Questions Asked on
January 31, 2010

  1. chem

    Suppose that a reaction calls for 1.25 moles of ethanol,C2H6O (mw= 46.07 g/mol d=0.7893g/cm^3. what volume of ethanol shold one measure out

    asked by sam
  2. chemistry 21

    13. Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g) „_ 2Cu(s) + SO2(g) If the reaction of 0.540 kg of copper(I) sulfide with excess oxygen produces 0.140 kg of copper metal, what is the percent

    asked by lee
  3. entrepreneur/business

    What are three things you would do to sell a strategy proposal to your management team.

    asked by Molly
  4. Application Assignment

    Trace the nerve impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up one step. Include the steps involved in transmitting the impulse from one neuron to another and then to

    asked by angel
  5. Chemistry

    The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 425C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at

    asked by Sammy
  6. HELP Plz - Introduction to Human Anatomy and Physi

    Situation: You need to step up on a step to reach an object on a high shelf. Instructions: (Part one) Trace the nerve impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up

    asked by angel
  7. Calculus

    If 9 J of work are needed to stretch a spring from 9 cm to 10 cm and 15 J are needed to stretch it from 10 cm to 11 cm, what is the natural length L of the spring?

    asked by Georgia Sack
  8. Chemistry

    The rate constant for a certain reaction is = 4.30×10−3 s^-1. If the initial reactant concentration was 0.400 M , what will the concentration be after 19.0 minutes? Rate would be first order therefore I used. A=A initial*e^-kt I keep getting .0030 M but

    asked by Joanna
  9. science

    Calculate the amount (volume) of 6.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 150 mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation. Any help is appreciatede.

    asked by Jander
  10. chemistry

    Calculate the amount (volume) of 6.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 150 mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation

    asked by Fann
  11. chemistry

    Mass of Aspirin tablet: 0.357 g 10 mL of 1 M NaOH was added to the aspirin tablet in a 125 mL Erlenmeyer flask and heated to a boil. The solution was transferred to a 100 mL volumetric flask and the flask was filled to the mark with DI water. 1 mL of the

    asked by t
  12. English

    Can you check the following sentences please I'm not sure of? 1) On Ney Year's Eve I took part in a torch-light procession on the skis (can you say that?) 2) I played barbilliards and snooker with my friends 3)I played on (?) my pinball machine and

    asked by Franco
  13. maths

    write in digits the greatest number i could show with three counters?

    asked by Anonymous
  14. science

    How does the angle a rocket is launched at affect how far it travels?

    asked by Anonymous
  15. chemistry

    A student placed 11.5 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask was reached. The flask was then shaken until the solution

    asked by sam
  16. human resources

    do you think setting up an hr unit in the main office would help?

    asked by Anonymous
  17. PHYSICS - please check my work

    a spectator at a hockey game is sitting in a seat situated 10.4m above ground leve. if the spectator has a mass of 52.6 kg, calculate her gravitational potential energy relative to: a)ground level Eg=mgh =52.6X9.8X10.4 =5360.99J b)the ice surface Eg=mgh

    asked by Sarah
  18. ethics

    the difference between psychological and ethical egoism?

    asked by chris
  19. PHYSICS - ONE MORE QUICK QUESTION

    PLEASE SEE ADDITIONAL QUESTION AT BOTTOM. A pendulum was set up and measurements were made to enable the mechanical energy to be calculated at the start position S and the lowest point of the pendulums swing L. The mass of the pendulum bob was determined

    asked by Sarah
  20. math

    how to do 3 squares with 12 sticks

    asked by Lia
  21. Physics

    A variation Russel traction supports the lower leg in a cast. suppose that the patient's leg and cast have a combined mass of 15.0kg and m1 is 4.50kg. (a) what is reaction force of the leg muscles to the traction? (b) what must m2 be to keep the leg

    asked by C. Standard
  22. Plz Help. I am lost!!!Human Anatomy and Physiology

    1. Macroscopic Neurology – trace impulse macroscopically through the nervous system from the brain to the muscle 2. Microscopic Neurology – trace impulse as it passes through the neuron, neuron to neuron, and across the NMJ 3. Sliding Filament Theory

    asked by angel
  23. Physics

    I'm having trouble understanding which formula to use to answer this question. What is the apparent weight of an astronaut weighing 77kg shortly after blasting off in a roacket at an upward acceleration of 80/meters per second squared? I know he/she will

    asked by CJ
  24. PHYSICS

    ADDITIONAL INO ADDED AT BOTTOM a spectator at a hockey game is sitting in a seat situated 10.4m above ground leve. if the spectator has a mass of 52.6 kg, calculate her gravitational potential energy relative to: a)ground level Eg=mgh =52.6X9.8X10.4

    asked by Sarah
  25. Algebra

    Find the vertical line through (6, -6)

    asked by Michelle
  26. Algebra

    Find the midpoint of the line segment having the given endpoints: (8,-4) and (-7,8)

    asked by Michelle
  27. Physics

    A 2000kg ferris wheel accelerates from rest to an angular speed of 2.0 rad/s in 12 secs. Approximate the ferris wheel as a circular disk with a radius of 30m. what iss the net torque on the wheel

    asked by C. Standard
  28. BUISNESS AND TECHNOLOGY

    1. How does Nike's Web site help the company strengthen its relationships with its stakeholders? Give examples to support your answers

    asked by alex
  29. BUISNESS AND TECHNOLOGY

    How do the elements of the Web site reflect Nike's target market?

    asked by alex
  30. BUISNESS AND TECHNOLOGY

    3. Does Nike invite comments from visitors to its Web site? If so, how does this affect its attempt to build positive relationships with its customers?

    asked by alex
  31. BUISNESS AND TECHNOLOGY

    What market segments are the target markets of NASCAR?

    asked by alex
  32. BUISNESS AND TECHNOLOGY

    2. What market strategy is NASCAR using to reach its target markets

    asked by alex
  33. Statistics

    Students were given an exam with 300 multiple-choice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. What were the scores of the students who were within one standard deviation of the mean? What

    asked by Patty
  34. Grammar

    I understand Dr. Maurice hired a new nurse. What is her name? 1b.

    asked by Tracy
  35. grammar

    I’m not very good at math because I’m a girl

    asked by Tracy
  36. grammar

    My new coworker is actually quite nice

    asked by Tracy
  37. PHYSICS

    PLEASE SEE ADDITIONAL QUESTION AT BOTTOM. A pendulum was set up and measurements were made to enable the mechanical energy to be calculated at the start position S and the lowest point of the pendulums swing L. The mass of the pendulum bob was determined

    asked by Sarah
  38. chemsitry

    calculate the molarity of sodium in 12.4g of sodium acetate diluted in 100mL of ID water, and calculate concentration of both sodium and acetate ion in units of mg/mL,mg/L,and ug/mL?

    asked by Samah
  39. chemsitry

    calculate the molarity of sodium in 12.4g of sodium acetate diluted in 100mL of ID water? and calculate concentration of both sodium and acetate ion in units of mg/mL,mg/L,and ug/mL? and calculate concentration of both sodium and acetate ion in units

    asked by Samah
  40. physics

    A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.45 m. A third charge of +4q is located on the x axis at such a place that the net electrostatic force on the charge at the origin doubles, its direction

    asked by jenn
  41. algebra

    1235 feet

    asked by Anonymous
  42. chemsitry

    You have been provided 100mL of a 1000ug/ml barium standard what volume of this standard must be diluted into 50mL of ID water to produce a 30 ug/ml standard ? if you given a full 100mL of the same standard provied calculate the amount of standard and

    asked by Samah
  43. Sue: acc300

    I removed your post because it contains 25 questions for your final exam. We do not do exams. I also doubt if your instructor would welcome this exam being posted on the internet.

    asked by Ms. Sue
  44. English

    Write the gerund phrase in each sentence. Then indicate whether the phrase functions as a subject (S), an object of preposition (OP), a direct object (DO), an indirect object (IO), or a predicate nominative (PN). 1. Pablo Morales became known as the

    asked by aLexus
  45. critical thinking

    what kind of fallacy is this 'it takes someone with a really big heart to give to our charity, you seem like someone that cares.

    asked by ladonna
  46. Accounting

    Proprietorship, partnership or corporation, Why would an entrepreneur want to choose one over the other?

    asked by Cheryl
  47. Bussiness Economics

    disadvantages of specialization and division of labour

    asked by Danielle
  48. Misc

    Recently on the news, i read about the second man who got pregnant. I was wondering, how is that even possible? And how is he supposed to deliver the baby? -MC

    asked by mysterychicken
  49. English

    Write the gerund phrase in each sentence. Then indicate whether the phrase functions as a subject (S), an object of preposition (OP), a direct object (DO), an indirect object (IO), or a predicate nominative (PN). Are these Correct?! 3. Morales learned

    asked by aLexus
  50. math

    Students were given an exam with 300 multiple-choice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. You may find it helpful to draw out this distribution before answering the questions below What were

    asked by Patty
  51. algebra 1

    marcy has a total of 100 dimes and quarters. if the total value of the coins is $14.05, how many quarters does she have?

    asked by kelly
  52. algebra 1

    marcy has a total of 100 dimes and quarters. if the total value of the coins is $14.05, how many quarters does she have?

    asked by kelly
  53. English

    3. Morales learned quickly, and soon he started winning junior championships. ANSWER: winning junior championships,(DO) Is number 3 direct object Ms. Sue!?!?

    asked by aLexus
  54. chemistry

    I am having trouble balancing this equation: C6 H12 06 + O2 = C7 H8 + O2 Can you please help? Thanks

    asked by Joanie
  55. chemistry

    I am having trouble balancing this equation: C6 H12 06 + O2 = C7 H8 + O2 Can you please help? Thanks

    asked by Joanie
  56. social studies

    what year did: Hiram Maxium invent the Gatlni Gun Alfread Noble invent the Dynamite christopher sholes invent the typewriter

    asked by livy
  57. Crimal Justice

    • Write a 350- to 700-word essay describing each person’s roles. Discuss how they work together when handling a trial. For each person, describe at least one communication exchange they may have during a trial.

    asked by gary
  58. 6th grade

    what are the 4 major industries in Egypt

    asked by ts
  59. 3rd grade

    when i am rounded to the nearest 10, I am 40. The sum of my digits is 8. I can be two different numbers. Who am I?

    asked by Anonymous
  60. ss

    what are the products, exports. and imports used for

    asked by ts
  61. english

    The paragraph below needs to be made more coherent. Use repetition, synonyms, and pronouns to link the sentences. Type the improved paragraph in the space provided on the following page. Many cities are easily distinguished by their skylines. In such

    asked by lisa
  62. Physics

    What detector is used to pick up the x-rays in hospitals?

    asked by Laura
  63. college Physics

    The coordinates of an object moving in the xy plane vary with time according to the following equations x = −7.16 sin ùt and y = 4.00 − 7.16 cos ùt, where ù is a constant, x and y are in meters, and t is in seconds. Write expressions for the

    asked by Katie
  64. English I

    I need help. I have to argue in a paragraph about whether "Daddy" by Sylvia Plath is surrealistic or not. I don't even know how to start it.

    asked by Candace
  65. calculus

    if f is a continuous function defined by f(x)={x^2+bx, 5 sin("pie"/2x) then b= ?

    asked by Anonymous
  66. algebra

    how do you do this math problem 8x+9=5x+6

    asked by breanna
  67. math

    Two angles are complementary. THe sum of the measure of the first angle and one forth of the second angle is 58.5 dagrees. Find the measure of the angles.

    asked by Phil
  68. Carpentry

    Parts of a concerte block

    asked by TOM
  69. health

    Class, let's say someone finds out, during the course of a routine medical exam, that they have a serious illness which must be treated immediately. Perhaps this is totally unanticipated. How is this handled in a physicians office, or at the hospital? In

    asked by linda
  70. health

    How does technology, such as the EMR….the Electronic Medical Record, Electronic Charting, PACS, etc., impact the care and treatment of a patient? What are your thoughts about what it does to the quality of healthcare delivery we currently enjoy,

    asked by linda
  71. CHEMISTRY

    Express your answer as a chemical equation. Identify all of the phases in your answer. C12H22O11

    asked by ASHISH
  72. algebra

    How do I solve for m and b in the y = mx + b formula if the x-intercept is -16 and the y-axis intercept is 3? How would I go about putting these numbers into the equation?

    asked by Tommy
  73. Algebra

    Hi, I'm struggling to do two questions. 1) If ||u||=2, ||v||=root 3 and u dot v = 1, find ||u+v|| 2)Show that there are no vectors u and v such that ||u|| = 1, ||v||=2 and u dot v = 3 Please help if you can. Thanks a million

    asked by Vanessa
  74. chemistry

    The vapor pressure of dichloromethane, CH_2Cl_2, at 0 degrees celcius is 134 mmHg. The normal boiling point of dichloromethane is 40 degrees celcius. Calculate its molar heat of vaporization (in kJ/mol).

    asked by jack
  75. Math

    Midtown Antiques collects 4% sales tax on all sales. If total sales including tax are $1058.30, find the portion that is the tax. Round your answer to the nearest cent. A)$40.70 B)$42.33 C)$1017.60 D)$30.70 E) none of the above

    asked by Robbie
  76. Algebra 3

    Perform the indicated operations and simplify. x^2/3(square root of x-1/square root of x)

    asked by Jennifer
  77. College Physics

    The triangle is an equilateral triangle: 20 cm x 20 cm x 20 cm. What is the value of the electric potential at the center of the triangle if q1= 5.0 nicroC , q2= 5.0 microC, q3= -4.2 microC? V = 4.52 x 10^5V but I can not get this answer. What is the value

    asked by Lanise
  78. social studies

    what is the agriculture of Egypt

    asked by ts
  79. university chemistry

    The instruction booklet for your pressure cooker indicates that its highest setting is 11.4 psi. You know that standard atmospheric pressure is 14.7 psi, so the booklet must mean 11.4 psi above atmospheric pressure. At what temperature will your food cook

    asked by elena
  80. math

    Students were given an exam with 300 multiple-choice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. What was the score of students who scored in the middle of the class? (50% did better, 50% did

    asked by Patty
  81. social studies

    what is the agriculture of egypt ?

    asked by ts
  82. math

    Students were given an exam with 300 multiple-choice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. What was the score of students who scored in the middle of the class? (50% did better, 50% did

    asked by Patty
  83. english1

    I need help. I have to argue in a paragraph about whether "Daddy" by Sylvia Plath is surrealistic or not. I don't even know how to start it. This is what I got so far. Is it good? This poem to me, doesn’t really define the term surrealistic. Surrealistic

    asked by Candace
  84. math

    Approximately 4 out of every 10 students at Sonia's college live on campus. The college has 3,000 students. How many of them live on campus?

    asked by peewee
  85. environment Science

    Global perspectives on environmental health: Identify the 3 components of the environment,Briefly describ the major classess of pollutant in each category and their effect on health, Explain how sustainable development affects the environment.

    asked by ap
  86. History

    Could someone please help me with this? There is three parts to this qiuestion. I need to list three things about each topic; the social, political and economic. The question is this: Social, political and economic changes and advances that emerged during

    asked by B.B.
  87. physics

    How much work is required to completely separate two charges (each -1.9 microC ) and leave them at rest if they were initially 6.0mm apart?

    asked by Lanise
  88. physics

    How much work is required to completely separate two charges (each -1.9 microC ) and leave them at rest if they were initially 6.0mm apart?

    asked by Lanise
  89. math

    A cube has a total surface area of 384 ft². Find the total surface area of the largest sphere that will fit into it.

    asked by maribel
  90. biology

    3. In what cells do meiosis and mitosis take place? 4. If one strand of DNA, had bases ordered ATCCGTC, what would be the bases of its other strand?

    asked by kim
  91. College Physics

    A 12.0- A 12.0- A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.204m^2 and a plate separation of 3.14mm . What is the charge on the capacitor? Q = C How much energy is stored in the capacitor? Uc = J What is the

    asked by Lanise
  92. College Physics

    Calculate the voltage required to accelerate a beam of protons initially at rest if they have a kinetic energy of 2.7 eV. deltaV = V Calculate their speed if they have a kinetic energy of 2.7 eV . v = m/s

    asked by Lanise
  93. College Physics

    Calculate the voltage required to accelerate a beam of protons initially at rest if they have a kinetic energy of 4.5keV. deltaV = V Calculate their speed if they have a kinetic energy of 4.5keV . v = m/s

    asked by Lanise
  94. Chemistry

    Which of the following surfaces does a true monolayer always form on? A. silicon B. gold C. both D. neither

    asked by Stacy
  95. english 1

    The underlined statement is a prepositional phrase. Leslie stood with his back against the wall.

    asked by vic
  96. english

    After the sentence, mark whether your item below contains a fragment (F) or a run-on (R-O). Then correct the error in your response. Exercise: The view was not what the travel agent had described. Where were the rolling hills and that shimmering rivers?

    asked by Robbie
  97. Precalculus

    Find the component form of v given its magnitude and the angle it makes with the positive x-axis. Magnitude of v= 2 Angle= v in the direction i+3j

    asked by Marie
  98. algebra

    I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem

    asked by vicky
  99. social studies

    what did t.r do in latin america

    asked by risha
  100. History

    Which neutral nations later joined the Central Powers/Allies in WWI? I know for sure the original Central Powers are Germany, Austria-Hungary, and Bulgaria. And the Allies are Russia, France, and Great Britain... Thanks!

    asked by Moe
  101. algebra

    I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem

    asked by vicky
  102. math

    One card is selected at random from an ordinary set of 52 cards. Find the probability of each of the following events: a spade and a 5 are drawn. a jack is not drawn. Thanks for any help with this.

    asked by Joan
  103. social studies

    why was the boxer rebellion important to the u.s foreign affairs?

    asked by risha
  104. Calculus

    Find the volume of the solid formed by revolving the region bounded by the graphs of y=4x^2 and y=16 about the x-axis. (Washer Volume)

    asked by john
  105. English

    What is the theme of the poem, "The Road Not Taken"? I think the theme is making a decisions that is different from everybody else.

    asked by Abriel
  106. organ chem

    Why is thymol only slightly soluble in water, but very soluble in 1.0 M NaOH?

    asked by j
  107. Intermediate Accounting

    Pan Erickson Construction Company changed from the completed-contract to the percentage-of-compleltion method of accounting for long-term construction contracts during 2008. For tax purposes, the company employs the completed-contract method and will

    asked by Jeniffer
  108. math

    a student claims that if a fair coin is tossed and comes up heads 5 times in a row, then according to the law of averages the probability of tails on the next toss is greater than the probability of heads. What is your reply?

    asked by Charles
  109. Spelling

    broom:sweep::brush:?????

    asked by Alpo
  110. Spelling

    glue:sticks::thorns:???????

    asked by Alpo
  111. Math

    suppos a drawer contains 6 black socks, 4 brown socks, and 2 green socks. suppose one sock gets pulled out of the drawer and that is equally likely that any one of the socks is drawn. what is the probability that the sock is either balck or green. the sock

    asked by Amy
  112. Math

    Solve for P: A = P + nrP

    asked by Kristy
  113. Algebra.. please help

    Please help. I have been trying to figure this problem out for an hour now. Solve the following system of equations. X + 8y = 5 (1) x=8-8y (2)

    asked by Chloe
  114. vocabulary

    The mom left the room with a MODICUM of respect after her baby began ____ . a) sleeping b) screaming c) praying d) singing b is that correct

    asked by K
  115. social studies

    when was the: Nancy Johnson's hand-crank ice cream freezer Emeline Hart's commercial oven Ellen Eglin's clothes wringer sarah mather's submarine telscope martha coston's saftey flare gun emily tassey's dredging pump henrietta vansittart's (improved

    asked by livy
  116. Rectangles

    The width of a rectangle is fixed at 18cm. What lengths will make the perimeter greater then 74cm?

    asked by Amber
  117. vocabulary

    After the play _____, several critics made scathing comments about it. a)succeeded b)opened c)closed d)bombed a is that correct

    asked by K
  118. algebra

    It takes Tammy 45 minutes to ride her bike 5 miles. At this rate, how longwill it take her to ride 8 miles?

    asked by Russell
  119. trig

    find the exact value of cos(theta) if the terminal side of angle(theta) contains the point (-3,5)

    asked by rob
  120. math

    how to put this in vertex form: -2(2x-1)(x+4)

    asked by Preston
  121. physics

    A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.2 m/s. The car is a distance d away. The bear is 29 m behind the tourist and running at 6.0 m/s. The tourist reaches the car safely. What is the maximum

    asked by Anonymous
  122. Physics

    An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.7 m/s2. The magnitude of the car's velocity at the

    asked by Anonymous
  123. physics

    A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.8 m/s2; after 3.6 s he enters the main speedway. At the same instant, another car on the speedway and

    asked by Anonymous
  124. math

    1) Find the period and the amplitude. y= 3 sin 2x Please explain!!!

    asked by Hannah
  125. PHYSICS

    The intensity level of a sound is reported in unit decibel(dB). how does IL change if we increase a sound intensity by a factor of 10? a)remains the same b) increases by 1dB to 2dB c)it increases by 2dB to 20dB d)it increases by 20dB to 200dB e) it

    asked by Brittany
  126. 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 -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens?

    asked by Anonymous
  127. physics

    While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by Anonymous
  128. Physics

    If you throw a ball through a pile of sand, it will slow down in the sand and emerge at less that its initial speed. But when light shines on a pane of glass, even though it slows down inside, its speed upon emerging is the same as its initial speed.

    asked by Hanako
  129. History - Ming Dynasy

    How and why did the rule of law develop in the Ming Dynasty?

    asked by Emma
  130. Algebra

    Solve by elimination method. 2x+ 3y = 1 4x + 6y= 2

    asked by John
  131. vocabulary

    The mom left the room with a MODICUM of respect after her baby began ____ . a) sleeping b) screaming c) praying d) singing b is that correct

    asked by K
  132. Math

    Amy paid 72.34 for a pair of running shoes during a 20%off sale. what was the regular price?

    asked by Lee
  133. English I

    What is the theme of the poem, "The Road Not Taken"? I think the theme is making a decisions that is different from everybody else. I am also suppose to find the subject of the poem but I am lost with that.

    asked by Abriel
  134. History

    Was the airplane classified a social change or advance during the Roaring Twenties? I say that it was more an economic change or advance.

    asked by B.B.
  135. Physics

    A supersonic jet travels at 3.0 Mach (i.e. at three times the speed of sound). It cruises at 20,000 m above the ground. we choose t=0 when the plane passes directly overhead of an observer. At what time t will the observer hear the plane? -- there is a

    asked by Katelynn
  136. Math

    80% of what number is 20? Would this be 100?

    asked by Kelly
  137. Ela

    could you give me an conclusion and introduction for ancient india clothing and art plz!!!!! plzplzplzplz!!!!!!!

    asked by Edward
  138. Math

    The function H described by H(x)= 2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus( the bone from the elbow to the shoulder) is x cm long? Predict the height of a woman whose humerus is 35 cm long. Is this correct?

    asked by Kelly
  139. Elimination Method...

    Solve by eliminatin method. 2r-5s= -11 5r+2s= 16

    asked by Joe
  140. College Physics

    A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.8 m/s2; after 3.6 s he enters the main speedway. At the same instant, another car on the speedway and

    asked by Anonymous
  141. grade 8 math

    when i divide the circumference of a circle by its diameter i get the value of pi and this also happens when i use different units. why does this happen?

    asked by anonymous
  142. chemistry

    Transfer the tablet to a clean 125-mL Erlenmeyer flask. Add 10-mL of 1M NaOH and heat the mixture to a gentle boil. Once the solution has cooled to room temperature, transfer it to a 100-mL vol. flask. Using the diluted solution from the 100-mL volumetric

    asked by eng
  143. math

    Explain why there does not exist a function whose domain is {-1,0,3} and whose range is {3,4,7,9}. PLEASE EXPLAIN!!

    asked by jh
  144. Math

    Find the indicated outputs for f(x)= 5x^2-5x. F(0) = 0 f(-1)= 1 f(2)= 45 is this right?

    asked by Joe
  145. Precalculus

    Show that sum of two even function with the same domain is an even function.

    asked by jh
  146. U.S. Government

    How does the government today influence the nation's economy? What other areas is the government involved in? I don't know what to answer. Please help! Thank You.

    asked by Anonymous
  147. English 12 - Euphemism

    Hello! It didn't help to say that I am an exchange student and it is hard to do for me. No excuse! You have to do it though. Can anybody help me to find euphemism for these phrases? 1. lying on a resume 2. cheating on a test 3. committing adultery 4.

    asked by Exchange Student
  148. physics

    While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by brittany
  149. college 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 -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens

    asked by brittany
  150. college physics

    While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by tina
  151. business

    Explain the difference between fiscal policy and monetary policy. Discuss how each of these approaches can be used to influence the state of the economy.

    asked by mark
  152. college physics

    While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by tina
  153. math

    explain what each equation represents. 1) 5e+1=15

    asked by caitlin
  154. math-4th grade

    a worker is usin boards to divide a rectangular animal pen into a row of 12 smaller goat pens. uhow many boards does the worker need?

    asked by alysha
  155. fin/200

    Under what conditions must a distinction be made between money to be received today and money to be received in the future

    asked by sarah
  156. us history

    how did woodrow wilson's reform platform during the 1912 campaign differ from that of theodore roosevelt?

    asked by bri
  157. us.history

    What effects of the invention or trend in the alternating electrical current

    asked by Anonymous
  158. math

    CountingOutcomes and Theoretical Probability A computer store sells 4 models of computer (m1,m2,m3 m4. Each model can be fitted with 3 sizes of hard drive (A,B,C,) 1- Find the sample space. 2- What is the probability of choosing a model with a size C hard

    asked by Julainna
  159. social st.

    is this a 6 grade work There is and another part of Indian Culture which is Indian Arts The main theme of Indian art seem to begin emerging as early as the Harappan period, about 2500 BC. Although we're still not sure, some Harappan images look like later

    asked by Edward
  160. math

    a local gas station uses the formula c= o.635L

    asked by amber
  161. Sociology

    What aspects of the social and work environment in a fast food restaurant would be of particular interest to a sociologist because of his or her sociological imagination?

    asked by Tara
  162. math

    a local gas station uses the formula c= 0.635L+ 6.25 to charge customers who want to buy gasoline and a car wash what is the total cost if you buy 20L of gasoline? please help!

    asked by cait
  163. math

    a local gas station uses the formula c= 0.635L+ 6.25 to charge customers who want to buy gasoline and a car wash what is the total cost if you buy 20L of gasoline? please help!

    asked by amber
  164. Physics

    Alright i can not get this question i'm confused

    asked by brittany
  165. Geometry

    I need help unscrambling these geometry vocabulary words senligtacirpalse pitprceenostel nyenagliltuiqitrea gemhetrohnie

    asked by Daisy
  166. instrument

    i am having difficulties playing flute. what should i do?

    asked by purbasha
  167. accounting

    What does a zero economic profict mean?

    asked by Kim
  168. math

    2xsquare -8x -42 over 6xsquare divided by xsquare -9 over xsquare -3x in simplist form

    asked by Anonymous
  169. College Physics 1

    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 -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens

    asked by james
  170. chemistry

    If 1373 g of a substance is dissolved in 2315 g of cyclohexane solvent, the boiling point of the solution is 87.69 oC. Calculate the apparent molar mass (g/mol) of substance.

    asked by eng
  171. trig

    A population of wolves in a country is represented by the equation p(t)=80(0.98)^t, where t is the number of years since 1998. Predict the number of wolves in the population in the year 2008.

    asked by andy
  172. hcr220

    "a 68-year-old male presents to the office complaining of pronounced weakness on the right side of his body and slurred speech for the past twenty four hours. based on the examination, the physician orders an MRI to investigate a possible transient

    asked by Very Confused
  173. Algebra

    Simpily the following (4/7M)2(49M)(17p)(1/34p5)

    asked by Kenzie
  174. US Government

    I am having a problem understanding what the different roles of the US President are responsibilities: What are"the Head of States" responsibilities? What are "The Chief Executive" responsibilities? What are the "Chief Diplomat" responsibilities? I think

    asked by ASH
  175. math

    Clayton has three fair coins. Find the probablitlity that he gets two tails and one head when he flips the three coins.

    asked by haseeb
  176. College Physics 1

    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 -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens

    asked by james
  177. history

    How did traditionalists fight back against the age of modernism and mass society?

    asked by kris
  178. chemistry

    If 1373 g of a substance is dissolved in 2315 g of cyclohexane solvent, the boiling point of the solution is 87.69 oC. Calculate the apparent molar mass (g/mol) of substance.

    asked by eng
  179. Precalculus

    Suppose h(x) = 3/x^2-1. Find two nontrivial functions such that h(x)=(f o g)(x) (f o g referring to f of g)

    asked by jh
  180. math

    consider an angle in standard position with r=12 centimeters. write a short paragraph describing the change in magnitudes of x,y,sine theta,cosine theta, and tan theta as theta increases continually from zero degrees to ninety degrees.

    asked by levon
  181. Precalculus

    Give an example to show that the product of two one-to-one function is not necessarily a one-to-one function.

    asked by jh
  182. chemistry

    what are the possible sources of error that might lead to an erroneous determination of the concentration of the acetic acid?"

    asked by elena
  183. chemistry

    what are the possible sources of error that might lead to an erroneous determination of the concentration of the acetic acid in the titration lab?

    asked by elena
  184. Physics

    The intensity of a particular earthquake wave is measured to be 5.0 multiplied by 106 J/m2·s at a distance of 55 km from the source. (a) What was the intensity when it passed a point only 3.0 km from the source? (b) What was the rate energy passed through

    asked by Eric
  185. calculus

    Calculate the work (in joules) required to pump all of the water out of the tank. Assume that the tank is full, distances are measured in meters, and the density of water is 1,000 kg/m^3. Water exits from a small hole at the top of the rectangular box. The

    asked by Jake
  186. Basic Finance Risk vs Return

    Please check and correct my answers. Investors want ____ returns and ___ risk. Answer: high return, low risk Which statement about the efficient set, minimum-variance set and feasible is incorrect? a) the minimum variance is the set of all portfolios with

    asked by Anonymous
  187. science

    Since humans and other animals are capable of glycolysis, why do we need to breathe oxygen?

    asked by PEEWEE
  188. social studies

    discuss the impact of the Louisiana Purchase and Andrew Jackson removal policy on native american

    asked by marlene
  189. math

    Suppose that humans walk about 10,000 steps per day, on awerage. 1. Your average step is probably about 18 inches. If so, how many inches per day do you walk? 2. How many feet per day do you walk? 3. How many miles per day do you wa;k, to the nearest whole

    asked by Katelee
  190. math

    How many ways can seven basketball players of different heights line up in a single row so no player is standing between two players taller then herself?

    asked by robin
  191. SOC 120

    Research the affects of the four types of punishment—retribution, deterrence, rehabilitation, and societal protection—in relation to today’s American society, as outlined in the Summing Up table on p. 182. Try search terms such as “effects of

    asked by Krystal
  192. math

    If you tend to be one of those people who taps their foot, picks their nails, drums their fingers, or moves around in their seat, there may be some good news. Although your fidgeting may be annoying to others, researchers at the National Institute of

    asked by Anonymous
  193. SOC120

    • Compose a 200- to 300-word response to the following: • • Explain urban growth trends in the world’s poorest countries. What causes urbanization in poor countries? • • Choose a major city in a poor, developing country and research how

    asked by J
  194. Math

    1) Find the period and the amplitude. y= 3 sin 2x Please explain!!! I do not know how to do this.

    asked by Hannah
  195. algebra

    using exactly four 3's and any math symbol you like, try to write an equivilent expression for each whole number from 1 through 10 example 1=3*3/3/3

    asked by lsuman
  196. calculus

    evaluate the limit as x approaches positive and negative infinity (x^2+6x+8)/(x+3)^2

    asked by Anonymous
  197. Math

    Solve by the elimination method. 2r-5s = -11 5r + 2s = 16

    asked by Joe
  198. french

    deux personnes dans votre famille

    asked by jaia
  199. french

    deux de vos cammarades de classe

    asked by jaia
  200. french

    deux de vos professeurs

    asked by jaia
  201. math

    the function with the sum of roots of 11 and product of roots is 11 is..? thanks for the help!

    asked by cynthia
  202. statistics

    HOW DO YOU WORK WITH NUMBERS IN A SERIES LIKE 38 36 30 28 22 : THENEXT NUMBER WOULD BE WHAT . OR 2 5 11 20 32 47 AND THE NEXT NUMBER IN THE SERIES WOULD BE WHAT

    asked by teresa
  203. Public Speaking

    what are example of communication behaviors? a list of communication behaviors

    asked by Bryan
  204. algebraic fractions in lowest terms

    40c to the 5th power over 10c to the 4th power in lowest terms?

    asked by Jim
  205. Public Speaking

    Need help the paper ask this question 1. Where in the listening process did you break down? (Be sure to note the specific stage of the listening process that broke down.

    asked by Bryan
  206. english

    where do i put the dashes in this sentence... please explain why. The number of active movie screens that is, screens showing films or booked to do so is higher now than at any time since World War II.

    asked by layla
  207. ACCOUNTING

    what is the answers to com 140 comprehensive grammar checkpoint

    asked by tony
  208. physics

    IF A PERSON'S WEIGHT IS 850 N WHAT IS THE PERSON'S MASS IN KG?

    asked by LADY27
  209. chemistry

    Automotive antifreeze consists of ethylene glycol, C2H6O2, a nonvolatile electrolyte. Calculate the boiling point and freezing point of a 25.0 mass percent of ethylene glycol in solution.

    asked by danielle
  210. microeconomics

    Suppose a production possibilities frontier can be expressed as + = 9. The opportunity cost of going from 0 units of X to 1 unit of X is

    asked by james
  211. chemistry

    What is the half-life of a compound if 69 percent of a given sample of the compound decomposes in 59 min? Assume first-order kinetics.

    asked by danielle
  212. math

    The combinations on the lockers at the high school consist of three numbers, each ranging from 0-39. If a combination is chosen at random, what is the probability that the first two numbers are multiples of 9 and the third number is a multiple of 4?

    asked by nbkda74
  213. chemistry

    The boiling point of diethyl ether CH3CH2OCH2CH3 is 34.500C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is cholesterol . How many grams of cholesterol, C27H46O (386.6 g/mol), must be dissolved in 263.0 grams of diethyl

    asked by allie
  214. Math

    x3-3x+2/x-3 using lond divison

    asked by Tammie
  215. MATHS

    Mr Wood makes tables with 4 legs and stools with 3 legs. Nine customers ordered 8 items each. Each ordered was different. How many legs are needed altogether?

    asked by BRYAN
  216. Math

    A celluar phone company offers a contract for which the cost c, in dollars,t minutes telophoning is givien by c=0.25(t-600)+71.95, where it is assumed that t is greater than or equal to 600 minutes.

    asked by Anonymous