Questions Asked on
January 16, 2010

  1. heat of vaporization

    Suppose that 1.00 g of rubbing alcohol (C3H8O) evaporates from a 54.0 g aluminum block. If the aluminum block is initially at 25 C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the

    asked by Kyle
  2. physics

    A uranium nucleus 238U may stay in one piece for billions of years, but sooner or later it decays into an a particle of mass 6.64×10−27 kg and 234Th nucleus of mass 3.88 × 10−25 kg, and the decay process itself is extremely fast(it takes about

    asked by Anonymous
  3. physics

    According to Newton's version of Kepler's third law, how would the ratio T^2/r^3 change if the mass of the Sun were doubled?

    asked by kendra
  4. Thomas Paine

    The cause of America is in a great measure the cause of all mankind. Many circumstances hath, and will arise, which are not local, but universal, and through which the principles of all Lovers of Mankind are affected, and in the Event of which, their

    asked by Kelly
  5. math

    Every day a commuter takes a train that arrives at her station at precisely 6:00 pm. She is met at the station by her husband, who also arrives at precisely 6:00 pm. He always drives the same route to the station and never varies his speed. One day the

    asked by Sahana
  6. history

    o What were Americans afraid of during the Cold War? o How did the alliances formed during World War II change after World War II because of the Cold War? o How did Cold War ideology and policies affect U.S. foreign policy from the 1940s through the 1950s?

    asked by Anonymous
  7. AP Physic

    Hi there I am having a lot of trouble trying to figure out this homework problem and I really need help. This problem is dealing with wave motion and I do not know how to set up the formula to get the correct answer. Please help me and show some steps how

    asked by shylo
  8. physics

    during space flight, astronauts often refer to forces as multiples of the force of gravity on earth's surface. what does a force of 5g mean to an astronaut?

    asked by kendra
  9. Finance

    Has the buildup in plant and equipment been financed in a satisfactory manner? Briefly discuss.

    asked by Anonymous
  10. physics

    A uranium nucleus 238U may stay in one piece for billions of years, but sooner or later it decays into an a particle of mass 6.64×10−27 kg and 234Th nucleus of mass 3.88 × 10−25 kg, and the decay process itself is extremely fast(it takes about

    asked by Anonymous
  11. Statistics

    Statistics students were asked to go home and fill a 1-cup measure with raisin bran, tap the cup lightly on the counter three times to settle the contents, if necessary add more raisin bran to bring the contents exactly up to the 1-cup line, spread the

    asked by Faye
  12. Math

    A person takes a simple interest loan at 7.5%. After 6 months, the amount of interest on the loan is $69.64. What was the amount of the loan? Please help me. I have been working on this for awhile.

    asked by Anonymous
  13. Math

    Is my answer correct? The population of a city is 160,000 and is increasing at a rate of 1.5% each year. Approximately when will the population reach 320,000? My answer is approximately 46 years. Is that right? Thx

    asked by Kellie
  14. psy

    Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation.Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20 -1.77* Nurturance 16.11 13.89 -2.22* * p

    asked by Anonymous
  15. physics

    You do a certain amount of work on an object initially at rest, and all the work goes into increasing the object's speed. If you do work W, suppose the object's final speed is v. What will be the object's final speed if you do twice as much work? 1. 4 v 2.

    asked by Anonymous
  16. Math

    How many Positive integers are between 200-500 that are divisible by the integers 4,6,10,12?

    asked by Lora
  17. spanish ab

    some one asked me , a que le tiras what dose that mean ?

    asked by reina
  18. physics - another question

    Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is

    asked by Sarah N H
  19. Math

    How many Positive integers are between 200-500 that are divisible by the integers 4,6,10,12?

    asked by Flarina
  20. physics

    A uranium nucleus 238U may stay in one piece for billions of years, but sooner or later it decays into an a particle of mass 6.64×10^−27 kg and 234Th nucleus of mass 3.88 × 10^−25 kg, and the decay process itself is extremely fast(it takes about

    asked by Anonymous
  21. math

    a circle has a circumference of 110.6mm find diameter to the nearest tenth A.35.2mm b.36.2mm c.37.2mm d.38.2mm

    asked by makeeda
  22. physics - power(1)

    A grocer lifts an 8.0-kg carton from the floor to a height of 0.80 m in 5 sec. Calculate the power of man.

    asked by Mota
  23. maths

    Using the digits 1, 2, 3 & 4 each once only, and as many +, -, x, / and brackets as you need, try to make as many different numbers as you can, starting at 0, 1, 2 .... Which is the first number that you cannot make? My answer is 3. Which is the largest

    asked by shelby
  24. world history

    How did the Reformation in England effect the colonization of the New World?

    asked by sally
  25. math

    convert 4.2g= kg A)0.42kg B)0.042kg C)0.0042kg d)0.00042kg

    asked by makeeda
  26. math

    convert 48in= ft A)3ft B)4ft C)5ft D)6ft

    asked by makeeda
  27. math

    find the volume of a pyramid whose base is 6ft by 5ft and has an 8ft height a. 50 ft3 b. 60 ft3 c. 70 ft3 d. 80 ft3

    asked by makeeda
  28. algebra 2

    Posted by hellogoodbie on Saturday, January 16, 2010 at 3:24pm. Posted by hellogoodbie on Saturday, January 16, 2010 at 2:59pm. How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x

    asked by hellogoodbie
  29. Finance

    anthony bought a boat 3 years ago, and at that time he put a down payment of $25000 cash. today he made the second and final payment of $28 300, which includes the interest on the balance owing. anthony financed his purchase at 6.35%/a, compounded

    asked by diana
  30. psychology

    how does erik erikson's psychosocial stages of development differ from freud's theory (psychosexual stages of development)?

    asked by Anonymous
  31. Civics

    For civics we have to do a community service project. I have decided to do something for the Haitian earthquake. Based on what I've read, money is better than supplies. So I'm looking for ways to raise money that are fun/require little effort on part of

    asked by Alyce
  32. algebra

    the perimeter of a rectangle is 78m the length is 6m more than twice the width I have the width at 18m and the length at 42m because 18*2=36+6=42 42+36=78 Am I correct? Thanks for any help

    asked by Chrysanne
  33. chemistry

    Select all cases in which the units comprising the solid are best classified as ions? P4 Mg(ClO3)2 Ge Pb(NO3)2 Ag C2H4O2

    asked by tea
  34. physics - last question

    Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is

    asked by Sarah N H
  35. litature

    Need assistance with lit class checkpoint for week 8 rough draft of final paper for A raisin in the sun and the lottery Lit/210 wk 8

    asked by Debby
  36. buisness

    explain how social cultural differences ceate problems for walt disney in opening parks over seas

    asked by ALEX
  37. physics - power(3)

    A force of 48 N pushes a 2 kg object initially at rest a distance of 3m along frictionless horizontally surface. Find: A- The work done on the object. B- The power of the applied force.

    asked by Mota
  38. math

    a triangle has a base of 7ft and an altitude of 15ft. find it area to the nearest tenth a.52.5 ft2 b.53.5 ft2 c.54.5ft2 d.55.5ft2

    asked by makeeda
  39. math

    Let I denote the interval [0,oo). For each r ∈ I, define A={(x,y)∈ RxR:x^2+y^2=r^2} B={(x,y)∈ RxR:x^2+y^2

    asked by Anonymous
  40. Statistics

    Statistics students were asked to go home and fill a 1-cup measure with raisin bran, tap the cup lightly on the counter three times to settle the contents, if necessary add more raisin bran to bring the contents exactly up to the 1-cup line, spread the

    asked by Kat
  41. Statistics

    The fracture strength of a certain type of manufactured glass is normally distributed with a mean of 579 MPa with a standard deviation of 14 MPa. (a) What is the probability that a randomly chosen sample of glass will break at less than 579 MPa? (b) More

    asked by Faye
  42. Rip Van Winkle

    1.What did the story implies? (in history) 2.Why the author discuss about the relationship between England and America through the relationship between Rip and his wife?

    asked by Kelly
  43. Physics

    The equation of a wave along the x-axis is given as: ξ cm = 3.4 sin (1.16 x - 0.85 t) in which ξ is the displacement. Units on the right hand side are 1/cm for К and 1/s for ω. Determine the the traveling speed of the wave. im assuming you get k=1.16

    asked by Vlad
  44. Social Studies

    compare and contrast the pros and cons of the following: (1) Integrated Social Studies Learning

    asked by Anonymous
  45. international business

    Explain the relation between trade and world output. Describe the broad pattern of international trade. If the nations of the world were to suddenly cut off all trade with one another, what products might you no longer be able to obtain in your country?

    asked by confused
  46. algebra 2

    How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x the value -2, and compute f(-2) algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 1:47pm so is the answer f=21/2? if that

    asked by hellogoodbie
  47. algebra 2

    Posted by hellogoodbie on Saturday, January 16, 2010 at 2:59pm. How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x the value -2, and compute f(-2) algebra 2 - hellogoodbie,

    asked by hellogoodbie
  48. algebra 1

    What is the third term of a recursive sequence that follows the pattern x - 7 and has a first term x = 100? May somebody explain the answer and how they got it? Thank you so much

    asked by rachel
  49. Calculus

    This is my first calculus class and I am lost on how to answer these. The book isn't giving me a clear explanation for help. Any help someone could provide would be great! 1. Use a reference triangle to find the given angle. cos -1 (1/2) give an exact

    asked by Jarred
  50. english

    Choose one significant, current issue, and specifically connect that issue to Oedipus The King. I just need help choosing the topic. Please help.

    asked by Anonymous
  51. Accounting

    If you can manipulate the balance sheet to paint a nice picture of earnings and financial position of a company, what B/S items would you choose to manipulate and how?

    asked by Janice
  52. chemistry

    Select all cases where the substance shown has a molecular dipole? (HO)2SO2 sulfuric acid CH3CF3 1,1,1-trifluoroethane C4H8 cyclobutane OF2 oxygen difluoride CH3CH2CO2H propionic acid i know OF2 don't have dipole.

    asked by bubble
  53. Finance

    A new car depreciates an average of 22% in its first year of use. If the car was worth $16,000 when it was new, what will the car be worth after 1 year?

    asked by landi
  54. child development

    Explain the stages of social and moral development children experience from early childhood through adolescence. can you help me fond some information that answers this plz thank you

    asked by scooby
  55. history

    How did Cold War ideology and policies affect U.S. foreign policy from the 1940s through the 1950s?

    asked by Anonymous
  56. math

    convert 14qt= gal. A)1.5gal B. 2.5 gal c. 3.5 gal d.4.5gal

    asked by makeeda
  57. calculus

    U-Substitution 1. 3x(sin^2((3x^2)+1)cos((3x^2)+1)dx 2. (x^3)(sqrt((3x^2)+1)) dx u = ((3x^2)+1) then?

    asked by matt
  58. physics

    light travels from ethanol intro crown glass. what's the brewster angle in this situation? illustrate your answer with a light ray diagram. what's the signifcance of this angle of incidence? n1=1.36for ethanol nR=1.52 for crown glass tanangleB=nR/ni

    asked by Lora
  59. English

    What are synonyms for "operational efficiencies"?

    asked by Anonymous
  60. physics

    light travels from ethanol intro crown glass. what's the brewster angle in this situation? illustrate your answer with a light ray diagram. what's the signifcance of this angle of incidence? n1=1.36for ethanol nR=1.52 for crown glass tanangleB=nR/ni

    asked by Lora
  61. math

    10x + 7 - y= 0 This equation would be linear right?

    asked by jess
  62. physics

    Newton assumed that a gravitational force acts directly between Earth and the Moon. How does Einstein's view of the attractive force between the two bodies differ from Newton's view?

    asked by kendra
  63. L.A

    Write a friendly letter on protecting those you love. How should I start and end the letter? Thanks

    asked by Shadow
  64. physics

    Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is

    asked by Sarah N H
  65. Math

    Find the values of the following: 66 and 2/3% of 100m sqaure

    asked by vanessa marie
  66. grade 11 physics

    Consider the optical interface between crown glass and ethanol. Under what conditions would total internal relfection be possible at this interface? ilustrate your answer with a light ray diagram. Okay so you need the angle of incidenc to be greater than

    asked by Lora
  67. physics

    You do a certain amount of work on an object initially at rest, and all the work goes into increasing the objectfs speed. If you do work W, suppose the objectfs final speed is v. What will be the objectfs final speed if you do twice as much work? 1.

    asked by Anonymous
  68. physics

    You do a certain amount of work on an object initially at rest, and all the work goes into increasing the object's speed. If you do work W, suppose the object's final speed is v. What will be the object's final speed if you do twice as much work? 1. 4 v 2.

    asked by Anonymous
  69. 4th grade

    Is all matter made up of tiny particles too small to see

    asked by steven
  70. mgt

    You are a Board member and the CEO of a major oil company experiencing problems from the increase in oil prices. Your employees’ morale is down because their workload has increased because of layoffs to decrease the cost structure. Investors are angry

    asked by meshelle
  71. physics

    light travels from ethanol intro crown glass. what's the brewster angle in this situation? illustrate your answer with a light ray diagram. what's the signifcance of this angle of incidence? n1=1.36for ethanol nR=1.52 for crown glass tanangleB=nR/ni

    asked by Lora
  72. Socials

    Outline the results of the fur trade from the points of view of both the French traders and the native peoples whom they encountered. I don't really get this question, can someone please explain, thanks

    asked by Sara
  73. buisness

    Is it a good idea to open america fast food resturants in disney parks overseas, selling the same types of food as sold in U.S. disney parks? why or why not?

    asked by ALEX
  74. S.S.

    How much did the population of the British colonies in America, increase from 1700 to 1770?

    asked by Billy
  75. chemestry

    what is the formula for boyles law

    asked by izzy
  76. business

    I need help with this question whats the social and cultural customs that Walt Disney could encounter overseas?

    asked by mark
  77. college chemistry

    how do I calculate the amount of heat lost by the metal, qmetal?

    asked by Bertha
  78. psychology

    Scenario: John is an 18-year-old freshman at New York University. John was the starting quarterback at his high school in a small town in Indiana. He enjoys playing sports and hanging out with friends. John has always been popular and done well in school

    asked by bri
  79. mgt

    could some please explain the primary leadership theories that are used in for profit and non-profit organizations.

    asked by meshelle
  80. space

    why cant petrol driven cars we use on earth be used on the earth?

    asked by Anonymous
  81. physics - work 2

    A force of 100N pulls a box of weight 200N along a smooth horizontal surface (angle = 45) Calculate the work done by the force. A- in moving the box a distance of 25m along the horizontal. B- against gravity. C- against normal force.

    asked by Mota
  82. literary

    American Lit how did Jonathan Edwards balance his idea and his religion?

    asked by Kelly
  83. american literature

    Why is Thomas Paine the Spokesmen of American Revolution?

    asked by Kelly
  84. math

    every summer, each student organization at your school sends 2 students to summer camp. the teacher mentor randomly selects the students (pulls from a hat) the club has 10 students among the students is a set of twins. what is the probability the 2 slots

    asked by brina
  85. healthcare

    can you help me find information on providers access to medicare? I am doing a outline and am kind of stuck on this one?

    asked by april
  86. math

    A call to europe after 11:00pm is $1.95 for 3 minutes. what would a 45 minute call at 11:30pm cost?

    asked by bridgette
  87. math

    a trapezoid has bases of 15ft and 9ft and a height of 8ft find its area A.95ft2 b.96ft2 c.97ft2 d.98ft2

    asked by makeeda
  88. buisness

    ethically would it be fair to pay U.S. empoyees that are relocated overseas a different wage than local employees, please explain

    asked by ALEX
  89. algebra

    4x+6y less than or equal to -40 {y|y_ _} I am getting 2/3x but am stumped on the -40 I came up with -6.6666 and I don't think it is right. what am I doing wrong? thanks

    asked by Chrysanne
  90. High School Pre Calculus

    This is probably really easy but I am confused. #1 Find the domain and graph the function: f(x)= sq root x-1 #2 Graph the function g(x)=(x + 3)^3

    asked by Ashley
  91. physics - work

    Imagine you find a 2 kg book on the floor and lift it 0.75 meters and put it on a table. find the work done ?

    asked by Mota
  92. physics - power(2)

    A force of 100N pulls a box of weight 200N along a smooth horizontal surface (angle 45) . Calculate the power of the applied force.

    asked by Mota
  93. history

    What were Americans afraid of during the Cold War?

    asked by Anonymous
  94. soc 300

    Explain the Modernization and Dependency theories as they relate to underdevelopment. What are the major contributions of each theory and what are the greatest weaknesses? Explain which theory of underdevelopment has greater empirical support, particularly

    asked by Christine
  95. Math

    Find the values of the following: 66 and 2/3% of 100m sqaure

    asked by vanessa marie
  96. math

    convert 67800cm= km A)5.78km B)6.78km C)67.8km d)678km

    asked by makeeda
  97. math

    convert 73yd= ft A)19ft B)119ft C)109ft D)219ft

    asked by makeeda
  98. chemistry

    What volume of 2M HCl would be required to completly react with 0.314g of Zn? what mass of hydrogen gas would be produced?

    asked by jamieson
  99. algebra 2

    How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x the value -2, and compute f(-2) algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 1:47pm so is the answer f=21/2? if that

    asked by hellogoodbie
  100. Science

    Is discharge of static electricity from a huge cloud called a thundercloud?

    asked by steven
  101. health admn

    how do you distinguish between a management, non-training and training issue? What are some examples of each type of issue?

    asked by candace
  102. english

    It's always best not to start trouble that you can't finish.

    asked by mar
  103. Religion

    What are the indigenous religions in asia?

    asked by Anonymous
  104. American Lit

    how did Jonathan Edwards balance his idea and his religion?

    asked by Kelly
  105. history

    How did the alliances formed during World War II change after World War II because of the Cold War?

    asked by Anonymous
  106. psy 210

    what stage debelopment is michael and what factors about this stage might be affecting his perspective of this situation?

    asked by Lisa
  107. Math

    Express the following as percentages: 15min out of 1hr

    asked by vanessa marie
  108. Math

    How would these numbers be represented on a number line. 1/3, 2/3, 3/3, 4/3, 5/3

    asked by Samantha
  109. math

    convert 5300mm= m A)5.3m B)53m C)530m D).53m

    asked by makeeda
  110. Math

    Estimate the sum of 3 1/5 + 2 1/2 A.6 B.5 C.7 D.4

    asked by Marcia
  111. social studies

    where are the counteis of Sumtet and Citrus located?

    asked by Flarina
  112. science

    Does lighting occur when charges jump between the thunder cloud and the positive ground as a discharge?

    asked by steven
  113. cultural Diversity

    I f someone made the following sttements to you, how would you explain that the statements are misconceptions? Include whether you think most Americans believe these misconceptions, and explain why or why not. Asian Americans and Pacific islanders are

    asked by Tammi
  114. earth

    A man with a weight of 1000 newtons on earth visits each planet what is his weight on each?

    asked by Anonymous
  115. history

    are there any more details to what americans were afaid of during the cold war

    asked by Anonymous
  116. Math

    Express the following as percentages: 15min out of 1hr

    asked by vanessa marie
  117. algebra 2

    How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2)

    asked by hellogoodbie