Questions Asked on
August 31, 2007

  1. Calculus

    Use the position function s(t)=-4.9t^2+ 150, which gives the height (in meters) of an object that has fallen from 150 meters. Teh velocity at time t=a seconds is given by: lim as t approaches a s(a)-s(t) divided by a-t a) find the velocity of the object

    asked by Leah
  2. Physics please clarify

    A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.135 m). The charges on the circle are -3.20 µC at the position due north and +5.00 µC at the position due east. What is

    asked by Mary
  3. Physics

    I don't really understand this aspect of physics yet, I need help understanding these problems. Problem One: Two particles, with identical positive charges and a separation of 2.00 10-2 m, are released from rest. Immediately after the release, particle 1

    asked by Jim
  4. Microeconomics

    Two centuries ago there were more buffalo than cattle in the United States. Even though millions of cattle are killed for beef consumption each year, the catttle population continues to grow while the buffalo are virtually extinct. why? Explain in

    asked by Jennie
  5. English-Beowulf

    Who is Scyld? Where is he from? Where does he go? What does he do? Why does the poem begin here rather than with Hrothgar and Grendel? Scyld id Beowulf's father. Scyld was a Danidh king from the Scandion Lands. Scyld leaves to protect Lord Frea where he

    asked by Audrey
  6. Analytical Chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk:
  7. chemistry

    The phosphorus in a completely dried fertilizer sample weighing 0.4498 grams was precipitated as MgNH4PO4*6H2O. The precipitate weight was determined to be 236.8 mg and ignited to Mg2P2O7. The weight of the ignited precipitate was 268.9 mg. Calculate the

    asked by smiley
  8. physics

    1:Negative clipping of an output signal occurs when the A. output impedance is too high. B. input impedance is too high. C. input amplitude is too high. D. power supply voltage is too high. 2: Which of the following is essential for the operation of an

    asked by manny
  9. science(chem)

    CH3CHClCH2Cl vs. CH2ClCHClCH3 How would I know if : -The two formulas represent different compounds which are constitutional isomers. -The two formulas represent different compounds that are not isomeric. -The two formulas represent the same compound. ~if

    asked by ~christina~
  10. math

    What does "range" mean? thanks =o)

    asked by Joy
  11. Physics

    please tell me where I went wrong. A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 5.0x 10^-23 kg m/s from 1.4x 10^-23 kg m/s in a time of 6.5x 10^-6 s. What is the

    asked by Mary
  12. ESL

    Which one is right: Do you need any sugar or Do you need a sugar?

    asked by Yasmin
  13. science (chem)

    I have a problem drawing this formula. CH3CH2CH2CH(CH3)CCCH3 The problem is the 2 c's next to each other. I don't know what that's supposed to look like since if it's 1 CH like with the bracketed CH3 it would be connected to that C but I'm confused as to

    asked by ~christina~
  14. Algebra

    Complete the order pairs so each is a solution for the given equation 3x + 4y = 12 these are the numbers ( ,3) ( ,3/4) ( ,0) and (8/3, ) need to fill in the missing numbers

    asked by Karen
  15. Chemistry

    What is he differeence between a graph representing data that are directly proportional and a graph of data that are inversely proportional?

    asked by Amanda
  16. chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk:
  17. english beowulf

    Who destroyed the Heorot and how? My answer: I think Grendel destroyed the Herot but I am not sure how. This story is hard to comprehend!

    asked by Audrey
  18. Science

    A man drinks a bottle of beer and proposes to work off its 460 kj by exercising with a 20 kg barbell. If each lift of the barbell from chest height to over his head is through 60 cm and the efficiency of his body is 10 percent under these circumstances,

    asked by Michele
  19. Algebra

    when x number units are sold, the price of each unit (in dollars)is given by P = -x/2 + 75, find the unit price when the quantities are sold: 2,7,9,11

    asked by Karen
  20. race

    In your opinion, is it difficult to accurately measure prejudice? Why or Why not? Describe other measurements sociologists use to calculate prejudice.

    asked by lorraine
  21. math

    Here's an algebra question I need help on. I just need someone to explain how to get started...you don't have to solve it for me. I just don't know how to get the answer! Greta has a vegetable garden. She sells her extra produce at the local Farmer's

    asked by Nessa
  22. analytical chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk:
  23. Spanish

    Can someone help me translate this sentence? It was in a packet we were given for reading but I don't think I'm understanding it correctly. La crisis del Imperio Romano facilitó la invasión de España a partir del año 409 d.C., por varios pueblos

    asked by Kelly
  24. human services

    what would be some examples for theoretical models?

    asked by alley
  25. Effects of Religion

    • Religion can affect people in many different ways. List at least two effects that organized religion has had on society and give examples from past and/or present world events that illustrate your examples.

    asked by R. MADERA
  26. Algebra 1

    Write the equation of the line with slope -2 and y-intercept (0,0).Then graph the line.

    asked by Cynthia
  27. MATH

    I NEED HELP WITH A CAT AND WHISKER BOX THING I JUST NEED AWAY TO LEARN AN EASIER WAY TO DO IT CAN YOU HELP !!!!PLEASE!!!!!

    asked by ONEOFMANYBOB'S
  28. Algebra

    Celsius temperature readings can be converted to Fahrenheit readings using the formula F = 9/5c + 32, what is the Fahrenheit temperature that correspond to each of the following celsius temperatures: -10,0,15,100

    asked by Karen
  29. ethnic class

    1) according to pyne, how have post 9-11 government responses affected prejudice and discrimination against muslims,arabs,and related groups? (2) List two to three characteristics of orientalism. How may orientalism and prejudice contribute to hate crimes

    asked by rammunation
  30. Grammar

    I would like for someone to check this and make sure that I have this right. I had to rewrite the sentence that was not righ. Dangling Modifiers: If your baby dow not like cold apple juice, it should be heated. Your answer: If your baby does not like cold

    asked by mcn
  31. Algebra 1

    Complete the ordered pairs for the equation 2x+y=10.(5, ),( ,10),( ,-2), (0, )

    asked by Cynthia
  32. english

    Alzheimer's Something i became more aware of was Alzheimr's Disease.This disease gradually destorys a person's memory and ability to learn and carry behavior . There aren't any cures for the Alzherimer diease and researchers can't predivt how fast somewill

    asked by nancy
  33. Finance

    Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she should, but over

    asked by JERYL
  34. chemistry

    how would I determine the hybridization of the carbon atom if it has 3 single bonds with hydrogen and no free electrons? Do I draw this out??

    asked by ~christina~
  35. esl

    Is there any mistake in my sentence? Q: I get up always early?

    asked by naila
  36. lae school

    a storm front went through and the temperature dropped 10celsius in 3hr. If the temperature started at 6celsius, what was the temperature after the 3hr?

    asked by ray
  37. physics

    How do i go about this problem? a car starts from rest at a constant velocity and reaches a velocity of 25 m/s when it reaches 180 meters. What will be the velocity when it continues another 95 meters? Thanks

    asked by manny
  38. Accounting

    How do I entry a provion Its an Asset ?

    asked by Daniel
  39. Science

    Hello, where could I find the answer to this question? In which season would we expect to see the highest and lowest and why. Thanks

    asked by chris
  40. Chemistry

    I am a teacher and we did an observational activity in which we placed salt and food coloring on a big piece of ice. We observed it using a flashlight for awhile. Afterwards when we turned the lights on the salt with RED food coloring had a beautiful green

    asked by Debbie
  41. chem

    Is it easier to separate substances from concetrated or dilute solutions?

    asked by manny
  42. history

    When and where did people still believe the world is flat? I thought they did in Columbus's time, but I guess that was a myth? According to the page I read on wikipedia people believed the world was flat mostly only during the Classical Antiquity. But in

    asked by Lillian
  43. calculus

    We were asked to solve the problem 1/x < 4. I solved it like so: 1

    asked by Kelly
  44. Projects

    PLZ HURRY AND ANSWER THIS Q!!! I DON'T HAVE MUCH TIME LEFT TO DO MY PROJECTS!!!! Q: What are the rates of going to the Great Smokey Mountains?

    asked by ~~Lily~~
  45. calculus

    how would you find an equation for a circle that passes through the origin and has intercepts equal to 1 and 2 on the x and y axes

    asked by Anonymous
  46. english

    edit this paper Alzheimer’s Something I became more aware of was Alzheimer’s Disease. This disease gradually destroys a person ’s memory and ability to learn and carry out daily activities . In the long term it ,effectively changes your personality

    asked by nancy
  47. Developmental Language

    Is this an example of underextension or an example of overextension: Davis went to the park with his Dad and their dog,Sport. Davis saw lots of other dogs,pointed at them,and said, "Sport." Was Davis showing underextension or overextension?

    asked by Skylar
  48. follow up(for Count Iblis)

    i have a follow up question for a previous post How do you know 2B is (20 "+" B) and not (2 "x" B) _______________________________________ to me this question does not make sense... it comes from a review packet for the SAT

    asked by manny
  49. ESl

    Which one of the following is right? - I don't have much furniture in my apartment or - I don't have many furniture in my apartment

    asked by Wali
  50. math

    How can ou change numbers into percents then into degrees? For example the number is 90. Percent is ? Degree is ?

    asked by Brenda
  51. Esl

    Are these correct sentences? Q1: I hate clean the house. Q2: He's having two good friends.

    asked by Wali
  52. PROJECTS

    What are some fun places to go to in VA? Please name 2-4.

    asked by ~Lils~
  53. Projects

    Hi! Good Morning! Q: What are the rates of taking a tour in the "Arbingdon Vineyard and Winery?" It's for my project. :) The Vineyard and Winery are in Arbingdon, Virginia. Thanks!

    asked by ~~Lily~~
  54. chemistry

    Please help me through this problem... A 0.5117 gram fertilizer containing phsphorus was oven dried. The weight of the dried sample is 0.4998 grams. However, 10% moisture is still retained in the sample. Calculate the moisture content in the sample in as

    asked by smiley
  55. math

    to me this question does not make sense... it comes from a review packet for the SAT _______________________________________ Q: If 299 is divisible by 2B, and B represents a positive digit, what is the value of B? a.) 2 b.) 3 c.) 4 d.) 6 e.) 9

    asked by manny
  56. grammar

    What is a pargraph break

    asked by babygurl
  57. PERSONAL FINANCE

    Bernie and Pam Britten are a young married couple beginning careers and establishing a household. They will each make about $50,000 next year and will have accumulated about $40,000 to invest. They now rent an apartment but are considering purchasing a

    asked by JERYL
  58. math

    Add 3.03 + (–2.05) Thank you

    asked by sandy
  59. PROJECTS

    What are the rates of going to "Lexington Lanes: Bowling Center?" Or if you can't find it, what are the average costs of: 1.) rental bowling shoes 2.) Open Play to the public?

    asked by ~Lils~