Questions Asked on
September 7, 2009

  1. Chemistry

    At 900 K the following reaction has Kp=0.345; 2 SO2(g) + O2 (g) -> 2 SO3 (g) In an equilibrium mixture the partial pressures of SO2 and O2 are 0.145 atm and 0.455 atm, respectively. What is the equilibrium partial pressure of SO3 in the mixture?

    asked by Anonymous
  2. physics

    A lead ball is dropped into a lake from a diving board 5.24 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.86 s after it is dropped. (Assume the positive

    asked by Nick
  3. Chem

    1) Draw the Lewis structure for CH3NCO, a neutral molecule. 2) Draw the best Lewis structure for NCCH2COCH2CHO, a neutral molecule.

    asked by Glow
  4. physics

    An ostrich can run at speeds of up to 72 km/h. How long will it take an ostrich to run 1.5 km at this top speed?

    asked by aaron
  5. algebra

    F=Gm1m2/d2 solve for m1

    asked by Kaity
  6. math

    a person with no more than $15,000 to invest plans to place the money in two investments. one investment is high risk, high yield: thfe other is low risk, low yield. at least $2,000 is to be plaaced in the high-risk investment. furthermore, thfe amount

    asked by diana
  7. psychology

    What task component distinguishes the Wechsler Scales from the SBIS?

    asked by Erica
  8. chemistry

    The element copper has naturally occuring isotopes with mass numbers of 63 and 65. The relative abundance atomic masses are 69.2% for mass=62.93 amu, and 30.8% for mass=64.93 amu. Calculate the average atomic mass of copper.

    asked by henry
  9. Organic Chemistry

    What orbitals are used to form the C–B bonds in B(CH3)3?

    asked by Anon
  10. Science

    Draw the Lewis structure for N2H2, a neutral molecule.

    asked by Casey
  11. math

    Gamblers are playing a game of chance in which they have a 1/40 chance of winning $90. What is the expected payout of this game? x 0 90 p(x) x.p(x)

    asked by maelee
  12. accounting

    The Landis Corporation had 2008 sales of $100 million. The balance sheet items that vary directly with sales and the profit margin are as follows: Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5% Accounts receivable. . . . . . . .

    asked by Jim
  13. Pre-Calc

    I am having a great deal of difficulty with this problem. An open box is formed by cutting squares out of a piece of cardboard that is 16 ft by 19 ft and folding up the flaps. a. what size corner squares should be cut to yield a box that has a volume of

    asked by Ashley
  14. Geography

    16. Although most of South America lies within the tropical latitudes a. climate and vegetation differ greatly in the region b. cold ocean currents keep the air cool and dry c. there is little tropical vegetation on the continent d. the abundance of

    asked by mysterychicken
  15. chemistry

    The density of aluminum is 2.70g/cm3 and the density of chromium is 7.19g/cm3. If eual masses of aluminum and chromium are transferred to equal volumes of water in separate cylinders, which cylinder would have the greates volume change.

    asked by Anonymous
  16. science

    Draw the Lewis structure of [NH2]– Draw the Lewis structure of [(CH3)3O]+ Label(or unlabel) the sp-hybridized atoms, sp2-hybridized atoms and sp3-hybridized atoms. Basically I need help determining which of those atoms are the sp, sp2, sp3 hybridized

    asked by Anabelle
  17. Geography

    Can someone please check if my answers are correct? 16. Although most of South America lies within the tropical latitudes a. climate and vegetation differ greatly in the region b. cold ocean currents keep the air cool and dry c. there is little tropical

    asked by mysterychicken
  18. history

    plz check. thanks Compare and contrast the short and long- term effects of the Crusades on Western Europe and the Middle East. Western Europe: The series of military expeditions, spanning more than a hundred years, began with Pope Urban II to take back the

    asked by Anonymous
  19. English

    1. There are many ways to help you healthy. (Is this a correct sentence?) 2. How do you feel when you see green colors? I feel happy. I feel calm. It make me feel happy. It makes me happy. 3. Which season do you like the most? Why? I like summer and winter

    asked by John
  20. chemistry

    Bill finds an unusual object and wishes to calculate it's density. He discovers a problem of accurately weighing it, because it won't stay on the weighing pan. To solve this he adds the object to a beaker containing 161 mL of distilled water and finds the

    asked by Sam
  21. chemistry

    Bill finds an unusual object and wishes to calculate it's density. He discovers a problem of accurately weighing it, because it won't stay on the weighing pan. To solve this he adds the object to a beaker containing 190 mL of distilled water and finds the

    asked by abbey
  22. Organic Chem

    What orbitals are used to form the C–B bonds in B(CH3)3?

    asked by Anonymous
  23. business english

    Prewrite about you field of study and create a apecific job for which you might want to apply at a particular business or organization in you area.

    asked by saral
  24. Chem

    You've just prepared a solution by transferring 20.0 g of glucose into a 1.0 - L volumetric flask, and adding water to the mark. Calculate the concentration of the glucose solution in terms of millimoles/Liter, mg/mL, and % (m/v). Ok, I think i'm

    asked by Britt
  25. biology

    why does repiration work better at higher temperatures

    asked by shar
  26. English

    1. What do we have to do to change people's feeling? 2. What do we have to do to change people's feelings? (Which is correct, feeling or feelings? Are both OK?)

    asked by John
  27. social studies

    may you please name 1 or more explore(s) that searched for a northwest passage?

    asked by Leah
  28. Math (Angle Calculation)

    Would -75.74 degrees be the same as 284.26 degrees?

    asked by Ben
  29. Biology

    bio 1003 lab notes baruch Experimental setup 1 contains live, germinating pea seeds. Experimental setup 2 contains germinated then boiled pea seeds. Experimental setup 3 contains dry pea seeds that have not begun to germinate. Experimental setup 4 is a

    asked by Melissa
  30. biology

    can germinated then boiled seeds perform aerobic cellular respiration? why? can live germinating pea seeds perform aerobic cellular respiration? what about dry seeds that have not begun to germinate?

    asked by Melissa
  31. History

    7 unifying characteristics of los angele's?

    asked by Kiana
  32. Geography

    Need help with these questions: 18. Latin American society is marked by a. large gaps between rich and poor b. great equality of income c. declining population growth d. a growing middle class D? 20. Under the encomienda system established in the colony of

    asked by mysterychicken
  33. Art

    A polular Western myth portrays artists as completely asocial, isolated geniuses whose work is not recognized as important during their lifetimes. Do you think that the nonconformist (or even tragic) artist might fulfill an important role in a paticular

    asked by Nicole
  34. Physics

    Two point charges q1 and q2 are held 4.00 cm apart vertically. An electron released at the middle point that is equidistant from both charges undergoes an initial acceleration of 8.95 X 10^18 m/s2 directly upward,parallel to the line connecting q1 and q2

    asked by sandhu
  35. physics

    Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?

    asked by Nick
  36. Art

    Some people claim their tax dollars should not support art that they find offensive. Is that position different from those who object to tax dollars being spent on a military project they think is wasteful, or medical research that they find unethical?

    asked by Nicole
  37. math

    20/5x6

    asked by krystina
  38. Physics

    Two point charges q1 and q2 are held 4.00 cm apart vertically. An electron released 3 cm from the middle point that is equidistant from both charges undergoes an initial acceleration of 8.95 X 10^18 m/s2 directly upward,parallel to the line connecting q1

    asked by sandhu
  39. physics

    Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?

    asked by Nick
  40. English

    1. Remember, school comes first. 2. Remember that school comes first. 3. Remember school comes first. (Which expressions are correct? Are all correct? Do we have to put a comma after 'Remember'?)

    asked by John
  41. Math

    The side of a square is (Radical 18). What is the area of the square? A) 18 B) 36 C) 9 D) 4 (radical 18)

    asked by Trey
  42. Math

    (square root 5) times (square root 12) x > 0, (square root x) times (square root 3x)

    asked by Collin
  43. A.P. Economics

    How do patents and copyrights promote innovations? Please help me answer this question...I've read my text thrice and also searched it in google!!! Thanks..

    asked by Ami
  44. science

    create a hypothesis for each of the following testable question

    asked by taliaya
  45. math

    In the year 1910, many people immigrated to the United States-460,935 from northern and Western Europe, 465,356 from eastern and southern Europe, 89,534 from the Americas, 23,533 from Asia, and 1,072 from Africa. Make a bar graph to show this data. What

    asked by alice
  46. reading

    in the book The Crucible what are examples of elezabeth proctors pride

    asked by bandit
  47. statistics

    a set of building blocks includes blocks of various shapes and colors. if 10% of the blocks are cubes, and 40% of the cube blocks are red, then what percentage of the blocks are red cubes

    asked by Angie
  48. Office

    I am running for class officer and I need a sologan for Vice President. Any ideas?

    asked by Joslyn
  49. English Grammar

    My mom & I are having trouble with appositives & predicate nominatives which function as nouns. We would like a definition or description of how to recognize them. Thanks!

    asked by Ayana
  50. Math

    50 students are surveyed and here is the result. Food Frequency Ice cream - 12 Cookies - 11 Fruit -6 Candy -13 Other -8 Which of the following statement is true. A. More than half of the children chose candy B. More than half of the children chose either

    asked by Jen
  51. history

    Describe the developments and shifts in the role of women in China and Western Europe between 600 and 1450 C.E.

    asked by Anonymous
  52. Geometry

    I really need help on this question can someone plz help me. If P(A)=2/11,P(B)=3/11,and P(C)=4/11, what can you say about P(A or B or C) when P(A and B and C) = 0?

    asked by Lisa
  53. Economics

    Please help!!! Q. What are 2 roles of consumer? I said one is that their demands help maintain competition in the market. I don't know the other one. Q. What are 6 rolesof free enterprise? I said: a) individuals make their own choice in the purchase g

    asked by Ami
  54. science

    I have to make a collage that illustrates the dependence of life in my community. Can you give me some idea?

    asked by Harley
  55. Chem

    Which molecule is not polar (possesses no net dipole)? Option 1. acetone [Marvin structure] Option 2. cis-dichloroethene [Marvin structure] Option 3. methylbromide [Marvin structure] Option 4. trans-dichloroethene [Marvin structure] Option 5.

    asked by Mike
  56. Mathematics

    Let 5a+12b and 12a+5b be the side lengths of a right-angled triangle and 13a+kb be the hypotenuse, where a,b and k are positive integers. find the smallest possible value of k and the smallest values of a and b for that k.

    asked by Maximillion Stone
  57. geography

    i need help to unscramble a few words from chapter 1. the word looks like this "nat ernuimgano"

    asked by dawn
  58. U.S. History

    To what extent would it be accurate to say that New England, Middle, and Southern Colonies had merged to create a single American Society by the end of the French and Indian War?

    asked by Mara
  59. German

    What are two german foods..clothing..and holidays?

    asked by Shirley :)
  60. science

    I have to make a collage of living things in my community and tell how they depend on each other.If something were to happen to one,how would it affect the others?

    asked by Harley
  61. Spanish History..?

    One spanish explorer landed on ____ street in St. Petersburg. A plaque marks the arrival of ____ in (date) ____ located at Abercrombie Park. Name two ways one might know that an influx of immigrants lives in the area. Where can one find a statue of

    asked by Deborah
  62. English

    1. He is upset because she got a very good grade. 2. He is upset because she got very good grade. (Do we have to use 'a' before 'very good grade' or not?)

    asked by John
  63. arithmetic

    what is the mean, median and mode also range of stem and leaf Plots?

    asked by mary
  64. English

    1. Approach level 2. On level 3. Beyond level (What is the meaning of each level? Would you explain that in the ability of students?)

    asked by John
  65. Biology

    What is interdependence of organisms?

    asked by Mary
  66. communication Technology

    Transmission - listening,thinking,searching

    asked by Lane
  67. science

    what is the meaning of -Reliability, -Accuracy, -Precision. in a science experiment? thanks

    asked by Adam
  68. math

    during the winter bill blank has been quite concerned about the total number of gallons of home heatiang fuel he used. last winter he used 1505 7/8 gallons of oil. here is a summary of this years usage... dec. 525 1/4 jan.488 5/8 feb. 481 3/8 mar.255 1/3

    asked by angie
  69. English

    1. Food also can help people's feelings. 2. Food can also help people's feelings. (Which one is correct? It is related to the position of 'also')

    asked by John
  70. Business Math

    A store owner buys suppleis from a vendor for 8.40. The terms of sale are 2/30, n/30. What will be the net amount due if the owner pays the bill by the 10th day after he receives the supplies?

    asked by Jan
  71. chemistry

    WOuld you expect each of the following atoms to gain or lose electrons when forming ions? What ion is most likely in each case? a. Na b. Sr c. P d. Ba

    asked by shirley
  72. English

    1. A: Let's put a bell on the cat. Do you agree? B:Yes, I do. I'll second that. (What other expressions can we use instead of 'second'?) 2. It is a piece of cloth or other material. 3. It is a piece of cloth or other materials. (Are both sentences correct

    asked by John
  73. history

    Compare and contrast the short and long- term effects of the Crusades on Western Europe and the Middle East.

    asked by Anonymous
  74. Physics

    A lead ball is dropped into a lake from a diving board 5.42 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.98 s after it is dropped. (Assume the positive

    asked by Ray
  75. biology

    Why does ice float in liquid water?

    asked by ken
  76. MATH

    wHAT IS 10 TO THE THIRD POWER?

    asked by JOY
  77. Physics

    Two point charges of magnitudes -6.25 nano coulomb and -12.5 nano coulomb are separated by 25.0 cm There is a point A between the line joining the two charges at a distance 10.0 cm from the charge -12.5 nano coulomb.Find the magnitude of the net electric

    asked by sandhu
  78. maths

    using the numbers 3,5, 7, only once how do you get the answer 61 ?

    asked by bill
  79. algebra

    2+x=8

    asked by josephine
  80. history

    plz help me with my question ... Describe and analyze the impact of the Columbian Exchange on one of the following regions between 1400 and 1700. it says on one of the following and their is no option ?

    asked by Anonymous
  81. Successful College Writing

    I am having a tough time with this one question. Which of the following sentences contains a dependent clause? 1. The red sports car that was parked under the tree belongs to Alan. 2. Jared eagerly climbed into the boxing ring; he was on his back and out

    asked by Anonymous
  82. Successful College Writing

    In response to your question. Yes I do believe "That was parked under the tree" can stand alone.

    asked by Anonymous
  83. History

    I posted the other night about a topic for my research paper. The event had to be between 1492-1865. I think that I might have come up with one. I was thinking about the Jacksonian Era? What would be some sub categories for this. I started researching

    asked by Liz
  84. Biology

    Describe the interactions between organism and explain why they are important. Thank you!

    asked by Mary
  85. physics

    A lead ball is dropped into a lake from a diving board 5.24 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.86 s after it is dropped. (Assume the positive

    asked by Nick
  86. geometry

    What's the circumference of a circle whose area equals 20x 3.14 cm squared in centimeters?

    asked by Cindy
  87. history

    Describe the developments and shifts in thought in Europe between 1450 and 1750. Use two of the following cultural movements to discuss the causes of the changes. Reformation Renaissance Enlightenment Scientific Revolution

    asked by Anonymous
  88. 10th grade Pre APworld history

    WHAT TYPE OF GOVERNMENT DID SHANG HAVE DURING 8000 B.C.E-600 C.E

    asked by Anonymous
  89. US Government

    Explain why this is false. The most striking change in the U.S. government has been the decrease in the scope of its activities.

    asked by Emma
  90. markings on jewelry

    i have a silver ring with a symbol on the inside the symbol is an upper case u with an arrow through it what does it mean?

    asked by cindy
  91. social studies

    this tiny country located on 90 degres east meridian is squeezed between china and india

    asked by NICOLE
  92. social studies

    as you move closer to the equator the temp. is ussually????

    asked by NICOLE
  93. math

    What is the equation of a circle with its center at (0,3) and a diameter of 6?

    asked by Anonymous
  94. social studies

    when listing a location of a place the degree of longitude is always listed???

    asked by NICOLE
  95. Physics

    a car travels 59.78 miles east in 89.67 minutes, then 89.67 miles north in 59.78 minutes, and then 29.89 miles at 59.78 degrees west of south in 149.45 minutes. whats the magnitude of the car's average velocity in miles per hour??? Please help!!!!!! P.S.

    asked by Autumn
  96. social studies

    this large sea is acctually a lake and is located at 40 north and 50 east

    asked by NICOLE
  97. chemistry

    mole can be abreviated as mol right??

    asked by lyne
  98. palmerston

    the trees bent in the wind.(and) their leaves fluttered. need to join these sentences together by using and

    asked by anne
  99. math

    4x+y/2+z/2=1/2

    asked by Chandana
  100. Math

    How do you solve (1/x)=c+(1/b) for x?

    asked by AJ
  101. English

    1. Do you have any problem? 2. Do you have any problems? (Are both OK? Which one is popular?) 3. It is very cruel of him to kill a dog. 4. A dog is very cruel of him to kill. 5. He is very cruel to kill a dog. 6. How cruel of him to kill a dog! 7. How

    asked by John
  102. natural disasters

    how can the magnatic record inside a valcanic roskbe used to determine the latitude at which the lava cooled?

    asked by samuel
  103. environmental management

    Will gaseous ammonia at 132 degree C liquefy when 100 atmospheres of pressure is applied to it? Why or why not?

    asked by angie
  104. college(natural disasters)

    How can the magnatic record inside a valcanic roskbe used to determine the latitude at which the lava cooled?

    asked by samuel
  105. home ec

    As chief officer of the Northwest Veterans' Home, you are preparing for a very important meeting with the Joint Budgetary Committee. The purpose of the meeting is that you will request additional funds to operate the Northwest Veterans' Home. You will have

    asked by righteous dude
  106. general maths

    A study of motor vehicle rates in the 50 states reveals that traffic death rates (deaths per 100 million motor vehicle miles driven) can be modeled by the normal curve. The data suggest that the distribution has a mean of 5.3 and a standard deviation of

    asked by maths
  107. Physics

    Vector A has a magnitude of 48 cm and is directed toward the East. Vector B has a magnitude of 21 cm and is directed toward the West. Find the resultant vector with direction. Help please!!!!

    asked by Manuel
  108. English

    has any 1 read the novel called, "The House that was Eureka"? if so can u pls tell me what are examples of 'use of violence to resist injustice'. i need it for my english essay. plus i also have to mention the modern world's use of violence to resist

    asked by girl
  109. Math

    How would you solve (a-2)/(a+3)=3/5 for a?

    asked by AJ
  110. Math

    i am a four digit number. all of my digits are different. my first digit is twice my fourth digit. my second digit is twice my first digit.my last digit is twice my third digit. the sum of my digits is 15. what number am i?

    asked by Nicholas
  111. Physics

    a car travels 59.78 miles east in 89.67 minutes, then 89.67 miles north in 59.78 minutes, and then 29.89 miles at 59.78 degrees west of south in 149.45 minutes. whats the magnitude of the car's average velocity in miles per hour??? Please help!!!!!! P.S.

    asked by Autumn
  112. com220

    What makes the arguments so viable and compelling in the article a nation apart

    asked by luna
  113. Chemistry

    In ionic bonding, an electron is transferred from one nucleus to another. What I don't understand, is how this "bonds" the two atoms together. Why don't the two atoms just bounce away and float off after the electron transfer takes place?

    asked by Alex
  114. ENG

    use of violence against injustice in today's society?

    asked by girl
  115. physic

    Jules Verne in 1865 proposede sending men to the moon by firing a space capsule from a 220-m-long cannon with final velocity of 10.97 km/s. what would have beed the unrealistically large accelerationexperienced travels during launch? compare your answer

    asked by Laura
  116. Chemistry

    How many glucose molecules does an E coli cell contain if it has an internal glucose concentration of 1.0 mM. The E coli is a cylinder that is 2 micrometers long and 1 micrometer in diameter. Really stuck on this one, thanks for the help!

    asked by Janae
  117. Chemistry

    The DNA of an E coli cell measures 1.4 mm in length, when extended and 20 angstroms in diameter. a) Calculate the volume of DNA in an E coli cell in cm^3 b) What fraction of an E coli cell is occupied by its DNA? c) A human cell is typically spherical with

    asked by Janae
  118. english

    Which of these is a simple sentence and why? 1) Karen and David arrived at the airport at 3:35 p.pm and took a taxi to their hotel. 2) I went to the airport, but I was too late to meet them. 3) When I realized I was too late, I called David's cell phone

    asked by Al
  119. English

    1. - What's wrong? - I have an important exam tomorrow. - Don't worry too much. (Is the short dialogue grammatical?) 2. Food also can help people's feelings. 3. Food can also help people's feelings. (Which one is correct between 2 and 3? Are both OK?) 4.

    asked by John
  120. physics

    The diameter of the earth is about 7.6 x 10^3 miles. What is the linear velocity of a person, on the equator, in feet per second?

    asked by Some kid
  121. biol.gy

    If a child has an autosomal dominant trait, what can you say about the parents?

    asked by girl
  122. algebra

    Solve using the addition and multiplication principles. 8-8y-5y < 47

    asked by Linda
  123. literature

    What are the parts of speech to each word in this sentence: I like the movie Clueless its based on Jane Austens novel Emma.

    asked by Kristin
  124. US Government

    can soemeone please help me with this one? Take the four ideas behind ELITISM/ELISTIST government – Marx; Weber; Mills; and pluralism. All four have relevance to American government and politics today. For EACH of the four, define/describe it and then

    asked by Emma
  125. science

    what soil is bad for wind ersion?

    asked by joy
  126. Economics

    Describe how the government intervenes to protect public health, safety, and well-being.

    asked by Anonymous
  127. science

    Please explain photosynthesis.

    asked by blish
  128. math

    What is the equation of a circle with its center at (0,3) and a diameter of 6. Answers: a. x^2+(y+3)^2=9 b. x^2-(y-3)^2=9 c. x^2+y^2-6y=0 d. x^2+(y_3)^2=0 e. x^2+(y-3)^2=36

    asked by Anonymous
  129. geogrophy

    i've got hw about map and in box options are given of longitute and latitute one is 35 (degree) sign and then 90 n now my Question is that i got it about 35 what about 90? plz help

    asked by blish
  130. english

    what was the plot for the book twisted?

    asked by emily
  131. Geometry

    With exacty seven horizontal or vertical jumps, remove all seven red checkers leaving the single black checker. There's 8 pieces on a grid, the black is in A1 and and reds are in A2 A3 A4 B1 B2 B3 B4.

    asked by Dallas
  132. math

    A manatee swimming 3 feet below the water surface, ascends 2 feet, descends another 5 feet then ascends another 2 feet. Write an expression to find his position relative to the water surface. Then find His position

    asked by red
  133. math

    what is 1119 rouned to the nearest 19 tenths?

    asked by cindy
  134. chemistry

    I need help doing the work, I think something might be wrong. How many glucose molecules does an E coli cell contain if it has an internal glucose concentration of 1.0 mM. The E coli is a cylinder that is 2 micrometers long and 1 micrometer in diameter.

    asked by Janae
  135. mathematics

    Draw a graph of the mirror line y=x, the function f:x 3x+2 and its inverse f`1 x x-2/3, for the domain of x, -2

    asked by trina
  136. Physical Education

    What is a simple definition of Social Health.

    asked by Olivia
  137. Science

    A ball thrown from the edge of a 35m high cliff takes 3.5s to reach the ground below. What was the ball's initial velocity?

    asked by Nick
  138. chemistry

    - What fraction of an E coli cell is occupied by its DNA? How would I find the fraction? If I knew the volume of an E coli cell, would I divide that by the volume of DNA in an E coli cell? - A human cell is typically spherical with a diameter of 20

    asked by Janae
  139. Math (Dr. Russ)

    Ok thanks i understand all of that but how did they come up with the value 4 in between 0 and 8?

    asked by trina
  140. french

    make a story with the following words;michel,jeune garcon,aimer beaucoup voyager,rencontrer un amie,partir un voyage ensemble,visiter beaucoup de villes,une ville bizarre,tout est grand,aller voir leur roi visiter un tres grand chateau,passer un an,revenir

    asked by Anonymous
  141. Reading

    In the story Alexander Who Used To Be Rich Last Sunday what did Nicky tell him to do with his dollar?

    asked by Jacob