Questions Asked on
January 14, 2012

  1. Physics

    A mouse travels along a straight line; its distance from the origin at any time is given by the equation. x= (8.1 cm * s^-1)t-(2.7cm * s^-2)t^2 A) Find the average velocity of the mouse in the interval from t= 0 to t= 1.0 . value=?; unit= ? B)Find the

    asked by ben
  2. physics - Energy

    An ore car of mass 41000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 9.6 m lower vertically, is a horizontally situated spring with constant 4.7 × 10^ 5 N/m. The acceleration of gravity is 9.8 m/s^ 2. Ignore

    asked by rei
  3. Chemistry

    CH4 + 2O2 -> CO2 + 2H2O When 70 grams of oxygen react with methane, how many liters of CO2 gas are produced?

    asked by David
  4. physics

    A ballistic pendulum consists of a rectangular wooden block of mass 1.5 kg suspended from a ceiling. A bullet mass 0.025 kg undergoes a completely inelastic collision with the ballistic pendulum. Due to the collision the pendulum rises to a height of 45

    asked by joane
  5. physics

    a car of mass 500kg is moving at 24m/s. A lion of mass 100kg drops on to the roof of the car from an overhanging branch. Show that the car will slow down to 20m/s.

    asked by sepira
  6. socials

    what be the definition for sustainability that come in environment? I find that it be meeting the needs of the present without compromising the ability of future generations to meet their needs. but i not real understand what this means

    asked by Mohammad
  7. Physics

    Consider two objects, A and B, both undergoing SHM, but with different frequencies, as described by the equations xsuba= 2.0msin(2.0t) and xsubB = 5.0msin(3.0t), where t is in seconds. After t = 0, find the next three times t at which both objects

    asked by Viviana
  8. World History

    What was the cause of the peloponnesian war? A. Greeks sought revenge for the persian wars B. Sparta wanted control of the powerful athneian army C. Many greeks outside of athens resented athenian domination I got B. Around 700 B.C Athenians became unhappy

    asked by sarah
  9. lac english 1 a

    how are bario boy and no gumtion alike different In what ways are the authors’ choices and depictions related to the subject matter of their stories?

    asked by alexis
  10. OOP PROGRAMMING

    Write a program the inputs (from the user) the number of hours worked and hourly pay rate for employees and outputs their total pay. The program should process an arbitrary number of employees; the user will terminate input by entering 0 for hours worked

    asked by kim
  11. Liberal Arts

    Part 1: You finally made it…graduation day has arrived! Your parents are so proud that they are throwing you a HUGE party. They have rented a big tent for your graduation party just in case it rains. The inside of the tent (represented by the blue area)

    asked by Brittney
  12. Physics

    A mouse travels along a straight line; its distance from the origin at any time is given by the equation. x= (8.1 cm * s^-1)t-(2.7cm * s^-2)t^2 A) Find the average velocity of the mouse in the interval from = 0 to = 1.0 . value=?; unit= ? B)Find the

    asked by ben
  13. 3rd grade math

    water makes up 7/10 of your body. Is more than 1/2 of your body water? write a number sentence to compare 7/10 and 1/2. Explain

    asked by Carol
  14. drwls:precalc

    4x^2-9y^2-40x+36y+100=0 I still end up with the wrong answer. I end up with 4(x-5)^2/-120 - 9(y+2)^2=-120 9 can't go into -120 My procedure: (4x^2-40x)-(9y^2+36y)=-100 4(x^2-10x +4)-9(y^2 +4 +4)=-100+ 4(4)-9(4) 4(x-5)^2-9(y+2)^2=-120 (x-5)^2/-30 - ? 9

    asked by 95
  15. Physics

    Please show steps and thank you! An astronaut of mass 70 kg carries an empty oxygen tank of mass 14 kg. He throws the tank away from himself with a speed of 3 m/s. With what velocity does the astronaut start to move through space?

    asked by Anon
  16. chemistry

    LeChatelier's Principle !!!! ? plz help me with this problem the following reaction may be used to remove sulfur compounds from power plant smokestack emission. 2HS(g) + SO2 >>>> 3S + 2H2O ...... DELTA h = -145 KJ the value of the euilibrium constant for

    asked by klove12
  17. college mathematics1

    solve the system x+6y=24, -6x+5y= -21

    asked by Linda
  18. BUSINESS MATHS

    Payment was done on August 30 for the invoice below. Please fill in the blank for the missing quantities. Terms: 5/10, 3/20, n/30 Date: August 19 Quantity Description Unit List Price Total 5 Frying Pan RM25.00 each 5 Glass Jar RM25.00 each 10 Knife RM5.40

    asked by ABDULAI ABUS-SHAKUR
  19. operations management

    1. What trade-offs are involved in shifting from a traditional operations systems to a lean operating syatem for” a. manufacturing b. servicing 2. Who in the organization is affected by a decision to shift from a traditional to lean operating system? 3.

    asked by Anonymous
  20. physics

    Calculate Earth’s gravitational force on the Shuttle astronauts while orbiting at an altitude of 220 miles (or 354 km) above Earth’s surface.

    asked by cory
  21. precalc

    Write the equation of the ellipse in standard form: 4x^2-9y^2-40x+36y+100=0

    asked by 95
  22. History

    What was the goal of the League for Non-Violent Civil Disobedience Against Military Segregation? Did they succeed? Answer :The goal of the Nonviolent Civil Disobedience Against Military Segregation was to urge young men, both black and white, to refuse to

    asked by anonymous
  23. Algebra 2

    The perimeter of a rectangle RSTV is 44 ft. Find the least value of the diagonal RT.

    asked by Peter
  24. Math - Arithmetic Sequences

    The sum of the 4th and the 14th term of an arithmetic sequence equals 22. The 9th term is 4 larger than the 4th term. Calculate the first term of the sequence. I've been trying to solve this for like an hour but I just can't figure out how to do it! I'd

    asked by Max
  25. GED Math

    In the figure below, if the perimeter of triangle ABC is 48, what is the value of x?

    asked by Alma
  26. Chemistry

    A mixture of three gases has a total pressure of 1380 mm Hg at 25 degrees celsius. If the mixture contained 56 grams CO2, 3.04 mol CO and 9.03 X 10^23 atoms of Argon, the partial pressure of argon would be about? First I did 9.03e23 * 760/1 = 2.26e22 and

    asked by Hannah
  27. PHYSIC

    A SKATER IS ROLLERBLADING DOWN A SIDEWALK AT A VELOCITY OF 2.7 M/S. AS SHE APPROACHES AN INTERSECTION, SHE SLOWS TO A STOP OVER A 5.8 SECOND PERIOD. WHAT IS HER AVERAGE ACCELERATION?

    asked by GRISSELL
  28. PHYSIC

    A CHEETAH CAN ACCELERATE AT A RATE OF 8.0 M/S^2. ASSUMING IT STARTS FROM REST, WHAT WILL ITS VELOCITY BY AFTER 3.5 SECONDS?

    asked by GRISSELL
  29. Science

    How does water's oxygen content affect freezing point?

    asked by John
  30. intermediate algrebra

    Mr. Siglar is a famous speaker. He travels and gives an average of 8 speaches each week. Auditoriums are always full they have 2000 in each. he charges $15 each person. His average expenses for each presentation are 14,000. The cost of meals, jet travel,

    asked by Heather
  31. algebra

    Club A offers a starter fee for $17 plus a monthly fee of $11. Club B offers a starter fee of $23 and a monthly fee of $14. How many months untill the prices will be the same?

    asked by Rachel
  32. law

    . When using Shepard's Online, a red stop sign and a __________ yield sign suggest either negative treatment or the occurrence of legislative or court action relating to a statute. (Points: 5) red blue yellow white is it YELLOW

    asked by Andy
  33. physics

    the system is in static equilibrium. The coefficient of static friction between the block and the table's surface is = 1/3. The mass of the block that is hanging down is n1 Kg. The tangent of the angle shown in the figure is tan theta = n2. What is the

    asked by frank
  34. English

    Could you please tell me if the following sentences are possible? Thank you. The principal of my school has asked me to find an Irish school which would be interested in a Comenius partnership with our school, a French high school and a German high school.

    asked by Henry2
  35. Agricultural economics

    Would you characterize the market for food items in the US as purely competitive, monopolistic or oligopolistic?

    asked by Deberal
  36. physics - Energy

    A 0.280 kg block on a vertical spring with a spring constant of 4.12 × 10^ 3 N/m is pushed downward, compressing the spring 0.0600 m. When released, the block leaves the spring and travels upward vertically. The acceleration of gravity is 9.81 m/s^ 2. How

    asked by rei
  37. psy/300

    how does sensation and perception affect learning?

    asked by James
  38. Math Problem

    Please solve -4x ¡Ý -2.4

    asked by Lavern
  39. programming

    I need help in the TODO section. /** * Driver.cpp - This file contains the driver code to test the * linkedStackType class implementation * */ #include #include "linkedStack.h" using namespace std; template void printStack(linkedStackType& stack); template

    asked by Aleen
  40. Math

    Evaluate the given indefinite integrals. ∫ (x+2)(2x+3)^1/2

    asked by Jack
  41. Algebra 1

    Marks pet needs to eat at least 18 grams of fiber but less than 25 grams of protein each day. Mark gives his dog Food A and Food B throughout the day. Food A has 2 grams of fiber and 3 grams of protein in each serving. Food B has 4 grams of fiber and 1

    asked by Deb
  42. psychology statistics

    15. Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, (b) the Z

    asked by Anonymous
  43. Trig

    (x+3)^2/4^2 + (y-2)^2/5^2 The location of the Foci are at: a.(-3,-1) and (-3,-5) b. (-3,2) and (-3,5) c. (-3,-3) and (-3,7) d. (-3,1) and (-3,-5) I get (-3,2) and (-3,5) Am I correct?

    asked by Don
  44. Fine Art 7

    I have this assignment for my fine art class. You see my art teacher was telling us about Martin Luther King on how he is a good man and how he died and more. Do for homework we have to write a thank you letter to them. It doesn't have to be long. My

    asked by Laruen
  45. Algebra 2

    Find the equation of the parabola that goes through the given points. (1,2) (0,5) (-1,14)

    asked by Peter
  46. English

    Hi, i have to write an literary essay for The Great Gatsby and the topic is "IN THE GREAT GATSBY, THE AMERICAN DREAM IS PRESENTED AS A TRAP." Can you give me some advice on how to write it and how to start it with a really nice hook? Our teacher says the

    asked by Bonnie
  47. precalculus

    solve the inequality please x^4-6561>0 So far I have come up with x^4>9^4. I guess what's throwing me is the answer has to be in interval notation and for the life of me, I can't remember what that is! (for me, it used to be a blond moment - now I'm gray

    asked by Sara
  48. Geometric Sequence

    Find the fourth term (a4) of geometric sequence if the first term (a1) is 2 and the common ratio, r is 4.

    asked by Embraced
  49. Algebra II-Please check fpr explanation

    I have a question concerning this problem:I just want to make sure my formulas are correct before I do problem It is a hyperbola equation (y-4)^2/49 - (x-6)^2/72 = 1 1.It is a vertical hyperbola, correct? 2. the a^2 is 49, correct? 3. the b^2 is 72,

    asked by Graham
  50. precalc

    solve 5^y=4^y+3.Round your answer to the nearest tenth.

    asked by 95
  51. science

    how to draw a delivery device for golf balls

    asked by cheryl
  52. physic

    a car sits still at a red light. once the light turns green, the driver accelerates at a rate of 3.5 m/s^2. how far has the car moved after 6 seconds?

    asked by grissell
  53. statistics

    5. The ages of husbands and wives in a community were found to have a correlation coefficient equal to +0.8; the average of husbands’ ages was 25 years and that of wives’ ages 22 years; their standard deviations were respectively 4 and 5 years. Find

    asked by Deba
  54. PHYSIC

    THE MOON ORBITS THE EARTH AT A SPEED OF 1.02 KILOMETERS PER SECOND. USE DIMENSIONAL ANALYSIS TO CONVERT THIS SPEED INTO MILES PER HOUR.

    asked by GRISSELL
  55. 5 th grade algebra

    5a-a-2a=18

    asked by kennady
  56. Physic

    The moon orbits the earth a a speed of 1.02 Kilometers per second. Use dimensional analysis to convert this speed into miles per hour. is the answer .28 m/s????

    asked by Susie
  57. Physic

    A cheetah can accelerate at a rate of 8.0 M/S^2. Assuming it starts from rest, what will its velocity be after 3.5 SECONDS?

    asked by Melissa
  58. math

    Solve: 22x -1 plus 5 equals 15

    asked by jakia
  59. Chemistry

    A sample of chlorine gas at a pressure of 420 mm Hg and in a volume of 3.50L was heated from 18.0 degrees celsius to 45 degrees celsius after being transferred to a container of volume 2.35L. The pressure in this new container should be about? Would I use

    asked by Hannah
  60. physics

    What will be the magnitude of work if a force of 25N pulls a stone through distance of 5m in its direction ?

    asked by Hassan
  61. trig

    From the top of a hill 700 ft. high, an observer notes that the angles of depression of two successive markerstones on a level ground, which leads straight away from the hill are 5 degree and 15 degree respectively. Find the distance between the two

    asked by Grail
  62. Chemistry Ozone layer

    what is the ozone layer made out of because on differnt websites it says different things and i thought it was made out of the three types of oxygen O2 O3 and i don't know the last one but on other things it says differnt please help me

    asked by Anonymous
  63. precalculus

    given the following rational function f(x)= x^2+5x-7 / x-4 state domain, find vertical, horizontal and oblique asymptotes if any. I found the domain to be (-inf.,4)U(4, inf.) and vertical asymptote at x=4 am I right? can someone help me with the rest?

    asked by Sara
  64. algebra

    Including a 9% sales tax, an inn charges $127.53 per night. Find the inns nightly cost before tax is added

    asked by Rachel
  65. Physics

    A streetcar named Desire travels between two stations 0.59 km apart. Leaving the first station, it accelerates for 10.0 s at 1.0 m/s2 and then travels at a constant speed until it is near the second station, when it brakes at 2.0 m/s2 in order to stop at

    asked by Sarah
  66. law

    Review the sentence and determine which is correct. 1(a). The judge admonished the prosecutor and defense attorney who was distracting the jury from the facts of the case. OR 1(b).The judge admonished the prosecutor and defense attorney who were

    asked by Andy
  67. english

    what is mary e. wilkins freeman literary style of writing

    asked by lora
  68. law

    Review and revise the following paragraph. After reviewing al the pleadings the underlining records that party arguments; pertinent caselaw and statues and the other recommendations filed byt eh party's, this court remainsof the opinion and biew point that

    asked by Andy
  69. physics

    a book on a shelf 2.0 meters above the floor has a mas of 1.5 kilograms. what is the gravitational potential energy of the book.

    asked by Anonymous
  70. English

    Can you please tell me if the following sentences are correct? Thank you. Complete the second sentence so that it means the same as the first. 1) He went to bed two hours ago. He has been sleeping for two hours. 2) They have been chatting for one hour.

    asked by Henry2
  71. geometry

    How do you express the following value without exponents? (-243) 6/5

    asked by christy
  72. Chemistry

    According to the ideal gas law a 9.03 sample of oxygen gas in a 0.8112 container at 499k should exert a pressure of 456atm. By what % does the pressure calculated using van der waals equation differ from the ideal pressure? For O2 gas a=1.36 L^2atm/mol2

    asked by Hannah
  73. ALG 2

    27 + 9 + 3... Find the sum of the geometric series given

    asked by Embraced
  74. physics

    A square door on the base of a water tank is 0.5 m by 0.5 m. The tank contains water to a depth of 3 m and sits on four legs. Find the magnitude of the force acting on the door

    asked by seare
  75. chemistry

    2SO2 + O2 >>>> 2SO3 delts h = -197.8 KJ K= 0.0114 at 400 degree Celsius engineers have found that SO3 can be produced faster by increasing the temperature to 400 degree Celsius, even though this change favors the reverse reaction. suggest an explanation

    asked by klove12
  76. soc stud 7th gr canada

    I have a question about Canada what are 2 countries Canada borrowed their ideas from to form their government? I said : USA and England is that right?

    asked by marko
  77. science

    How far out from an axis must a 1200 N force be applied (i.e. what is the forces moment arm) in order to counter and hold a 90 Nm torque acting in the clockwise direction?

    asked by Ariel
  78. PHYSIC

    A PLANE IS TRAVELING AT 90 MILES PER HOUR DUE SOUTH. WHAT DO WE KNOW ABOUT IT? 1. ITS SPEED 2. ITS VELOCITY 3. BOTH ITS SPEED AND ITS VELOCITY

    asked by GRISSELL
  79. Physic

    A plane is traveling at 90 miles per hour due south. What do we know about it? the speed, its velocity or both its speed and its velocity?

    asked by Eddie
  80. Math Problem

    Please solve -4x is greater than or equal to -2.4

    asked by Lavern
  81. Anatomy and Physiology

    Discussion Topic: Chemistry of Life, Cells, and Tissues Select an organ and provide an example of how it uses the following: carbohydrates, lipids, proteins, and nucleic acids. Also, describe an area of interest related to one of the types of molecules,

    asked by Melanie
  82. Anatomy and Physiology

    Discussion Topic: Chemistry of Life, Cells, and Tissues Select an organ and provide an example of how it uses the following: carbohydrates, lipids, proteins, and nucleic acids. Also, describe an area of interest related to one of the types of molecules,

    asked by Melanie
  83. english

    What are the most large ecological problems in the world todayÉ

    asked by Rebecca
  84. American Literature

    I read the speech 'On The Campaign Against Drug Abuse" by President and Mrs. Reagan. For one of the questions it asks what inclusive language is used. You, our, we're, etc. were used throughout the speech. Would this be correct ??

    asked by Anonymous
  85. math116

    y= -1/2x-4 solve for x if y= -1 Answer would be x= -6. So the full answer would be (x,y)=(-6,-1)?

    asked by missy
  86. Precalc

    find the following limit lim n->infinity 2+5n+4n^4/2n show steps please

    asked by 95
  87. English

    I urgently need you to check these sentences, please. 1) How long have you know Peter? I' ve known him for two years, since I moved to Paris. 2) We'll arrive late unless we take a taxi. 3) We won't start dinner until/as long as your father doesn't arrive.

    asked by Henry2
  88. calculus

    Need help for calcul: ( 1/2 ( -1 + i√3 )) ^2 thanks for your help

    asked by Sébastien
  89. MACROECONOMICS

    compare and contrast the Islamic perspective on consumption, investment and savings to conventional economic system?

    asked by ABDULAI ABUS-SHAKUR
  90. Nutrition

    You decide to perform proximate analysis on a sample from your best friend's diet. Most abundant component(s) in nitrogen free extract of diet would be: a) insoluble fibre b) starch c) triglyceride d) Sodium and potassium I know the correct answer is b)

    asked by Ashley
  91. precalculus

    find the inverse of function f(x)=4-2ln(x+1). state domain, range and any asymptotes of both

    asked by Sara
  92. law

    Which of the following legal publications is NOT typically updated with pocket parts? (Points: 5) Legal encyclopedias Legal dictionaries Digests Treatises is it D

    asked by Andy
  93. Physics

    PLEASE HELP! and include steps of how you solved it! What magnitude of force, acting for 0.025 s, will change the velocity of a 100 g ball from 30 m/s eastward to 40 m/s westward?

    asked by Anon
  94. poetry

    true or false iambic pentameter consists of five feet of two syllables,each of which is an uncaacented syllable followed by an accented one

    asked by mariam
  95. math

    Help with this problem 160 mm = blank m 23 cm = blank m

    asked by stephanie
  96. law

    Revise and edit the following run-on sentence: Data in computerized form is discoverable, even if paper "hard copies" of the information have been produced, the producing party can be required to design a computer program to extract the data from its

    asked by Andy
  97. Physics

    Calculate the force of gravity on a 2 kg mass at Earth’s surface. The mass of Earth is 6 * 10 ^24 kg, and its raidus is 6.4 * 10 ^ 6.

    asked by Amanda
  98. Algebra

    When do you reverse the sign in inequality? Please give examples.

    asked by Anonymous
  99. law research

    Review and revise the following paragraph. After reviewing al the pleadings the underlining records that party arguments; pertinent caselaw and statues and the other recommendations filed byt eh party's, this court remainsof the opinion and biew point that

    asked by Andy
  100. math

    Reducing fractions to lowest terms ( 27/54=

    asked by regina
  101. chemistry

    My teacher is going to list the molar masses of five gases and ask us which has the largest molar volume at STP. How would I go about solving this?

    asked by Hannah
  102. geometry

    How do you solve the following equation. -2= (-5/12)x + 3

    asked by christy
  103. physics

    An airplane starts from rest and moves forward with a constant acceleration of 5 m/s2 along a runaway 250 m long. How long does it take the plane to reach a speed of 46.0 m/s?

    asked by tracy
  104. geometry

    how to write (3.5,1.5) as a midpoint ?

    asked by famu