Questions Asked on
August 17, 2010

  1. Chemistry AP-Density

    The density of osmium is 22.57g/cm3. If a 1.00kg rectangular block of osmium has two dimensions of 4.00cmx4.00cm, calculate the third dimension of the block.

    asked by Victoria
  2. Chemistry

    Any help would be great on the below problems. I am not sure where to begin. How do I solve these? Do I use a formula? 1. You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute is 18.0M. Describe how you

    asked by Ashley
  3. Precalculus

    If c= 16 and B= 67 degrees, find a.

    asked by Danielle
  4. chem

    What are the similarities and differences between the hydrogen atom 2s and 3s orbitals? a) What are the similarities and differences between the hydrogen atom 2s and 3s orbitals? b) What are the similarities and differences between the 2s orbital and a 2p

    asked by gabyj
  5. physics

    the small 2kg block A slides down the curve path and passes the lowest point B with a speed 4 m/s. If the radius of the curvature path at B is 1.5 m, determine the normal force N exerted on the block by path at this point. Is knowledge of the friction

    asked by samad
  6. statistics

    Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced

    asked by Karen
  7. Allied Health

    According to the AMA, what is the key reason behind a physician's duty of confidentiality to a patient? A. The U.S. Consititution requires a physician's confidentiality. B. The patient will feel more confident in disclosing information to a physician. C.If

    asked by Harv
  8. Calculus 2b

    A car drives down a road in such a way that its velocity ( in m/s) at time t (seconds) is v(t)=1t^(1/2)+1 . Find the car's average velocity (in m/s) between t=2 and t=6. ? I am lost!

    asked by Mary
  9. verbs

    In heaven there are many mansions. "are" is the verb right

    asked by erik
  10. chem

    A small “coffee cup” calorimeter contains 110. g of H2O at 22.0°C. A 100. g sample of lead is heated to 90.0°C and then placed in the water. The contents of the calorimeter come to a temperature of 23.9°C What is the specific heat of lead?

    asked by gaby
  11. home inspection

    which of the following is the best reason for a home inspector to have a set procedure for the inspection process. keeps the inspector in control of the client helps the inspector gain assignments from real estate attorneys helps the

    asked by sib
  12. statistics

    2. Assume that the population proportion of adults having a college degree is 0.35. A random sample of 200 adults is to be selected to test this claim. A) What is the shape, mean, and standard deviation of the sampling distribution of the sample proportion

    asked by Natasha
  13. sentence structure

    which conjunction word would best combine the two sentences together. then or until. i would prefer "until" is that ok For centuries people ate with their hands. A change finally occured in the 1100's when people used utensils.

    asked by Amy
  14. verbs

    A signed warned drivers about falling rocks along the street. in this sentence would the only verb be warned because falling is an adj describing rocks

    asked by erik
  15. chem

    (a) Arrange the following pairs of covalently bonded atoms in expected order of increasing bond polarity: C-N, P-Cl, I-Cl, and C-O. (b) for each pair, indicate the direction of the polarity of the bond, using the symbol +.

    asked by gabyj
  16. math

    For a certain experiment, a student requires 100 cubic centimeters of a solution that is 8% HCI. The storeroom has only solutions that are 15% HCI and 5% HCI. How many cubic centimeters of each available solution should be mixed to get 100 cubic

    asked by Mary
  17. Write the equations

    Write the equations that show the processes that describe the first, second, and third ionization energies of a tellurium atom.

    asked by gabyj
  18. Geometry

    AM is a median of a triangle where A is one vertex and M is the midpoint of a side of a triangle opposite vertex A. If the distance from the centroid of the triangle to M is 5 units, how long is the median AM I have: The centroid, is the balance point, or

    asked by Brendan
  19. statistical psychology

    Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

    asked by Anonymous
  20. statistics

    What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not OK. That I am 95% sure

    asked by Karen
  21. business law

    The following question requires you to write an answer in paragraph form. Fidelity Mortgage sells a mortgage on Doug Quicksilver's home to Enterprise Bank. Enterprise erroneously pays the real estate taxes on the home. When Enterprises demands

    asked by neejoo
  22. algebra

    Find the variation constaant and an equation of variation where Y varies directly as X and Y = 72 hen X = 8 The variation constant is K = ? The equation of variation is Y = ? I think that K = 9 but not sure I don't have a clue about the rest.

    asked by Lori
  23. chemistry

    What happens when 4ml of 1M HCL is added to 100ml buffer made using 5ml 1M Na2HPO4 and 5ml 1M NaH2PO4? The pKa for H+ + HPO4- = H2PO4 is 6.82.

    asked by matt
  24. American Government

    the principle of checks and balances is based on the noion that

    asked by Anonymous
  25. Algebra 2

    Find the value of K so that the point P lies on the line L. 1. P(2,1), L: 3x + Ky = 8 2. P(2,2), L: Kx + (K + 1)y = 2 Help me i have no idea how to do this! :[

    asked by Jessica
  26. 8th grade

    robert has a piece of twine 3/4 yards long. he needs a piece of twine that is 2/3 of this length. how long of a piee of twine does robert need?

    asked by natalie
  27. math

    A rectangular Persian carpet has a perimeter of 240 inches. The length of the carpet is 30 inches more than the width. What are the dimensions of the carpet? Use P = 2L + 2W.

    asked by James
  28. capitalization

    i have a doubt if "the" should be capitalized in this sentence: Thomas Jefferson wrote the Declaration of Independence for our country.

    asked by lara
  29. Algebra 2

    how do i do these problems???? Graph each pair of equations in the same coordinate plane. Find the coordinates of the point where the graphs intersect. Then show by substitution that the coordinate satisfy both equations. 1. 2x + 5=0 2x + y=8 Graph each

    asked by Jessica
  30. Algebra

    If a pro basketball player has a vertical leap of 25 inches, what is his hang time? Use the hang time function V = T^2 Hang time is _________ seconds. Simplify the answer. Type an integer or a decimal Round to the nearest tenth. The answer I came up with

    asked by Lori
  31. physics

    A 120-V motor has mechanical power output of 3.00 hp. It is 94.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. I got the same answers,17.5 A, whether I used round

    asked by blast
  32. Earth Sciencs

    What are the different types of seafloor sediments and what are the factors that control the distribution of each major sediment type? Where does each major seafloor sediment type tend to accumulate in greatest quantity?

    asked by Rich
  33. biology

    how does caffeine affect the excretory system? I have looked all over, and I can't find an answer. Please help!

    asked by blue fire
  34. Computer programming

    Sorting is a common operation used in programming. Although languages such as Visual Basic 2008 offer built-in methods for sorting, other languages such as C do not support such a method. In order to be a programmer you should be able to implement such

    asked by Brenda
  35. physics

    To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights and hot water when they are not being used, and keeping thermostats at a moderate level. In this chapter, we also speak of “energy conservation.”

    asked by Anonymous
  36. physics

    Suppose that three astronauts outside a spaceship decide to play catch. All the astronauts weigh the same on Earth and are equally strong. The first astronaut throws the second astronaut toward the third one and the game begins. Describe the motion of the

    asked by Anonymous
  37. business communications

    In which of the following situations is it MOST appropriate to deemphasize negatives? When the reader must correct a dangerous practice When you are denying a customer's request for credit When you are fining a company for polluting the environment When

    asked by latonia
  38. physics

    A jetliner, traveling northward, is landing with a speed of 72 m/s. Once the jet touches down, it has 730 m of runway in which to reduce its speed to 5.9 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the

    asked by yoyoma
  39. math

    Place decimal points in these numbers so that their sum is 519.654. 329 913 477 624

    asked by Kellie
  40. Algebra

    The second angle of a triangle is 3 times as large as the first. The third angle is 55° more than the first. Find the measure of the smallest angle

    asked by James
  41. bus/415

    What is the chronological order of the major legislation that makes up the history of employment law in this country? For each law, state the social problem the law was designed to address, and discuss how employment law has affected the workplace in the

    asked by Shelly
  42. chem

    For each of the following pairs, which element will have the greater metallic character: (a) Li or Be; (b) Li or Na; (c) Sn or P; (d) B or Al?

    asked by gabyj
  43. home inspection

    in a property transaction the homeowner increasingly has a legal responsibility to? all the inspection fees B.disclose all information on the home's condition to interested buyers any and all problems found during the home inspection

    asked by sib
  44. physics

    A 120-V motor has mechanical power output of 3.00 hp. It is 94.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the energy delivered to the motor by electrical transmission in 2.00 h of operation. Do

    asked by blast
  45. social studies

    The growth of the automobile industry led to the development of the

    asked by shakyta
  46. Write the shorthand notation

    Write the shorthand notation and the orbital diagram electron configuration representation for each of the following elements and indicate the orbital(s) which contain valence electrons: (a) N, (b) K, (c) Cu, (d) Al.

    asked by gabyj
  47. Calculus

    find the area of the region. 2y=4sqrtx , y=3 and 2y+2x=6 ?

    asked by Candice
  48. Math

    If f(x)=x^2-6x+14 and g(x)=-x^2-20x-k, determine the value of k so that there is exactly one point of intersection between the two parabolas.

    asked by Emily
  49. which quantity will be greater

    For strontium, which quantity will be greater, the difference between I1 and I2, or the difference between I2 and I3? Explain

    asked by gabyj
  50. precalculus

    If A= 29 degrees and a= 4.6, find c.

    asked by maria
  51. physics

    It is falling. It has to fall, that is the law of gravity. Otherwise, it would leave Earth in a straight line. But if it falls at exactly the rate it needs to fall to travel in an orbit, we call that "orbiting". If if falls faster than that, it crashes

    asked by Anonymous
  52. Calculus 2b

    Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=x^2 x=y^2 about the axis x=–3 ? Having Trouble please help!!

    asked by Mary
  53. geometry

    find one counterexample to show that each conjecture is false : 1. the sum of two numbers is greater than either number ? help please!!!

    asked by kayla
  54. math

    I really need help with math test. I can't post questions on here cause they won't cut and paste right. Is anyone willing to send their email and I will send them the test for help? It was due sunday and I am so lost

    asked by julian
  55. US History

    For Booker T. Washington v W. E. B. DuBois, I don't get DuBois' method... did he want African Americans to gain rights right away?

    asked by Amy~
  56. Physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.10 m/s2. How fast is the racer moving 2.55 102 m after the parachute opens?

    asked by yoyoma
  57. International Business

    Why does Logitech manufacture in China and Taiwan, undertake basic R&D in California and Switzerland, design products in Ireland and coordinate marketing and operations from California?

    asked by Stacy
  58. math

    Solve the problem. If the answer is an amount of money, round to the nearest dollar. A chemical solution contains 3% salt. How much salt is in 4.5 ml of solution?

    asked by Sarah
  59. business

    In a world without trade, what would happen to the costs that American consumers would have to pay for Logitech's products, i.e mouse?

    asked by Lucy Brown
  60. Computer programming

    Functions and procedures are used all the time in Modular programming. Can functions replace procedures? what are the advantages of using functions over procedures? Are there any advantages to using procedures over functions?

    asked by Brenda
  61. Computer programming

    The code below is supposed to calculate the average for a student using 10 grades. It contains several errors. Rewrite the code using the correct naming conventions and turn in the full solution and discuss using this topic. Dim arrGrades(10) as integer

    asked by Brenda
  62. geometry

    Center and radius of x^2 + y^2 – 4y = 0.

    asked by Ray
  63. US History

    For Booker T. Washington v W. E. B. DuBois, I don't get DuBois' method... did he want African Americans to gain rights right away?

    asked by Amy~
  64. Why does the He atom have a smaller radius than th

    (a) Why does the He atom have a smaller radius than the H atom? (b) Why is the He atom smaller than the Ne atom?

    asked by gabyj
  65. Math

    How do I find the extreme values for the function y=sinx+cosx on the interval 0

    asked by Kayla
  66. Math

    Ok I need help to figure out how to solve this problem 4 working move into town looking for work. A local business offers them 200 hours of work. The catch is, they have to work the same number of hours as they do days. I.E. if they work 8 hours they have

    asked by Mo
  67. calculus

    The total area enclosed by the graphs of y=10x^2–x^3+x y=x^2+19x This is a really long problem I keep getting the answer of 20.25 but it is incorrect I don't know where I am going wrong?

    asked by Jane
  68. Statistics

    How many ways are there to choose a three-digit lottery number? Note that numbers like 003, 014, 222, 232 or 123 are all allowed.

    asked by Sarah
  69. International business

    How does trade lower the costs of making computer peripherals such as mice and keyboards?

    asked by Marquel Brown
  70. Numbers

    How would one say .05mm? Is it "five hundreths of a mm"?

    asked by Sam
  71. algebra math 209

    swimming space. The length of a rectangular swimmung pool is 2x-1 meters, and the width is x+2 meters. write a polynomial A(x) that represent the area. Find A(10)

    asked by Anita fields
  72. sentence structure

    need help making sure how to write this sentence. I will not be ashamed of my Lord and Savior, Jesus Christ. I will not be ashamed of my Lord and Savior Jesus Christ.

    asked by Amy
  73. programming

    An instructor wants to build a program to help him keep track of students’ grades. He’s assuming he won’t have more than 30 students and won’t have more than 2 exams from which he’ll calculate the average. How many arrays do you think he needs to

    asked by Brenda
  74. sentence structure

    does my first sentece have the correct use of a comma? If i believe in Jesus Christ, i will be saved. If i believe in Jesus Christ i will be saved.

    asked by Amy
  75. geometry


    asked by Anonymous
  76. ecom

    How does the federal government implement its fiscal policies? Given economic conditions today, do you suggest expansionary fiscal policy or contractionary fiscal policy? How would your suggestions affect production and employment? Why?

    asked by terry
  77. US History II

    Why was it called black "resistance" during the Civil Rights Movement?

    asked by Amy~
  78. statistics

    GIVEN THE FOLLOWING STATISTICAL VARIABLES A:m(A)=5 B:m(B)=13 var(A)=25 Var(B)=6 1.calculate mean of Z= 4B-2A 2.Calculate the Standard Deviation assuming cov (A,B)=0

    asked by RASHMI
  79. U.S. history

    It's been 5 years since Hurricane Katrina devastated the city of New Orleans and the Gulf coast. The city has not fully recovered from the effects of that storm, right? The Big Easy was flooded with polluted water and sewage, many people were killed, and

    asked by AL 92
  80. econimics

    Ally mows lawns for a living. Ally's out-of-pocket expenses(for equipment, gas,and so on) plus the value that she places on her time amount to what?

    asked by austin
  81. scicnec

    An earth satellite in an elliptial orbit moves with a) slower speed as it ages b) none of the above c) constant speed d) faster speed as it ages Just need to know if my answer or right or wrong. Thanks! :) d

    asked by ant
  82. science

    The earth and all the planets______(or travel around) the sun. Just need to know if my answer or right or wrong. Thanks! :) orbit

    asked by ant
  83. college math

    can I email someone my test that I need help with? I could really use the help. Thanks

    asked by Anonymous
  84. geometry

    Find the area of a square given that the length of each of its sides is 1/4 the value of its area.

    asked by Keith
  85. Nutrition

    How do lipids move through the body do they can be digested and absorbed? How are lipids stored in the body?

    asked by Nancy
  86. Wi-Fi

    How does a child or maybe an adult get sick because of Wi-Fi signals? That's very, very odd.

    asked by AL 92
  87. accounting

    I am calculating inventory methods and wanted to see if anyone could double check my figures? See below weighted Average Date Transaction Units 1-Apr Purchase 250 Unit Cost Ext Cost 5-Apr Sold 10 $10.00 2500 10-Apr Sold 10 15-Apr Purchase 200 $15.00 3000

    asked by Debbie
  88. International Business

    Using the theory of comparative advantage how did logitech configure its global operations?

    asked by Erin Shed
  89. science

    Newton applied his laws of motion to the problem of the motions of the planets. He assumed that it was gravity that held them in their orbits, true false Just need to know if my answer or right or wrong. Thanks! :) true

    asked by ant
  90. Allied Health

    Which one of the following is an example of a leading question? A.What time did you administer the medication? B. How long have you worked at the West End Hospital? C. Did you see Dr. Martin in the patient's room on the morning of question? D. Isn't it

    asked by Harv
  91. computer

    True/False Is the order of mathematical operations applied to most computer languages are not relevant in pseudocode.

    asked by Tyriq
  92. medical office

    In reviewing the office's profit and loss statement, the office manager notices a discrepancy between the stated revenue and cash deposits. In fact, it appears the office may have incorrectly booked $250,000 in revenue for the month. If this error turns

    asked by Shauna
  93. math

    Construct a truth table for the statement. ~s ~q

    asked by Sarah
  94. math

    Express the ratio in simplest form. 120cm to 45cm

    asked by Sarah
  95. English

    What must you do to convert the annotated bibliography to an APA-formatted reference page

    asked by Anonymous
  96. chemistry

    Mix together 5.0 mL of solution #1 – 1.0 M HA with 35 mL of solution #2 – 1.0 M NaA in a small Erlenmeyer flask. What are the concentrations of HA and A– in solution #7?

    asked by kris
  97. math

    i need help with simplying algerbraic expression 1) m^2 p^2 + mpg - 6g^2 = 2) 2h^3 + 2h^2t - 4ht^2

    asked by kamleen
  98. science

    For any mass m located anywhere in the universe, F=mg is the formula that tells the gravitational attraction between m and the earth, true false Just need to know if my answer or right or wrong. Thanks! :) False

    asked by ant
  99. math

    how do I find x in this problem. x over 4 x minus 2 equals 8.

    asked by victoria
  100. Math

    Can you help me understand this math problem...I could figure it out the long way but I think there is a formula that I can use that I'm not remembering: I have 18 different colors of marbles. I'm going to arrange them in sets of three. I want to do this 6

    asked by GwendolynDuncan
  101. Math

    How many ways are there to choose a three-digit lottery number? Note that numbers like 003, 014, 222, 232 or 123 are all allowed.

    asked by Jeanne
  102. physics

    is electric field always positive?

    asked by blasting
  103. Algebra


    asked by Canyon
  104. childcare

    Please help. I posted this question before but did not seem to get an answer/ A child who moved from throwing a ball using only an elbow movement to thriowing a ball using her elbow, wrist and shoulder is showing signs of developmentn a. intertask b.

    asked by action
  105. college

    what does 'wrap around' and 'flop down' mean?

    asked by Alisha
  106. capitalization

    i have another doubt in this sentence with "son" one rule is to capitalize any title when used as a direct address. Jesus is the son of God.

    asked by lara
  107. math

    I am having trouble finding the x and y intercepts in this equation. Can someone please help me? y=-5-5x

    asked by barb
  108. algebra

    Are the inequalities x > 8 and -x < 8 equivalant? Why or why not?

    asked by Jackie
  109. science

    The earth's magnetic shield has a) appeared only recently b)disappeared for short periods of time c)caused the earth's land masses to drift apart d)little effect on life this planet e)existed since the planet cooled e

    asked by ant
  110. math

    i need help with operation with polynomial--------------------- 1) (x^2 + x - 6) / (x - 2)= 2) 24b^4C^3 / 6b^2c= 3) (3p^2 + pq - 2q^2)/ (p + q)=

    asked by kamleen
  111. Child Psychology

    what happens as children process into middle childhood?

    asked by Anonymous
  112. Algebra 1

    I am having trouble figuring out the final step when i get to multiply 5/9(1955.6) to get the set solution. Can you help. the question is below a metal stays solid at fahrenheit temperature below 1987.6. determine (in terms of an inequality) those celsius

    asked by Kallie
  113. US History

    Did the Civil Rights Movement bring in other people who had different types of resistance? OR did people use Martin Luther King's method?

    asked by Amy~
  114. science

    how does movement differs among Bacteria, grasshoppers, fish, bear

    asked by seth
  115. business strategy

    What were the key elements of JetBlue’s strategy in 2008? How has the company chosen to attract customers in sufficient volume to earn profits? How does JetBlue offer its customers value

    asked by Jorie
  116. Math

    How do I find the equation of a tangent of y=cos(2x+(pi)/3) at x=(pi)/4

    asked by Kayla
  117. Math

    How do I find slope of the tangent to the curve y=(e^x+e^-x)/2 at point (0,1)?

    asked by Kayla
  118. computer people

    Do you know any qoutes from Tony Fadell about the ipod? Thanks

    asked by taavon
  119. math

    what is the prime factorization of 34 in tree diagram method

    asked by asdfghjkl;
  120. math

    I don't know how y-1=-1/3(x-3) is simplifes to x+3y-6=0

    asked by Jin
  121. math

    Construct a truth table for the statement ~s (blank)~q.

    asked by Sarah
  122. computer people

    what is one of tony fadell's innovations of the ipod?

    asked by taavon the 3rd
  123. algebra math 209

    evaluating polynomials negative 12sq times 3s -12sq *3s

    asked by Anita fields