I

what does product diversification mean? Look at General Electric, they have a tremendously diverse product output. Not producing only one product, but many different products, e.g. conglomerate.

81. ## Math/Physics

crain carries concrete = 610kg distance carried vertically = 91m time carried = 90 seconds What is the kilo watt? I'm not sure which formulas to use... anyone know the answers? Power = (Work done)/(time required) The work done is M g H = 610x9.8x91 =

82. ## history

does anyone know of a worker of the WPA in the morris or surrounding areas. If so post. Thank you for using the Jiskha Homework Help Forum again. Do you mean Morris, Ill? It is always helpful to clearly describe what you need. The following site is where

83. ## music

What types of music did wind bands play ? Marches,church themes is only i can think of Wind ensambles have a huge repatuar in Classical music

84. ## russian revolution

What qualities was Leon Trostky known for? http://en.wikipedia.org/wiki/Leon_Trotsky

85. ## russian revolution

In 1923, who did Trotsky begin to oppose? What were some of the consequences? http://en.wikipedia.org/wiki/Leon_Trotsky