Questions Asked on
March 4, 2010

  1. math

    is there a formula for an INFINITE ARITHMETIC series/sequence? i know its not s = a / 1-r.. that's for geometric.

    asked by CL
  2. physics

    Water flows over Victoria Falls, which is 128 m high, at a rate of 1.4 x 106 kg/s. If half the potential energy of this water were converted into electric energy, how much electric power would be produced by these falls?

    asked by katie
  3. Organic chem.

    I need to find examples of reagents used in performing chemical resolutions of acidic, basic, and neutral racemic compounds. I have searched all over the internet and cannot find anything... please help.

    asked by Chelsea
  4. cultural diversity

    this is a group with distinct national origins or cultural patterns

    asked by renee
  5. chemistry

    calculate the volume of 0.1M NaOH which must be added to 50 mL of 0.1M HCl to give a final solution of pH 6???

    asked by sara
  6. physics

    You are designing a game for small children and want to see if the ball’s maximum speed is sufficient to require the use of goggles. In your game, a 15.0-g ball is to be shot from a spring gun whose spring has a force constant of 600 N/m. The spring will

    asked by bill
  7. chemistry

    how many calories are needed to vaporize 60g of ethly alcohol liquid at its boiling point of 78.4 degress celcius

    asked by geo
  8. physics

    A T-bar tow is planned in a new ski area. At any one time, it will be required, to pull a maximum of 80 skiers up a 600-m slope inclined at 15 degrees above the horizontal at a speed of 2.5 m/s. The coefficient of kinetic friction between the skiers skis

    asked by bill
  9. Finance

    If a person makes $30,000 in 2004 and the inflation rate is 4% annually, how much is this salary worth in the year 2008 (in terms of 2004 dollars)?

    asked by Tyga
  10. 7th grade

    I need general info on the Versailles Palace in France. I can't seem to find any sites that are easy to understand.

    asked by tyra
  11. Chemistry

    You will titrate your weak acid unknowns with a solution of NaOH of about 0.10 mol/L. The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What are the smallest

    asked by LU
  12. Chemistry

    You will titrate your weak acid unknowns with a solution of NaOH of about 0.10 mol/L. The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What are the smallest

    asked by LU
  13. calculus

    There are four integrals: 1) definite integral x/(1+x^4)dx b/w 0_infinity 2) definite integral (x^2)/(1+x^4)dx b/w 0_infinity 3) definite integral (x^3)/(1+x^4)dx b/w 0_infinity 4) definite integral (x^4)/(1+x^4)dx b/w 0_infinity Which of these integrals

    asked by Carmen
  14. 6th grade

    origins of eastern orthodox church

    asked by Anonymous
  15. Chemistry

    Can someone please check my work? Which of the four factors affecting reaction rate is most important in each exampel below? Choose from among concentration, temperature, surface area, and catalyst. a. Extra dish soap is added to help cut the grease when

    asked by John
  16. Time Zones

    Check my work. Calculate the correct time in brackets: 1. 1:00am at 30W = (11:00pm) at 60W 2. 3:00pm at 15W = (1:00pm) at 45W 3. 1:00pm at 120E = (9:00am) at 60E 4. 12:00pm at 15E = (6:00pm) at 105E 5. 11:00am at 15E = (9:00am) at 15W Calculate the correct

    asked by Kelly
  17. math

    if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.

    asked by maya
  18. math

    if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.

    asked by maya
  19. english

    I am trying to find out how many copies of the novel "Brave New World" by Aldous Huxley have been sold worldwide or even in Australia. I can't find the statistics anywhere. Can someone please help??

    asked by Nat
  20. math

    i'm supposed to come up with different questions for 11-12 year olds, 13-14 year olds, and 17 year olds. the topic is the triangular number sequence. any ideas for them?

    asked by alex
  21. Physics

    I don't know how to approach this question... Any dielectric material other than vacuum has a maximum electric field that can be produced in the dielectric material before it physically or chemically breaks down and begins to conduct. This maximum electric

    asked by Sandra
  22. Physics

    A simplified model for an erythrocyte is a spherical capacitor with a positive inner surface of area A and a membrane of thickness b. Use potential difference of 94 mV across the membrane and a dielectric constant K = 5.0. If the capacitance of the

    asked by Sandra
  23. social studies

    Describe how the strong united states action taken in grenada was an attempt to redress an earlier American policy failure in cuba.Be sure to include relevant historical details?

    asked by Jessica
  24. English

    1. Sweetheart, did you apply the cosmetics/lotion on your face? 2. Sweetheart, did you wear the cosmetics/lotion on your face? 3. Sweetheart, did you put the cosmetics/lotion on your face? (What about the expressions? Are all expressions grammatical? Do we

    asked by rfvv
  25. Chemistry

    A 355.0 mL cylinder containing SO3 at a pressure of 0.700 atm is connected by a valve to 0.559 L cylinder containing COCl2 at 380.0 torr pressure. Calculate the partial pressure (atm) of SO3 when the valve is opened. Unit conversion K = C + 273 1 atm = 760

    asked by Luc
  26. Chemistry

    A gas sample containing only SO3, CH2O and C2H6O2 has the following mass percent composition: 65.1% SO3 and 8.79% CH2O. Calculate the partial pressure (torr) of SO3 if the total pressure of the sample is 4712 torr. Unit conversion K = C + 273 1 atm = 760

    asked by Luc
  27. Algebra

    "Write a brief scenario that can be modeled with a linear equation. Summarize a situation modeled by a quadratic equation." Although I understand the difference between the two, I'm having a hard time creating problems that express them.

    asked by Nicole
  28. Business Information Software

    I know what the phases of SDCL (software development life cycles) are: Systems investigation; Systems analysis; Systems design; Programming; Testing; Implementation; Operations; and Maintenance. But I am confused just who participates in each SDLC phases.

    asked by AMW
  29. Physics

    Can the following equation be used to solve the question? R = ρ L / A ; find L.. or is there another way? Question: A rectangular piece of gold is 2.2 cm long and 2.4 cm wide. How deep is the piece when it displays a resistance of R = 1.06 μω for a

    asked by Sandra
  30. Probabability

    You walk into a classroom containing 20 other people. What is the probability that at least one of the other people has the same birthday (month and day) as you?

    asked by Sue
  31. Probabability

    You are in charge of quality control on a line which fills bottles of soda. The desired gross weight for a 2 liter bottle of soda is 2,160 grams. At the end of each shift you select 12 bottles at random and weigh them. After one month, the overall average

    asked by Jon
  32. Probabability

    You are given monthly annualized total return data for two mutual funds, A and B. Using linear regression, develop a relationship which gives the annualized return of fund B as a function of the return of fund A. What is the coefficient of determination of

    asked by Jon
  33. Statistics

    A disk drive manufacturer has determined that his product has a “mean time to failure” of 10,000 hours, with a standard deviation of 500 hours. Due to the many factors involved, it is assumed that the time to failure is normally distributed. A network

    asked by Fran
  34. Statistics

    Over a one-year period, it is observed that on approximately five percent of the days, a particular public telephone in a remote part of an airport is not used at all. On ninety-five percent of the days it is used, but the number of users is not known.

    asked by Fran
  35. Statistics

    You are a buyer bidding on a lot of 10,000 uncut diamonds. You select 100 stones at random, sight unseen, from the lot. The average weight is 0.98 ct with a standard deviation in the sample of 0.11 ct. What is the 95% confidence interval for the average

    asked by Fran
  36. math

    A cylindrical can holds three equal-sized balls perfectly. Which is larger, the can's height or the can's circumference? Height Circumference Impossible to tell They are equal My choice would be "Impossible to tell" because I could envision them (1) in a

    asked by M.A.
  37. Statistics

    You are a State Trooper on a roadblock. Since it is New Year’s Eve, you know from prior experience that approximately 5% of the drivers on the road have blood alcohol content over the legal limit of 0.08%. Your portable breathalyzer gives a PASS / FAIL

    asked by Fran
  38. Statistics

    The USDA size standards for eggs are based on weight and are as follows: SMALL: greater than 43 grams, less than 50 grams MEDIUM: greater than 50 grams, less than 57 grams LARGE: greater than 57 grams, less than 64 grams EXTRA LARGE: greater than 64 grams,

    asked by Ion
  39. Statistics

    An American style roulette wheel has individual compartments for the numbers 1 to 36, plus 0 and 00. If the payoff for a single-number bet is 35:1, what is the expected value of the winnings on any single-number bet?

    asked by Jus
  40. Statistics

    2. The arrivals of customers at a drive-in banking window are governed by the Poisson distribution. Each customer requires 5 minutes to transact his or her business at the drive-in window. The average customer arrival rate is 10 per hour. A customer

    asked by Jus
  41. english

    A primary concern is the substantial risks to women's health posed by the extraction procedure and the inability to obtain true informed consent from egg donors given the current lack of adequate safety data. can someone please break this sentence up to

    asked by rose
  42. science

    why is Drosophila melanogaster named so?

    asked by paula
  43. Physics

    How will the weight of a 20kg object change in an elevator if the elevator moves downwards with 4 m.s?

    asked by Devan
  44. Calculus

    Find an equation of the tangent plane (in the variables x, y and z) to the parametric surface r(u,v) =(2u, 3u^2+5v, -4v^2) at the point (0,-10,-16)

    asked by Salman
  45. English

    Can you check these sentences for me, please and help me rephrase some of them? Thank you very much for yesterday's corrections! 1) Catherine is not going to forsake Heathcliff (can you say to separate from Heathcliff). If she did, she believes she would

    asked by Franco
  46. economics

    If businesses believe consumption will increase six months from now, everything else held constant, and they begin to increase investment, what do you predict will happen to aggregate demand?

    asked by brittney
  47. world geography

    how did europe's peninsulas help it expand, considering economics and ideas etc?

    asked by jenn
  48. US history

    how is Pickett's charge an example of new tactics?

    asked by rusty
  49. chemistry

    how many grams of solute are in 135 mL of 0.100 M potassium bromide

    asked by Anonymous
  50. rugby

    hi why is co-ordination inportant in rugby

    asked by reece
  51. writing

    Iam having trouble coming up with a thesis and Ineed help , the book i read Ethan Frome and the essay topic "How does Mattie feel about Ethan"?

    asked by JEFF BOMB
  52. Psychology 202

    Neurologists involved in animal research studies of cognitive function see analogies in humans that suggest mental exercise reduces loss of brain mass. Which of the following statements describe their findings? (Points :1) Older adults who continue complex

    asked by Melissa
  53. US History

    How did Early Human history in North America differ from the events of Asia, Eurasia, and Europe? AND How were these differences important to the international state of affairs in 1450?

    asked by christopher
  54. calculus

    Find an equation of the plane orthogonal to the line (x,y,z)=(-4,-9,9)+t(-8,-1,5) which passes through the point (-9,9,-4). Give your answer in the form ax+by+cz=d.

    asked by zama
  55. computers

    You have been hired by a small company to network six computers in one small office that will be connected directly to the Internet. The company president wants a cost effective solution that will prevent hackers from accessing the gaining access to the

    asked by Anonymous
  56. As Physics

    Please help me with this calculation __________________

    asked by Susan
  57. FINANCIAL MANAGEMENT FOR HUMAN SERVICE MANAGERS

    XYZ NON PROFIT CORPORATION INCOME STATEMENT

    asked by cassandra
  58. geometry

    angle A, B, C, D are related the measure of anle B is 1/2 the measure of angle A, measure of angle C is the measure of angle B plus 40, The measure of angle D is 1/3 times the measure of angle C, If the measure of angle D is 35 what is the measure of angle

    asked by Anonymous
  59. chemistry

    The molecular formula of acetylsalicylic acid is C9H8O4. How many molecules of C9H8O4 are in a 750.0mg tablet of asprin?

    asked by Kerry
  60. MATH

    THREE 2 INCH DIAMETER TENNIS BALLS SNUGLY FIT IN A CYLINDRICAL CAN. THE BALLS TOUCH THE SIDE, TOP AND BOTTON OF THE PLASTIC CAN. HOW MUCH AIR IS IN THE CAN? ROUND DECIMAL ANSWERS TO THE NEAREST TENTH OF A CUBIC INCH. SHOW OR EXPLAIN HOW YOU GOT YOUR

    asked by MIMI
  61. maths-9th grade

    what do you call a female bug that float

    asked by brandon
  62. Biology

    19. The secondary xylem and phloem form from a. cork cambium b. vascular cambium c. apical meristems d. bark B? 7. A difference between beans and corn during germination is a. the cotyledons are above ground in the bean plant b. the corn shoot is hooked to

    asked by mysterychicken
  63. geometry

    Right triangle ABC is similar to triangle XYZ because angle B is congruent to angle Y. If angle C equals 33°,what is the measure of angle Z?

    asked by Jesus
  64. Ethics

    What does it mean to have legal corporate social responsibility? Economic corporate social responsibility? Philanthropic corporate social responsibility? Confused!!

    asked by me
  65. trig

    What is the projection of (2,6) onto (-1,5)?

    asked by BT
  66. English(literature)

    I need help how does mattie feel about ethan ? my answer she develops a romantic passion toward him(book title Ethan Frome I need help with my introduction and thesis please

    asked by JEFF BOMB
  67. Attn: DrBob222

    A .326L container holds 0.146g of Ne and an unknown amount of Ar at 30C and the total pressure is 627 mmHg. Calculate the moles of Ar present? (I have calculated temp 308K, pressure is 0.825 atm and moles of Ne are .007) Chem - DrBob222, Wednesday, March

    asked by Staci
  68. art 100

    what are the 5 definitions of art

    asked by lisa
  69. OZONE stuff

    When is the Antarctica ozone hole expected to recover almost completely? How do you know this?

    asked by ANNE, HELP!!!!!
  70. Physics

    What characteristic of water would you be investigating when you place a small drop of water on wax paper and when you try to float a paper clip in water? I know that the paper clip does not float and that the drop of water rolls around on the paper.

    asked by Janet
  71. English

    Can you check the grammar in the following sentences, please? 1)In order to reach the branch Lockwood pushed his hand through the window , but an ice-cold hand grabbed his fingers. In vain he tried to release himself from its tenacious grisp, which was

    asked by Franco
  72. History

    Earlier Yesterday. I was talking to Bobpursely,Writeacher,Ms. Sue and more i think. We were talking about my essay what was the impact of the Industrial Revolution. One of you told me to write an outline. Well this is a start. Can you tell me if it is

    asked by Ruth
  73. English

    I forgot to include these last statements. Thank you very much for your help. 1)He recognized Heathcliff's voice and thought it better (or it was better?) to confess his presence 2) He apoligized for disturbing his sleep and attributed his yell to a

    asked by Franco
  74. geometry

    if the perimeter of triangle ABC is 28 and X,Y,Z are the midpoints of AB, BC, and AC respectively, find the perimeter of triangle XYZ

    asked by Anonymous
  75. chemistry

    how to make 750ml of 1.5 m solution of naoh

    asked by Anonymous
  76. math

    respected sir i want to know the table describing the values of angles of trigonometry functions. eg. sin,cos & tan 15,30,45,60,75,90 separately in table format. thanking you! padam singh.

    asked by padam
  77. History

    By the way. The sentences seem long because your box is not long enough. Thesis:If you do not know the impact of the Industrial revolution, you will not understand anything in this essay. This topic is very good to study because you know about the

    asked by Ruth
  78. Statistics

    There are 100 marbles in a bag. 200people are asked to draw a ball. Each marble drawn is put back into the bag before the next draw. 7 people draw red color marbles. How many red marbles are there in the bag?

    asked by Anne
  79. physics

    In the operating Room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery. One gas that is often monitored is the anesthetic isoflourane (molecular mass = 3.06 · 10−25 kg). In a spectrometer, a

    asked by joshua
  80. grammar

    Concentration does not mean think one idea.

    asked by Hassan
  81. Intro to Technology

    a short article of 200 to 300 words in your notebook, including the following information: · What are some uses for CAD in business, industry, or education? · Name two software programs that you could learn to use to create a CAD project. · Describe one

    asked by Eduardo Gonzalez
  82. History

    This is my introductory paragraph. The Industrial Revolution was a period from the eighteenth to the nineteenth century where major changes in agriculture, manufacturing, mining and transport had a massive effect on the social, economic and cultural

    asked by Ruth
  83. Chemistry

    I have a 1L solution of 0.02M sodium acetate and 0.02M acetic acid. What is the pH after the addition of 0.05 moles of hydrochloric acid? I know this is a buffer question but I have no idea how I am supposed to go about getting the answer... I know Ka

    asked by Alex
  84. Accounting

    Rita forms Finch Corporation by transferring land (basis of 125,000; fair market value of 750,000) which is subject to a mortgage of 375,000. Two weeks prior to incorporating Finch, Rita borrows 125,000 for personal purposes and gives the lender a second

    asked by Alison
  85. History

    Is this ok? The Industrial Revolution was a period from the eighteenth to the nineteenth century during which major changes in agriculture, manufacturing, mining, and transport had a massive effect on the social, economic,and cultural conditions starting

    asked by Ruth
  86. math

    3/4 k-1/6=1/2

    asked by Daisy
  87. Calculus

    Find an equation of the tangent plane (in the variables x, y and z) to the parametric surface r(u,v) =(2u, 3u^2+5v, -4v^2) at the point (0,-10,-16)

    asked by Salman
  88. History

    I live in The United Kingdom. And we do not do grades we do Year. I am in Year 8 in United Kingdom. What is that in the United States? No it is an essay. I have been completing it because it is due for tomorrow. If you can please read it and make

    asked by Ruth
  89. Math

    would you use centimeter or millimeter for width of your finger

    asked by Kyle
  90. health

    Explain why, in terms of job performance and efficiency, knowing medical billing terms is critical for working in the health care field. Respond in at least 150 words and provide specific examples.

    asked by shunta
  91. History

    Can someone please proof read my essay! I am running out of time Please! edit,spell check,grammar please What was the impact of the Industrial Revolution The Industrial Revolution was a period from the eighteenth to the nineteenth century where major

    asked by Ruth
  92. chemistry

    reagents used to convert thymol to menthol

    asked by Anonymous
  93. 4th grade

    Megan drew a shape with four sides. Two of the sides are parallel. the other sides were not parallel. What kind of shape did Megan draw?

    asked by anu
  94. geometry

    what is the formula for a cylinder

    asked by freddy
  95. 5th grade

    round 3 2/7 and 101.496

    asked by Anonymous
  96. english

    what is the adverb in the sentence Women bought out gardening tools and baskets.

    asked by citlalli
  97. chemistry

    120 ml of oxygen is collected at 27degrees C and 740 torr pressure.What is the volume at STP?

    asked by jackee
  98. math

    how do u do two step equations

    asked by Joe
  99. chemistry

    a gas is collected at 740 mm and 23 degrees C. The volume is not measured until the next day when the pressure is 745 mm and the temperature 29 degrees C, at which time the volume is found to be 15.3 ml. What was the original volume?

    asked by john
  100. exprxion

    . Simplify the following expressions points) a. sqrt(20) + sqrt(5) b. (6 + sqrt(18))/6 c. sqrt(9y^4x^0.5)^0.5

    asked by Anonymous
  101. Physics(Please help)

    What characteristic of water would you be investigating when you place a small drop of water on wax paper and when you try to float a paper clip in water? I know that the paper clip does not float and that the drop of water rolls around on the paper.

    asked by Janet
  102. hospitality

    identify the major trans related to diversity and explain their effects on the hospitality industry

    asked by marie
  103. math

    What is the square inches of a 6" circle?

    asked by ann
  104. Chemistry

    In a titration HCl and NaOH have a 1:1 ratio. Can you still use the formula M1V1 = M2V2 to find the molarity of the NaOH base if we change the acid to sulfuric H2SO4?

    asked by Jimmy
  105. chemistry

    Suppose a solution containing 3.50 g of Na3PO4 is mixed with an excess of Ba(NO3)2. How many grams of Ba(PO4)2 can be formed.

    asked by Kerry
  106. calculus

    find f' for each of the following where g and k are differentiable functions. F= g{sq.rt. of k(x^2)}

    asked by Anonymous
  107. Math

    What is e^x times e^x?

    asked by Daisy
  108. Fondations of business

    Read the two case studies on pages 233-236 of the text. Answer the following in a 200- to 300-word response: What motivation theories may be found in each case study? Describe the theories found in each case study and cite specific examples. What was each

    asked by Amber
  109. Maathh

    Describe the method of graphing by using intercepts.

    asked by Natalie
  110. math

    5/___=9=6+3

    asked by sara
  111. Biology--PLEASE just answer this!

    This is literally like my 5th time posting this up. If you can't answer it, just tell me so that it saves me my own time. Thank you 19. The secondary xylem and phloem form from a. cork cambium b. vascular cambium c. apical meristems d. bark B? 7. A

    asked by mysterychicken
  112. windows xp

    David, a graphic designer working for a small Internet firm, wants to use his own legacy scanner with a new Windows XP Professional system. A Standard PC HAL was installed during the machine build process. David’s computer is a member of the corporate

    asked by monika
  113. science

    what land locations around the world have the highest incidences of hurricanes? i need 3 answers by the end of the day!!!

    asked by Eunice Kim
  114. science

    how are hurricane paths projected? i need 2 answers by the end of the day!!!!!

    asked by Eunice Kim
  115. chem

    calculate the pH for a solution that is made by combining 125ml of 6.0*10-2 M hydroflouric aid with 50 ml of .12 M sodium flouride?

    asked by Nikki
  116. 3rd grade

    If the perimeter of a square 220 centimeter what is the lenght of each side

    asked by mike
  117. 6th grade math

    ok i need to get this problem 9/2m - 8 = - 5.5 + 4m in a way like this 9 + 5k = 45 + 2k operation s 9 5k = 36 + 2k s 2k 3 = 36 d 3 k = 12

    asked by Avril
  118. calculus

    find the equationss of both tangenr lines to the curve defined by y=(1/x^2), x cannot equal 0 from the external point P(0,1). I tried but i got one equation. Can you please verify if it is: y=-0.38x-1. Thanks

    asked by Anonymous
  119. college algebra

    Is x= -2 a solution for this inequality? 4+2 x-7>-4(x-2)-9

    asked by denise
  120. Biology

    20. One difference between a gastrovascular cavity and a one-way digestive system is the presence or absence of a. cell specialization b. digestive enzymes c. digestion within body cells d. a moist membrane for nutrient diffusion A? 21. In an open

    asked by mysterychicken
  121. Precalculus

    NEED HELP ASAP PLEASE!! A bacteria culture starts with 2000 bacteria and the population doubles every 3 hours. a) A function that models the number of bacteria after t hours is p(t)=____________? b) The number of bacteria present after 5 hours will be

    asked by jh
  122. calculus

    find the equationss of both tangenr lines to the curve defined by y=(1/x^2), x cannot equal 0 from the external point P(0,1). I tried but i got one equation. Can you please verify if it is: y=-0.38x-1. Thanks

    asked by Anonymous
  123. Precalculus

    NEED HELP ASAP PLEASE!! A savings account starts with $600 and pays 5% interest per year, compounded four times per year. a) A function that models the amount in dollars in the bank account after m years is A(m)=____________? b) How much will be in the

    asked by jh
  124. physics

    how far will 350 J raise a 7 kg mass?

    asked by Susan
  125. math

    L,M,N,O and l,m,n,o are they equal, equivalent or neither? I can not figure this out please help.

    asked by david
  126. calculus

    Given f(x)=x^2-4 and g(x)=1-x and k(g(x))=f(x) find k(x) and then k'(x).

    asked by Anonymous
  127. Sociology

    What are the two social order views (contrasting) in the movie THE ISLAND (cloning)? Can someone explain to me what social order is

    asked by Tim
  128. Chemistry

    The esterification of acetic acid and ethanol is given by the reaction below: C2H5OH(aq) + CH3COOH(aq)===>CH3COOC2H5(aq) + H2O(l) When 1.00 mol of ethanol was mixed with 2.00 mol of acid in a 1.00 L flask, 0.86 mol of ester was formed at room temperature.

    asked by Bababab
  129. Math

    Take an odd digit and use it exactly three times, so that the three digits are equal in value to an even number. ADDITION, SUBTRACTION, MULTIPLICATION AND DIVISION CANNOT BE USED! Can you please help me!

    asked by Casey
  130. physics

    which is more work pushing with 115N over 15 m or lifting 20N 10meters

    asked by Susan
  131. Math

    96 * .5 + 30 =

    asked by Spunky
  132. A.P. CHEMISTRY

    How many grams of methanol are needed to raise the boiling point of 250 mL of water by 2.7C. The boiling point elevation constant for water = 0.512 C/m. Assume water to have a density of 1g/mL)

    asked by mary
  133. Math

    How many liters is in 4,200 millilieters

    asked by Cameron
  134. 6th grade math

    each new backpack at delias bookstore comeswith one free gift.the ber graph below shows the number of differt types of freegifts that wrw placed in 50 different backpacks. NEW BACKPACKS WATER BOTTLE-15 KEY RING -20 DAILY PLANNER - 10 NOTEBOOK - 5 if the

    asked by LOU LOU
  135. math

    what does perpendicular mean????????????

    asked by LOU LOU
  136. math

    Choose the one alternative that best completes the statement or answers the question. Use inductive reasoning to predict the next number in the sequence. 1) 7, 13, 19, 25, 31, . . . 1) _______ A) 43 B) 38 C) 37 D) 36 Indicate whether the sequence is

    asked by Jen
  137. Math

    Hannah and Tyler count the number of times the word what occurs. Hannah's data has mean of 2.7 times. What could Tyler's mean be if his results are similar?

    asked by Danielle
  138. Social Studies

    How does a town's economic base determine how the community takes shape? Please help me.

    asked by Anon
  139. french

    what does plus ou moins mean in french

    asked by Anonymous
  140. Math

    At the 2010 Winter Olympics, in Vancouver, BC, Usain Bolt won the 100 meters, finishing in 9.69 seconds (a world record.) What was his speed in miles per hour, rounded to the nearest tenth? (1 meter is approximately 39.37 inches.) State the answer in

    asked by Joey
  141. Math

    Find each quotient. A. 7/3 ÷3 1/2 B. 5/6 ÷ -18

    asked by Hanna
  142. Math

    A large fish bowl holds 4,200 milliliters. Which measure is equivalent? A.4L 200mL B.40L 20mL C.400L 2mL D.40,000l .2ml

    asked by Cameron
  143. physics

    if a particle has work of 8J and doubles its speed. how much work it has done? Can we still determine work in this problem without mass

    asked by eng
  144. Physics

    An empty rubber balloon has a mass of 0.012kg. the balloon is filled with helium at 0 degrees celcius, 1 atm pressure, and a density of 0.179 kg/m3. the filled balloon has a radius of 0.5 m. a)what is the magnitude of the buoyant force acting on the

    asked by Taylor
  145. Biology

    20. One difference between a gastrovascular cavity and a one-way digestive system is the presence or absence of a. cell specialization b. digestive enzymes c. digestion within body cells d. a moist membrane for nutrient diffusion A? 21. In an open

    asked by mysterychicken
  146. science

    looking for some adaptations the chinese golden pheasant might have made

    asked by spencer
  147. Macroeconomics

    An economy is facing the recessionary gap shown in the accompanying diagram. To eliminate the gap, should the central bank use expansionary or contractionary monetary policy? How will the interest rate, investment spending, consumer spending, real GDP, and

    asked by Yzenetra Adams
  148. MATH214

    If is a line whose equation is y = 2x - 1, find the equation of the image of under each of the following translations: a. (x, y) → (x, y - 2) b. (x, y) → (x +3, y) c. (x, y) → (x - 3, y + 2)

    asked by Rebecca
  149. Macroeconomics

    Show the changes to the T-accounts for the Federal Reserve and for commercial banks when the Federal Reserve buys $50 million in U.S. Treasury bills. If the public holds a fixed amount of currency (so that all loans create an equal amount of deposits in

    asked by Yzenetra Adams
  150. Macroeconomics

    The effectiveness of monetary policy depends on how easy it is for changes in the money supply to change interest rates. By changing interest rates, monetary policy affects investment spending and the aggregate demand curve. The economies of Albernia and

    asked by Yzenetra Adams
  151. physcis

    During a ski race, Kate uniformly accelerated at 3.15m/s^2 for 100meters. She then maintained this velocity for another 100m. she then uniformly decelerated at 6m/s^2 for 2 seconds. she accelerates back to her maximum velocity over the next 200meters in 16

    asked by jake
  152. physics

    During a ski race, Kate uniformly accelerated at 3.15m/s^2 for 100meters. She then maintained this velocity for another 100m. she then uniformly decelerated at 6m/s^2 for 2 seconds. she accelerates back to her maximum velocity over the next 200meters in 16

    asked by jake
  153. World History

    How are Muslim women similar and different from Christian women?

    asked by Troy
  154. math214

    3-D Shape Assignment Build a three dimensional shape and prepare a set of questions to be presented to the class for problem solving. Questions should encourage students to cover the concepts of perimeter, volume, surface area, number of vertices, faces,

    asked by alicia
  155. Survey ?

    Why should people be informed about teen suicide? ( I need like a stong reason It's a survey question that we have to ask different people. Thank you for helping me out)

    asked by Courtney
  156. english

    i been stuck on a question for awhile what is the theme of this short story "he-y come on ou-t" i couldn't figure out what is the theme i was wonderin if u can give ideas of what the theme is w w

    asked by needhelpbadly
  157. calculus

    Give the volume of the solid generated by revolving the region bounded by the graph of y=ln(x), the x-axis, the lines x=1 and x=e, about the y-axis

    asked by josh
  158. Universe and Stars

    As u look at the stars that re beyond and farther away, what occurs to the angle measured at earth? at what point will this method no longer work? Someone please help explain

    asked by Sara
  159. Attn: Staci

    I posted a response. At this time it is on page 2 but will progress further from page 1 as more new questions are posted.

    asked by DrBob222
  160. math

    6 * 6t^-2 * 6t would be 216/t ? THX!

    asked by Jackson
  161. math

    ( (-1)^5/(-2)^-3 )^2 THANKS!

    asked by Justino
  162. MATH

    there is a triangle with a base of 2.4 m and both sides are 1.7 m. it is a right triangle. what the heck is the answer? i have an answer sheet and i know the answer is 41 but how do you get that answer?

    asked by j
  163. Stars and the Galaxies

    if alpha centauri were to all of a sudden disappear, we wouldn't knknow 4 another 4.3 years. How come? Why would this be the case? would this be the case because its really far away from us and it's 4.3 light years away. So if it suddenly just vanished out

    asked by Sara
  164. Chemistry

    What are induced dipoles?

    asked by Anna
  165. 6th grade math

    1/3p + 7 = 12 - 2/3p what does P equal first check how Avril did it on her question then check mine

    asked by Spunky
  166. Math

    A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket from telescope B at he moment when

    asked by Anonymous
  167. 4th grade math

    write and solve a mixed number word problem

    asked by emily
  168. chemistry

    Calculate the molality of a 2.50 molarity NaCl solution. Density of solution = 1.08 g/ml.

    asked by Anonymous
  169. Chemistry

    What types of intermolecular forces allow CO2 to dissolve in water? Do CO2 and H20 have a relatively strong or weak attraction?

    asked by Aidan
  170. Math

    If f(x)=7, find: f(10) f(0)

    asked by Anonymous
  171. english

    how does Siddharthas dad change Siddhartha?

    asked by Jade knight
  172. science

    What is the net force of 25n downward and 45n upward?

    asked by Kim
  173. English

    I need a opening line which will grab my reader's attention right away. Here are some examples: *"I was on fire" *"Everybody lies. cops lie. laywers lie. witnesses lie. victims lie." I can't think of anything. Any suggestions?

    asked by Sara
  174. japan

    How do you say the restaurant is located inside the hotel. れすとらんはほてるのなかです

    asked by luke
  175. english

    what are the possible advantages for whether or not humor is an effective way to package a serious message.

    asked by needhelpbadly
  176. math

    Reasoning: Hannah and Tyler count the number of times the word what occurs. Hannah's data has mean of 2.7 times. What could Tyler's mean be if his results are similar?

    asked by Danielle
  177. science

    how are hurricanes paths projected? and i need it before 9 o'clock. i go to the same school as eunice kim

    asked by Evan Tam
  178. science

    You are given three cups of liquids that look identical. Use the sequence words - first, next, after, and finally - to explain how you might tell whether the liquids are the same or different?

    asked by LeeAnne
  179. business

    good writing costs companies money,and these cost increase significantly if the communication is ineffective. would computers and software be an additional cost to the company if written communication was poor?

    asked by sharon
  180. math

    How do I graph a circle with the center being (0, 5) that passes through (0, -5) and then find area a and circumference?

    asked by karen
  181. math

    int 1/ (sq rt (4sec^2 x +4)) dx trigonometric substitution expression: sq rt (x^2-a^2) substitution: x=a sec x identity: sec^2 x -1=tan^2 x

    asked by maggie
  182. 1st grade

    How much wood could a wood chuck chuck if a wood chuck could chuck would

    asked by Dolly
  183. math

    how many seonds are in 24 hours? and could you show me the work

    asked by Anonymous
  184. To: Ms.Sue

    Ms. Sue, did you read my response for my previous post, I listed some lines, but I don't think they're that good, I want to create a really good one

    asked by Sara
  185. biology

    what is the advantage of stopping mitosis in metaphase when the making of chromosomes are being spread?

    asked by Sara
  186. math

    how could you find the circumference of many different circles with a calculator without punching in 3.14 for every problem?

    asked by colton
  187. AP Physics

    A merry-go-round rotates at the rate of.2rev/s with an 80kg man standing at a point 2m from the axis ofrotation. (A)What is the new angular speed when the man walksto a point 1m from the center? Assume that the merry-go-round is a solid 25kg cylinder of

    asked by Justin
  188. Physics

    a hoop of radius .5 m & mass .2 kg is released from rest & rolls down an inclined plane. how fast is it moving when it has dropped a vertical distance of 3 m?

    asked by Anonymous
  189. Physics

    A wheel with an I of 5.00 kg-m^2 starts at rest & accelerates under a constant torque of 3 N-M for 8 seconds. what is the wheel's rotational ke at the end of 8 seconds?

    asked by Anonymous
  190. Economic

    Why are current clothing styles generally more expensive than classic styles? a.current styles are better quality items b.classic styles do not change as often c.current styles have less variety d.classic styles are usually on sale i think the answer is d.

    asked by pam
  191. Economic

    Consumers who can store large quantities of bulk food items can save money by shopping at A. convenience stores. B. warehouse stores. C.large supermarkets. D. discount stores Is it c?

    asked by pam
  192. Economic

    Relative to people at the turn of the nineteenth century, people today spend A.a larger percentage of their income on clothing B. a smaller percentage of their income on clothing C. about the same percentage of their income on clothing D. about four times

    asked by pam
  193. math

    For my class you have to choose from several different scenarios, make up your own equations from the scenario, and then solve and graph them in excel. I have chosen the following scenario: Evaluate whether a prepaid or monthly cell phone plan is most

    asked by Jessica
  194. math

    an employee pays 250 in taxes during one month. the tax rate is 30% what is her gross pay and net pay for that month i am so confused would i say 250*30%= $75 than add 250+75=$325 Can someone tell me if that is right.

    asked by haleigh
  195. Chemistry

    Br2 + 5F2 --> 2BrF5 How many molecules Br2 react with 1.11 x 10^20 molecules F2? I got 2.21 x 10^47 but I feel that's too big and is most likely wrong. Can someone help me?

    asked by Ana
  196. Chemistry

    I am having a bit of difficulty getting the net equation and the net ionic equation and the net ionic equation. I think I have the balance equation right. Thanks in advance for any help. For the acid base neutralization reaction of carbonic acid,

    asked by Amanda
  197. HCA/210

    The assignment says to describe 2 approaches to measure patient outcome. I have read the chapter several times and I am still confused. Has anyone taken this class? If so do you know of a website that I could maybe research for more information? Thanks!

    asked by Very Confused
  198. Math

    12-11a=45

    asked by Neah
  199. physics

    you ca obtain four 20 ohms resistors from te stock room. ow can you aciee a resistance of 50 ohms uder these circumstances

    asked by watever
  200. honors algebra 1

    if f(x)=2x and g(f(x))=x, find g(x)

    asked by fredrich
  201. chemistry

    The kinetic energy of a rolling billiard ball is given by {\rm{KE}} = 1/2\,mv^2 . Suppose a 0.17-{\rm kg} billiard ball is rolling down a pool table with an initial speed of 4.5 m/s. As it travels, it loses some of its energy as heat. The ball slows down

    asked by john
  202. Baselines

    Which are better longer baselines or shorter baslines for measuring stuff. Can someone please give me an explanation about them, thanks

    asked by Sara
  203. spelling

    wouldn't:couldn't::greeen:

    asked by Anonymous
  204. Physics

    A particle of mass m is shot with an initial velocity vector v i and makes an angle θ with the horizontal, as shown below. The particle moves in the gravitational field of the Earth. (makes a shape of a parabola)Find the angular momentum of the particle

    asked by emath
  205. spelling

    fifteen:five::nine:?

    asked by Analogies
  206. math

    a rectangle has a length of 3 yds, 8 in. and a width 2 ft., 3 in. multiply the lenth and width to find the area of the rectangle

    asked by stacy
  207. chemistry

    What is the formula used to solve the problem: How many milliliters of 1.171 M HCl are required to react with 7.69 grams of CaCO3 ?

    asked by Paige
  208. human services

    How does the unique realtionship between human service oragnizations and the populations they serve impact ethical decisions? what are some dilemmas that occur in human service organizations? which do you thind has the greatest power to solve or prevent

    asked by sally
  209. Chemistry

    An alpha particle (mass 6.6 x 10^-24 grams) emitted by radium travels at 3.4 x 10^7 plus or minus 0.1 x 10^7 mi/h. (a) What is its de Broglie wavelength (in meters)? (b) Whats uncertainty in its position? for part a I got -3.41 x 10^6 meters which said it

    asked by Samantha
  210. Chemistry

    In 1909, Robert Millikan performed an experiment involving tiny, charged drops of oil. The drops were charged because they had picked up extra electrons. Millikan was able to measure the charge on each drop in coulombs. Here is an example of what his data

    asked by Syeda
  211. ALEGEBRA

    The new school has exactly 1000 students and 1000 lockers.On the first day all the students meet outside and agree on the following plan: the first student will enter the school and open all the lockers.The second student will then enter the school and

    asked by HALIS
  212. history

    How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe? Be specific prologue in text book the american nation a history of the united states

    asked by christopher
  213. human services

    Which do you think ahs the greatest power to solve or prevent the delimmnas?

    asked by sally
  214. human resource

    Is there anyone familiar with course 230/Ethical Issues in Human Services???

    asked by sally
  215. Chemistry

    How much energy will be released when 11.11g of calcium chloride dissolves in 100 mL of water. deltaHf of Ca 2+ (aq)=-543Kj/mol, deltaHf of Cl 1-(aq) = -167Kj/mol CaCl2(s) ==> Ca 2+(aq) + 2Cl 1-(aq)

    asked by Jason
  216. Chemistry

    In chemistry, for a given substance what information links mass to moles? number of particles to moles?

    asked by Ana
  217. physics

    can someone take me through this vector combination question please an airplane is observed to be flying at a speed of 600km/h. The planes nose points west. The winds velcoity is 40km/h 45degrees west of south. Find the air planes velocity relative to the

    asked by jake
  218. Geometry

    Over July 16, 1882, a massive thunderstorm over Dubuque, Iowa, produced huge hailstones. The diameter of some of the hailstones was 17 inches. Ice weighs about 0.033 lb/in^3. What was the approximate weight of these hailstones to the nearest pound? The

    asked by Joy
  219. Math

    Determine the equation of the graph in the form y = acos(bx). I will try and describe the Graph. -It starts at the origin (0,0) -It has a minimum value of -2 -It has a maximum value of 2. -It has an x-intercept of 90 degrees. -It starts moving downward

    asked by Jill
  220. art

    Can some one help me with this art question. Not sure what exactly it is asking for. 1) Look at Las Meninas by Diego Velázquez and describe the formal qualities of this work in terms of its organizing space. Do the formal qualities working together create

    asked by jen
  221. Chemistry

    What counts as a conversion factor ?

    asked by Ana
  222. Physics.

    The figure below shows an arrangement of 15 identical disks that have been glued together in a rod-like shape of length L = 1.4500 m and (total) mass M = 135.000 g. The arrangement can rotate about a perpendicular axis through its central disk at point O.

    asked by Jake
  223. physics

    can someone please take me step by step on this problem a swimers speed in still water is 1.35m/s if the current speed is 0.60m/s and the river is 106.68 meters wide. how long will it take to cross the river

    asked by jake
  224. Chemistry

    Why do we need to use amount in moles to solve stoichiometry problems? Why can't I just convert from mass to mass? I'm not sure how to answer. I think I know the answer and just can't formulate it into words.

    asked by Ana