Questions Asked on
January 24, 2010

  1. physics

    a 2000 kg car rounds a circular turn of radius 20.0 meters. if the road is flat and the coefficient of static friction between the tires and the road is .70, how fast can the car go without skidding

    asked by mallory!!!!!!!!!!!!
  2. physics!

    tarzan tries to cross a river by swinging from one bank to the other on a vine that is 10.0 meters long. his speed at the bottom of the swimg is 8.0 meters/second. Tarzan does not know that the vine has a breaking strnght of 1000 newtons. what is the

    asked by hannah!
  3. chemistry

    how many grams of HNO3 can be produced if 225 grams of NO2 is mixed with 55.2 g of H2O? 3NO2 + H2O=2HNO3 + NO

    asked by jenny
  4. math

    A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work properly. Assume the probability of one part working does not depend on the functionality of any of the other parts. Also assume

    asked by April
  5. college chemistry

    Given that the heat of fusion of water is -6.02 kJ/mol, that the heat capacity of H2O(l) is 75.2 kJ/mol*K and that the heat capacity of H2O(s) is 37.7 kJ/mol*K, calculate the heat of fusion of water at -11 K.

    asked by i'm stuck
  6. Physics

    Estimate the terminal speed of a wooden sphere (density 0.770 g/cm3) falling through air, if its radius is 9.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) (b) From what height would a freely falling object reach this speed in

    asked by ucieng
  7. physics

    Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it

    asked by Michelle
  8. chemistry

    Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.8 of water upon warming from 25degree C to 50degree C . Assume that the water is initially saturated with nitrogen and

    asked by bf
  9. physics

    A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 40.0° with the vertical. Find the velocity of the rain

    asked by Michelle
  10. Organic chemistry

    Is m-nitroaniline soluble in water, 1.0M NaOH, 1.0M HCl?

    asked by Kevin
  11. Organic chemistry

    is benzoic acid soluble in water, 1.0M NaOH, 1.0M HCl?

    asked by Kevin
  12. chemistry

    Celeste's diet restricts her intake of protein to 24 g per day. If she eats 1.2oz of protein, has she exceeded her protein limit for the day?

    asked by robynn
  13. Physics

    Estimate the terminal speed of a wooden sphere (density 0.770 g/cm3) falling through air, if its radius is 9.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) (b) From what height would a freely falling object reach this speed in

    asked by ucieng
  14. 4 grade

    A snail climbs up a wall 20 feet high. Each day the snail climbs 5 feet, but each night it slips backwards 4 feet. How many days will it take for the snail to get to the top of the wall?

    asked by Anonymous
  15. Physics

    The following values are the only allowable energy levels of a hypothetical one-electron atom: E6 = =2 X 10^-19 J E5 = -7 X 10^-19 J E4 = -11 X 10^-19 J E3 = -15 X 10^-19 J E2 = -17 X 10^-19 J E1 = -20 X 10^-19 J A) If the electron were in the n = 3 level,

    asked by Vea
  16. Vibration and Waves

    1. A girl on a playground swing makes a complete to-and-fro swing each 2 seconds. The frequency of swing is 1. (0.5 hertz) 2. (1hertz) (ANSWER) 3. (2 hertz) And the period is (FROM THE QUESTION BEFORE) 1. (0.5 seconds) (ANSWER) 2. (1 second) 3. (2 seconds)

    asked by Sam
  17. physics

    An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 15.0 m if her initial speed is 2.40 m/s. What is the free-fall acceleration on the planet?

    asked by Michelle
  18. Physics

    A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

    asked by Jeremy
  19. physics

    Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it

    asked by Michelle
  20. communication

    As such, each department has a different perspective on how to get things done, and what to get done. they have developed, hopefully, well defined policies procedures, as well as specific processes in order to ensure that their work gets completed in an

    asked by Anonymous
  21. Trigonometry

    A little boy is flying a kite. The string of the kite makes an angle of 30 dgrees with the ground. If the height of the kite is h equals 15 m, find the length (in meters)of the string that the boy has used.

    asked by Rob
  22. Statistics

    70% of the student body of a very large post-scondary institution is female. In a random sample of 12 students, what is the probability that: a) at most half will be females b) more than 7 will be females c) fewer than 3 will be males I used the Table of

    asked by Sunny
  23. Physics

    A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

    asked by Jeremy
  24. Calculus

    Prove that the average of LRAM and RRAM is equal to TAM.

    asked by Daniel
  25. Chemistry

    Select all cases in which the units comprising the solid are best classified as molecules. CrSe C2H2 CS2 C2H4 Cs2S Cl2O7 None Help please? I think they're all molecules

    asked by Angel
  26. Physics

    When a solid wheel rotates about a fixed axis, do all of the points of the wheel have the same tangential speed?

    asked by courtney!!
  27. PHYSICS-radiation

    Four billion years ago the Sun’s radiative output was 30% less than it is today. (i) If we assume the radius of the sun is the same, and that the Earth’s atmosphere was the same as it is now (that is, the atmosphere absorbs 10% of the incoming solar

    asked by RANI
  28. chemistry

    A 1.10- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0 , the osmotic pressure of the solution is 3.78 at 298 .

    asked by bf
  29. physics

    In the Millikan oil drop experiment, an atomizer (a sprayer with a fine nozzle) is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates. Some of the droplets pick up one or more excess electrons. The charge on

    asked by James
  30. chemistry

    If 4.36g of a hydrate of the salt baCl2 is heated and in the process losses 0.6431g of mass, show all your work to calculate the amount of water X in the hydrate, BaCl2.XH2O

    asked by ujay
  31. Math 156

    A child's dose of medicine is 16 of a pre-measured dose cup. If the bottle of medicine is the size of 9 dose cups, how many children's doses are there in the bottle?

    asked by Janey
  32. physics

    Correct the following statement: The racing car rounds the turn at a constant velocity of 145 km/hr.

    asked by mimi
  33. physics

    the force exerted by a spring increases as the spring stretches. imagine that you attach a heavy object to one end of a spring and then, while holding the springs other end, whirl the spring and object in a horizontal circle. does the spring stretch.

    asked by billie
  34. English

    “Harlem” What happens to a dream deferred? Does it dry up like a raisin in the sun? Or fester like a sore— And then run? Does it stink like rotten meat? Or crust and sugar over— like a syrupy sweet? Maybe it just sags like a heavy load. Or does it

    asked by Candace
  35. chemistry

    if 4.36g of a hydrate of the salt baCl2 is heated and in the process losses 0.6431g of mass, show all your work to calculate the amount of water X in the hydrate, BaCl2.XH2O

    asked by ujay
  36. 12th grade economics

    how might opportunity cost help to explain tha pattern of international trade?

    asked by muz
  37. eng gr 9

    hi I have an exam tomorrow in english and our teacher told us the exam is writing an essay on either curious case of the dog in the night time or midsummer's night dream. I have studied for both the play and the novel the themes, character analysis, way to

    asked by Anonymous
  38. check and correct public speaking

    1. (TCO5) According to the text, non-verbal communication is: My Answer D continuous, emotional, ambiguous and both intentional and unintentional ambiguous, multi-channeled, intentional and both continuous and sporadic continuous, multifaceted, emotional

    asked by Bryan
  39. PHYSICS!!!

    iN THE EQUATION FOR THE MAGNITUDE OF TORQUE, WHAT DOES THE QUANTITY d sin radians represent.

    asked by Mackenzie!!!!!!!!!
  40. Science

    Engineering Science Project ideas and some thing cool interesting and new not that has been popular as a science project!!!!!!!!!!!!! Plz!!!!!!!!!!!!!!

    asked by Edward
  41. chem

    Species of arsenic found in kriking water include (AsO3)3-, (CH3)2(AsO2)2-, (CH3)AsO3 2-, and (AsO4)3-. Pure water containing no arsenic was spiked with 0.40microgram arsenate/L. Seven replicate determinations gave 0.39, 0.40, 0.38, 0.41, 0.36, 0.35 and

    asked by bun
  42. PHYSICS

    Four billion years ago the Sun’s radiative output was 30% less than it is today. (i) If we assume the radius of the sun is the same, and that the Earth’s atmosphere was the same as it is now (that is, the atmosphere absorbs 10% of the incoming solar

    asked by Sunshin3
  43. physics

    a perpetual motion machine is a machine that, when set in motion, will never come to a halt. why is such a machine not possible?

    asked by bobbyyyyyyyyyyyyyyyyyy
  44. marketing

    There are four Ps in marketing. These are Price, Product, Promotion, and Place. Choose a product or service with which you are familiar. Describe the product or service. Then, in your own words, describe the 4-P decisions which would be important when

    asked by Anonymous
  45. chem

    why do elements in the same family generally have similar properties?

    asked by samuel
  46. Geology

    Can someone help me with these questions I have some material for them but not enough. • First-- Compare and contrast the geological features of a desert landscape and glacial landscape. Describe at least one process that creates the resulting landforms

    asked by Jen
  47. chemistry

    A 1.10g- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0ML , the osmotic pressure of the solution is 3.78atm at 298K a.What is the percent by mass of glucose in the sample? b.What is the

    asked by bf
  48. Physics

    The mass of a car is 2400 kg. the constant power supplied by the engine is 60 kW and the car starts from rest. What is the speed of the car at the end of 2 seconds?

    asked by Leah
  49. 9th grade

    Why did many people in mecca reject muhammad's ideas at first?

    asked by zainab
  50. Vibration and Wave Fundamentals

    Vibration and Wave Fundamentals 1. A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s. (A.) What is the distance in the air between the flying bullets? ____ ANSWER=30 (B.)What happens to the distance between the bullets if the

    asked by Sam
  51. college chemistry

    An aspirin tablet weighing 0.502 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of

    asked by Alexander
  52. algebra

    Four pears and two apples cost $1.96. Three apples and three pears cost $2.10. Find the cost of 1 apple and 1 pear.

    asked by brooke
  53. Algebra 2

    a computer manufacturer needs to change the dimensions of its foam packaging for a new model of computer. the width of the original piece is three times the height, and he length is equal to the height squared. The volume of the new piece can be

    asked by Jane
  54. Biology

    Need help with these two: 26. Why do plant cells contain both choroplasts and mitochondria? a. in the light, plants are photosynthetic autotrophs. In the dark, they are heterotrophs. b. if plants can't produce enough ATP to make sugars during

    asked by mysterychicken
  55. 5th Grade fractions

    Walt has a piece of rope which is 10 1/3 feet long. He has to cut it into 4 equal pieces. How long will each piece be? I took 10 1/3 divided by 4 which is 2.58333. How can I explain this to my 5th grader in fractions?

    asked by Meghan
  56. Physics E&M

    An electron is released from rest on the axis of a uniform positively charged ring, 0.100 m from the ring's center. If the linear charge density of the ring is +0.149 µC/m and the radius of the ring is 0.200 m, how fast will the electron be moving when it

    asked by Alex
  57. Trig

    2cos^2Beta-Cosbeta=0 (find all solutions for the equation in the interval 0, 2 pi). I have no idea how to go about doing this. Do you isolate the beta on one side? Would you be able to show me how and I'll solve for you to check?

    asked by Janie
  58. math

    A police department reports that the probabilities that 0,1,2, and 3 burglaries will be reported in a given day are .51, .44, .04, and .01, respectively. Find the expected number of burglaries reported in a given day. How do I figure this out? I simply do

    asked by April
  59. social studies

    Who represented Linda Brown in the court case Brown vs. Board of Education of Topeka?

    asked by Ashley
  60. math

    solve. x(1 +2x) = (2x - 1)(x - 2)

    asked by LO
  61. 3rd grade

    the best estimate to measure a desk. i put ruler and meter

    asked by aliyah
  62. physics

    how does the gravitational force exerted by earth on the sun compare with the gravitational force exerted by sun on the earth? and would you expect tides to be higher at the equator or at the north pole? why?

    asked by amar
  63. physics calc based

    In the product F = qB (vectors), take q = 2 (neglecting the units of charge, q) and v = 2.0 i + 4.0 j + 6.0 k and F = 4.0 i + (-20 j) + 12 k . What then is B in unit-vector notation if Bx=By ?

    asked by hannah
  64. 8TH GRADE MATH

    thank you so much, ms sue! may i ask another question? If 6 oz cost 3.25 20 oz cost 5.59 36 cost 6.59 how much would 12oz, 26 oz, 48 oz cost? Thank you so much! maribeth

    asked by maribeth
  65. biochem

    When making Aspirin, I know that sulfuric acid is used as a catalyst. But i was wondering 1.) if the reaction would happen without the cataylst and 2.) can other substances be used as a cataylst in this reaction?

    asked by chrissy
  66. chemistry

    im doing a lab on le chatelier's priciple and the question is 'describe what you observe when the saturated solution of sodium chloride was stressed by the addition of CL- ions, write the ionic equation and explain how le chatelier's principle is applied

    asked by Anonymous
  67. Math

    Express the given quantity in terms of the indicated variable. The interest obtained after one year on an investment at 2 1/2% simple interest per year; x = number of dollars invested

    asked by Sara
  68. pure maths

    use trapezium rule with 3 intervals to estimate the value of intergrating x=0 and x=3 squarerooting 1+xsquared

    asked by marie
  69. physics

    A fly lands on one wall of a room. The lower left-hand corner of the wall is selected as the origin of a two-dimensional Cartesian coordinate system. The fly is located at the ...

    asked by Anonymous
  70. social studies

    How does italy's geographical features affect its economy?

    asked by amy
  71. Physics

    You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window (0.86 m high, 2.1 m wide) in your compartment, the

    asked by Mike
  72. science

    Expain why,it is easier to break an egg by stricking at the flat side, other than at the pointed edges.

    asked by caleb
  73. pre calculus

    Perform the division and write your answer in form. g(x)+r(x)/ d(x) (4x^3-1)/ (x-4)

    asked by indigo
  74. instrument

    I have absolutely no idea about this, but I am doing a crossword puzzle for music, and I don't know what #1 across is. The clue it gives you is, "music sounds produced by the use of tools," and the word or words is 19 letters long. Help please! Due

    asked by Ash
  75. Trigonometry

    A crow is on the ground 80 feet from the base of a 45 foot tall tree. It then flies straight throught the air to the top of the tree. What is the angle of the crow's flight path relative to the ground ?

    asked by Drake
  76. algebra

    A 30ft. cable is cut into 2 pieces. One piece is twice as long as the other piece. Find th length of each piece of the cable.

    asked by brooke
  77. algebra

    Translate to an inequality. The average speed, s, was between 100 and 110 mph. Translation: 100_ s _ 110

    asked by Sharone
  78. college physics

    The electric field near the surface of a uniformly charged conducting plane can be determined by Gauss's law. If the plane is a square of sides 11.5 cm and carries a charge of 22.0 nC (that's nanocoulombs), what is the magnitude of the electric field near

    asked by Aly
  79. College Physics

    Now we also know that the charge on a pair of parallel plates is proportional to the potential difference V, namely q=CV. We also know that the capacitance of two parallel plates is given by C=ε0A/d, where ε0=8.85×10-12 is the permittivity of free space

    asked by Robert
  80. Physics: fictitious forces

    A plumb bob does not hang exactly along a line directed to the center of the Earth's rotation. How much does the plumb bob deviate from a radial line at 39.0° north latitude? Assume that the Earth is spherical. This was in my textbook with an angle of 35

    asked by ucieng
  81. chemistry

    Which of the following minor products could not arise from the halogenation reaction below? a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4 dimethylhexane e)2,2,5 trimethyl pentane plz can someone help me...i kno its

    asked by rafael
  82. Trig

    Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line segment OP makes with the positive x-axis. the answer is 5.86 radians but i keep getting 0.418 radian. please help and show work

    asked by Drew
  83. physicsss

    Phobos is the larger and closer of Mars’s two moons. It has no atmosphere, a mean radius of 11 km, an albedo of 0.07, and an emissivity of 1.0. (i) Assuming that the radiative temperature of Phobos is 222 K and that it is spherical, what is its mean

    asked by physics help!
  84. algebra

    the width of a rectangle is fixed 29 cm. what lengths will the perimeter greater than 82 cm. the length must be greater than blank cm.

    asked by at
  85. Physics

    A machine is used to either do work or to convert energy. To find the efficiency of a machine, one must compare the power input to the machine to the power output of the machine. What does thepower take into account in addition to the amount of work done

    asked by Anonymous
  86. Finite

    Assume that the producer has 8 skits and 5 commercials available. In how many ways can the producer create a television show?

    asked by Megan
  87. grade 11 physics

    PLEASE HELP - NOBODY ANSWERED MY QUESTION YESTERDAY. sue drives her 1452 kg car along a straight road at a constant velocity of 30 m/s [E]. Ger brakes suddently give out. she puts the car in neutral and lets it coast for 25 seconds. The air drag

    asked by Laura
  88. math

    Solve. x+1/3 + x+2/7 =2

    asked by Deedee
  89. 7th grade science

    1) what makes bones hard? 2) what is the hard,strong layer of bone called? 3) what is the smooth flexable layer of tissue covering the ends of bones? 4) what kind of joints are found in the skull and pelvis? 5) what type of muscles make up the majority of

    asked by mary
  90. Trigonometry

    A pole with a height of 60 ft. has a shadow of length of 34.64 ft at a particular instant of time. Find the angle of elevation of the sun at this point of time.

    asked by Rob
  91. algebra

    tains A and train B are travling in the same dicrtion on a parral track train A is traving 60 mph and train B is traviling 70 mph train A passes a staion at 11.15 am and train B passes the same station at 11.45 am at what time will train B catch up to

    asked by me
  92. 9th grade

    How do you factor this expression? 10x+15

    asked by Daniel
  93. algebra

    If Kurt were 10 years old, he would be twise as old as his sister, and their combine ages would be 36. How old are Kurt and his sister?

    asked by brooke
  94. math

    How do I find a variance for a set of numbers {1,16,8,17,12} I got that variance-34.2, but I'm unsure. Any help? Thanks.

    asked by April
  95. algebra

    help please im on my final exam for algebra and i need to pass this is the second time taking it. media services charges $20 for a phone and $30 a month for itd economy plan. the equation c=30t+20 describes the total cost c, of operating a media service

    asked by at
  96. French/Sra

    J'aime faire du shopping au centre commercial et aux grands magasins. Mes amis uniquement font du shopping au centre commercial. J'aime porter des t-shirts longs, jeans, pantalons, pulls, et ce que je suis comfortable dans l'école. Les vêtements que

    asked by Anna
  97. Algebra 209

    the perimeter of rectangle back yard is 6x+6 yards if the width is x yards find a binominal that represents the length.

    asked by Tanya
  98. Public Speaking

    what is an example for negative interpersonal communication skill working?

    asked by Bryan
  99. algebra

    x=-2 type the integer of a fraction if there is one

    asked by me
  100. math

    how do I solve 1/3 x = 5/12

    asked by marc
  101. PHYSICS

    ANOTHER QUICKQUESTION ABOUT THIS ONE, PLEASE HELP pete and john play a game of tug war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2. Sarah decideds

    asked by SAMIR
  102. math

    find the midrange of these: 1.5, 2.5, 3.0, 1.0, 1.4, 3.5, 1.8, 1.8, 3.3, 2.2, 2.8, 1.8 I thought you take the highest - the lowest and then divide by 2, but the answer I get is not one of the choices. Show me the formuula please? Thanks!

    asked by Sam
  103. English I

    Respond to the question presented by the poet. "..if there were a fire in a museum which would you save, a Rembrandt painting or an old woman who hadn't many years left anyhow?" Explain your answer. "Ethics" In ethics class so many years ago our teacher

    asked by Candace
  104. grade 11 physics

    Cathy takes the bus home from work. In her hand she holds a 2 kg cake box, tied together with a string. As she ascends the steps into the bus,the box accelerates upward at a rate of 2.5m/s^2. what is the force exerted on the string? Fg=ma =2*9.8 =19.6N

    asked by Sarah N H
  105. 5th grade

    What is each branch of government responsible for?

    asked by Emmy
  106. algebra

    solve by the elimination method 3x+4y=3 6x+8y=6 help please

    asked by a
  107. Conflict Management Communications

    Think of a recent conflict, and now create a metaphor or figure of speech (simile) that summarizes the experience of it. What aspects of the experience does the metaphor emphasize? Does it focus on constructive or destructive aspects of the event or

    asked by Crystal
  108. math

    solve. 3/x - 1/3 = 1/6

    asked by judith
  109. algebra

    Translate to an inequality. The average speed, s, was between 100 and 110 mph. Translation: 100_ s _ 110

    asked by Sharone
  110. algebra 1

    Solve each linear system by substitution method. x+2y=7 2x+4y=8 I'm getting stuck. Could some one explain the work out process and what the outcome means?

    asked by Chica
  111. Stats

    The distribution of SAT verbal scores of University X's incoming freshman class (N=950) has a mean of 475. What is the value for the sum of deviation scores from the mean of this distribution?

    asked by Jill
  112. algebra

    0.4x+4

    asked by help
  113. college physics

    Let's say that you find a slope of 6.671×10-14 for square plates of width 11.5 cm. What do you get for the value of the permittivity of free space?

    asked by Alexandra
  114. physics

    As a result of doing work a person supplies a machine with 1100 J of energy in 12 seconds. The machine in turn does work and delivers 900 J of energy in 14 seconds to some object. what is the effiecency of this machine?

    asked by CB
  115. grammar

    They have endeared me by just being themselves and helping me learn to appreciate the imagination, creativity, and personality inside of them.

    asked by alisa
  116. physics

    A ball is kicked at ground level with a speed of 15.0 m/s at an angle of 35.0° to the horizontal. How much later does it hit the ground?

    asked by Anonymous
  117. French/Sra

    J'aime faire du shopping au centre commercial et aux grands magasins. Mes amis uniquement font du shopping au centre commercial. J'aime porter des t-shirts longs, jeans, pantalons, pulls, et ce que je suis comfortable dans l'école. Les vêtements que

    asked by Anna
  118. spelling

    Hi my name is Lily. This is the first time I am oing o be in a spelling bee. Our class is practicing my teacher will choose three students I really want to be one of them can you please help me so I can have a good peperation? Thank You in advance

    asked by Lilly
  119. spanish

    what does la piz mean?

    asked by carnell
  120. Literature

    If in Shakespeare's time, the women roles were played by trained boy actors, how did they do romantic scenes? For example, the balcony scene in Romeo and Juliet or when they had to kiss? Thanks -MC

    asked by mysterychicken
  121. Math

    in a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely?

    asked by Judy
  122. English

    I am asked to describe the "syntax" of a book I am reading. I have looked up several definitions of the word and still do not understand what it means.

    asked by Peter
  123. chemistry

    what is the difference between electron affinity and ionization energy?

    asked by Jeremy
  124. CHEM

    rank the fallowing elements by increasing atomic radius: carbon, aluminum, oxygen, potassium. please help!

    asked by Jay
  125. algebra

    help please the equation of y= 1777x+27,153 can be used to predict the number yof gun deaths in the united states after 2000 that is x=0 corresponds is x=2000x=3 x=correspopnds to 2003 x=6 corresponds to 2003 abd so on predict the number of gun deaths in

    asked by at
  126. algebra

    8x-(4x+6)=2 the solution is x=

    asked by help
  127. organic chemistry

    Which of the following minor products could not arise from the halogenation reaction below? isobutane + Br2 ----> 1-bromo-2-methyl propane + HBr + minor products a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4

    asked by Bengali
  128. Chemistry

    Assuming it behaves as an ideal gas, calculate the temperature of a sample of He whose molecules have an average translational kinetic energy of 1.14E-23 kJ/molecule.

    asked by Sammy
  129. Trig

    Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line segment OP makes with the positive x-axis. the answer is 5.86 radians but i keep getting 0.418 radian. please help and show work

    asked by Drew
  130. trig

    Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.

    asked by Matt
  131. nutrition

    What arguments are being raised by the Grocery Manufacturers of America?

    asked by bala
  132. chemistry

    now am stuck on how to find the grams of X+Y=1.10 X for glucose and Y for sucrose i had 3.78=M0.08206*298 3.78/24.45=0.1546M 0.1546*0.025=0.003865 moles. now am stuck. help please

    asked by bf
  133. algebra

    a cable is cut into 2 pieces. One piece is twice as long as the other piece. Find the length of each piece of cable

    asked by brooke
  134. PHYSICS

    The force applied by the e-brake is F(eb) = m*a(eb) = -8.13*1452 = -12,100 N I didn't get the same answer - I got 11,804.76....please check

    asked by SAMIR - ATTN DRWLS- QUICK QUESTION
  135. algebra

    Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 10:10 P.M. If train B passes the same station at 10:25 P.M. at what

    asked by heather
  136. Early Childhood Growth and Development

    What a child repeats a behavior or action simply to observe that action, you would not infer that

    asked by Michelle
  137. Trigonometry

    You are stationed at a radar base in Warner Robins, GA and you observe an unidentified flying object at an altitude of 2000 m flying towards your radar base at an angle of 20 degrees. How far away from the radar base is that plane (hypotenuse)?

    asked by Jake
  138. Chemistry

    An unknown was prepared with the concentration of 0.000630 M. A Beer's Law plot was prepared using the absorbance values from standard solutions of ASA and a line drawn through all the points passed through the origin with a slope of 1550.2 M–1. The

    asked by Anonymous
  139. Trigonometry

    A=30 degrees, a=9 and b=8. Find the missing sides/angles. I did cos39=x/8 and reduced that to 8cos39=x. I got 6.92. But that's not a valid answer, so I can't go from there. What did I do wrong? Can you show me how to get the other answers as well, please?

    asked by Janie
  140. Algebra

    A woman driving a car 14 ft long is passing a truck 30 ft long. The truck is traveling at 50 mi/h. How fast must the woman drive her car so that she can pass the truck completely in 6s?

    asked by Sara
  141. math

    Three men walk inside a hotel and decide to stay for the night. They pay the price of $30 by splitting it so they each pay $10. They go up their room, but then the manager realizes that the price that night is $25 dollars so he sends $5 dollars up with the

    asked by Amy
  142. physical geography

    i need to know how the elements of the planets,ie... solids, liquids,gasses and factoring in gravity and temperature combine to dictate their position from the sun?

    asked by danielle
  143. PHYSICS

    Consider a one layer atmosphere for the planet Venus. 19% of incoming solar radiation is absorbed by the atmosphere. 99% of the outgoing radiation is absorbed by the atmosphere. The incoming radiation, E, as measured by satellite is 615 Wm-2. 1) Derive two

    asked by Bubbles
  144. chemistry

    Which of the following minor products could not arise from the halogenation reaction below? isobutane + Br2 ----> 1-bromo-2-methyl propane + HBr + minor products a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4

    asked by rafael
  145. algebra

    the funcation h described by h (x)=2.75+71.48 can be used to predict the height in centimeters of a women whose humerus is x cm long. the predicted height of a women whose 32 cm long is

    asked by at
  146. pre algebra

    60 -(6/1 +40/8)

    asked by aurora
  147. algebra

    a+b for a=34 and b=2 ____ 6 a+b= ______ 6 i don't get this

    asked by help
  148. communication

    Class, you have probably heard of 'Group think', in which members of a group basically agree with each other, regardless of how they personally feel about an issue. My question to you is, how does this impact healthcare decision making? Is this something

    asked by Anonymous
  149. algebra

    Area of a square find a polynominal A(X) that represents the area of the shaded region u have a square with an arrow pointing left and right at top of the square with x @ the top and a arrow up and down on the right side of the square.The #3 on the right

    asked by Tanya
  150. reiny

    How do I find a variance for a set of numbers {1,16,8,17,12} I got that variance-34.2, but I'm unsure. Any help? Thanks. math - Reiny, Sunday, January 24, 2010 at 8:16pm look at his page. Reiny - April, Sunday, January 24, 2010 at 8:25pm I looked at that

    asked by April
  151. algebra

    -1x=-5 __ __ 2 6 x=

    asked by at
  152. Trigonometry

    Two men on the same side of a tall building notice the angle of elevation to the top of the building to be 30 dgrees and 60 dgrees respectively. If the height of the building is known to be h equals 60 m, find the distance (in meters)btween the 2 men.

    asked by Drake
  153. math

    find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons.

    asked by chris
  154. Finance Anaylsis

    If a firm is expected to have a profit margin of 8 percent but trades at a price to sales ratio of 25, what inferences would you make?

    asked by sam
  155. geometry

    A pyramid must have all equilateral triangles for faces for it to have an axis of symmetry. True or False? I thought maybe true, but I couldn't find it anywhere in my text saying yes or no. Help please?

    asked by April
  156. Physics

    This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?

    asked by Jeremy
  157. algebra

    a)using intercepts, graph the three lines 4x + y - 8=0, 2x - y - 4=0, x + 2y - 16 = 0

    asked by bob
  158. algebra

    50% of what number is 10?

    asked by me
  159. College Physics

    If the uncertanty in the slope is 1.214×10-14, is the measured value of ε0 within experimental uncertainty of the accepted value? (Yes or No)

    asked by Marie
  160. English

    What are examples of Juxtaposition in Hamelet?

    asked by Anonymous
  161. French/Sra

    J'ai besoin de nouvelles chaussures noires. Je vais en avoir besoin pour la gym. J'ai besoin d'une nouvelle tee-shirt rouge. J'ai besoin d'un nouveau jean bleu. J'ai besoin des nouvelles sandales blanches. J'ai besoin d'une nouvelle robe noir. I need one

    asked by Anna
  162. arithmetic

    Find the sum of the 25th term to 50th term of the arithmetic progression 28,23,18, ...

    asked by Eryea
  163. chem

    why does fluorine have a higher ionization energy than iodine?

    asked by samuel
  164. algebra

    -6x>1/13

    asked by a
  165. calculus

    A ship is running at 14 3/4 knots (nautical miles per hour) for 7 1/2 hours. How far does the ship travel?

    asked by Jammie
  166. math/probability

    Assume that the weight loss for the first two months of a diet program has a uniform distribution over the interval 6 to 12 pounds. Find the probability that a person on this diet loses more than 11 pounds in the first two months.

    asked by katie
  167. math

    find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons

    asked by chris
  168. Social Studies

    What were the 4 dynasties of Ancient China ? Please give me information on each one regarding government, social hierarchy, religion and accomplishments.

    asked by Sophia
  169. chemistry

    can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

    asked by anon 101010
  170. math-functions

    Given g(x)=px+q where p and q are constants.If g^2(x)=16x+15 find the possible values of p and q?

    asked by Nicholas Lim
  171. organic chemistry

    How would using sodium fluoroacetate instead of sodium chloroacetate affect the reaction? This experiment was to synthesis of plant hormone. and If sodium iodoacetate is used instead of sodium chloroacetate, how will the rate of reaction be affected?

    asked by tweety
  172. English

    Thank you for your last suggestions Can you tell me if the following statements are all possible? 1) Antony stirs the crowd against Brutus 2) He turns the crowd against him 3) He urges/incites the crowd to mutiny against him 4) Is this sentence still

    asked by Franco
  173. English

    What is the prepositional phrase and what is the word that modifies it in the following sentences? 1. Many stars together create cloudy bands of light. 2. Traveling clouds of dust are called nebulas.

    asked by Dilinda
  174. socials

    what were some of the military of the Civil War on americnas.

    asked by Anonymous
  175. Chemistry

    Select all cases in which the attraction between units in the solid can best be classified as individual atom induced dipole forces. Y2O3 NH3 H2S ZnBr2 Cu KrF4 None I honestly do not know what to do. I know dipole dipole is positive and negative but this

    asked by Anonymous
  176. business statistics

    1.to measure how much the cost of some variable changes over time, you would use? 2.if an index number calculation over 8 years with a base value of 100 gave an index for 1993 of 110, what would be the percentage relative for 1993?

    asked by mirjee
  177. PHYSICS - please check my work

    pete and john play a game of tug war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2. Sarah decideds to join the game as well. Now pete pulls on Sarah

    asked by SAMIR
  178. math

    how do I solve : 1/2 + 2/x =3/4. thanks for helping!

    asked by julia
  179. French

    You decide to enter a contest for a shopping spree at your favourite clothing store. Write a paragraph describing what new clothes you need for summer and why you need them. Include the color of 5 articles of clothing that you would like and what

    asked by Anna
  180. 7th grade science

    the human skeleton has how many bones?

    asked by mary
  181. college

    if you take a $1000.00 and add 6% over 48 years how much would you have

    asked by allison
  182. Physics

    Describe the path of a moving body whose acceleration is constant in magnitude at all times and is perpendicular to the velocity.

    asked by anne
  183. eng gr 9

    hi can you please tell me adjectives to describe characters from midsummers night dream and from curious incident of the missing dog in the night time

    asked by Anonymous
  184. PHYSICS

    CAN SOMEONE PLEASE CHECK THE LAST PART OF THIS QUESTION? pete and john play a game of tug war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2. Sarah

    asked by SAMIR
  185. algebra

    collect like terms 12m+5n -10m-7n=

    asked by me
  186. algebra

    The charge for admission into the concert is $2.75 for adults and $1.50 for childeren. If 589 people paid to get into the concert and $1151 was collected, find the number of adults and the number of childeren who paid for tickets.

    asked by brooke
  187. math

    Help! Solve: 1. 3x + 15 = 0 2. 6x + 18 =0 thanks!

    asked by Kris
  188. organic chem!

    when trying to purify aspirin, why would i have to add hot water to the crystals that are formed, and then recool the crystals? what does this do to the crystals?

    asked by chrissy
  189. algebra

    is there a solution to this problem.. x+3y=5(1) x+4-3x(2)

    asked by at
  190. math

    How do you work out 7.00 x 4.78

    asked by Anonymous
  191. Geometry.

    HELP WITH ALOT OF QUESTIONS? TRIG? I don't get any concepts.

    asked by Amy.
  192. grammar

    what is the predicate adjective and participle in this sentence? Nearly a hundred years later, a talented ballet dancer appeared in the same city.

    asked by kali
  193. Communication Language Studies

    Have the use of war metaphors gone too far? More specifically, does it matter? that is, do these metaphors really influence how people think and act about movies, sports, politics and "real" wars? I would appreciate any feedback! Thanks!

    asked by Audrey
  194. Comp150.

    What kind of supporting paragraphs would go with the following topic?Scientist have discovered human remanis thought to be more then 2 million years older then Lucy Explain why

    asked by Lilly
  195. psychology

    what is an example of effort justification

    asked by melissa
  196. French/Sra

    J'ai besoin de nouvelles chaussures noires. Je vais en avoir besoin pour la gym. J'ai besoin d'une nouvelle tee-shirt rouge. J'ai besoin d'un nouveau jean bleu. J'ai besoin d'une nouvelle sandales blanches. J'ai besoin d'une nouvelle robe noir. I need one

    asked by Anna
  197. physics

    What must a muscle do in order to do work?

    asked by Tommy
  198. English

    Can you check these sentences for me and help me find suitable synonyms? 1) Julius Caesar has just come back from a victorious (or triumphant) battle against his rival Pompey 2) Where has J. just come back from? 3) Some of his followers plot (synonym)

    asked by Franco
  199. Health care

    Measuring the quality of care and areas of patient care needs improvement.

    asked by Johnny
  200. PHYSICS!!!

    If a machine cant multiply the amount of work , what is the advantage of using such a machine?

    asked by Carly!!!!!
  201. PHYSICS!!!

    If a machine cant multiply the amount of work , what is the advantage of using such a machine?

    asked by Carly!!!!!
  202. algebra

    is 7 less than or greater than -12

    asked by a
  203. algebra

    the circle to the right has 21 points. All possible line segments have been drawn. How many line segments are there?

    asked by Leyla
  204. 8th grade

    hi, if 20 oz of fish cost 4.59, how much would 6, 12, and 36 oz cost? how would i plot this on graph paper? thank you! maribeth

    asked by maribeth
  205. math

    Krista has $0.85 in nickels and dimes. She has 2 more nickels than dimes. How many nickels does she have?

    asked by Clara
  206. cultural diversity

    ethnocentrism

    asked by Anonymous
  207. math

    The equation 9c-5f+160=0 describes the relationship between temperature, C, in degrees Celsius, and temperature, F, in degrees Fahrenheit. b)graph this relation.

    asked by dylan
  208. math

    how do I solde this equation? pls help.. 1. 3/2x + 2 = 1/2 - 1/2x

    asked by laura
  209. calculus

    Solve for all real values of x. 3tan^2x = 3^1/2 tan x I have no idea how to approach this problem.

    asked by Tracy
  210. math

    The slopes of the two lines are given. Conclude whether the lines are parallel, perpendicular, or neither. a)m=2/3,m=4/6 b)m=3/4,m=-4/3 c)m=2,m=-2 d)m=1,m=-1 e)m=1/5,m=0.2 f)m=2 1/4, m=-4/9

    asked by dylan
  211. english

    what is needed to combine two sentences with a comma

    asked by erin
  212. spanish 2

    Which question is addressed to "usted" (talking to someone with formal respect)? Con quien hablaste? ¿De qué hablaste? ¿Cuánto tiempo estuviste en el teléfono? Que compraste en la tienda? ¿Que hiciste después ¿Te dormiste al colgar el teléfono? Te

    asked by kate
  213. physics

    the oxidation numbers of the elements in a compound must add up to

    asked by meir
  214. Financial matters

    how does fund accounting handle depreciation

    asked by PEEWEE
  215. physics

    the oxidation numbers of the elements in a compound must add up to what

    asked by meir
  216. Financial matters

    what are the strengths and weakness of accrual , cash flow and fund accounting?

    asked by PEEWEE
  217. Science

    what is the difference between RNA and DNA?

    asked by Lynn
  218. finance

    the Wrights found that both Tom and Sue had a life insurance protection gap of $50,000. Present the steps in sequence how Wrights should proceed to search for protection to close that gap?

    asked by vickie
  219. math

    how would i write this in an equation?if f is equal to or less than g than h must be equal to or pluss x

    asked by armando
  220. chemistry

    can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

    asked by anon 101010
  221. maths

    iam a common multiple of 3 & 7 my digits have a total of 9

    asked by derek
  222. algebra

    here is a tough one for me simplify -6[93-(-95-18)]= help please

    asked by a
  223. algebra

    solve -0.8x

    asked by me
  224. biology

    __________________ charcters show many degrees of variation because they result from the additive effects of several ____________. Many human conditions are complex because they are influenced both by ___________ and by ___________. If two genes cross

    asked by brooke
  225. Math

    Write the equation of the line in slope intercept form that is parallel to y=-2+11, and passes through the point (4,2).

    asked by Kat
  226. English

    I was wondering if someone could tell me how I can improve my thesis statement/opening paragraph. I'm writing an essay on hamlet from the perspective of formalism (examining a work of literature's language and structure). Here it is: Formalism is a type of

    asked by Valerie
  227. calculus

    A ship is running at 14 3/4 knots (nautical miles per hour) for 7 1/2 hours. How far does the ship travel?

    asked by Jammie
  228. CHEM

    can u rank the fallowing elements by increasing electronegativity: sulur, oxygen, neon, and aluminum. please help!

    asked by Jay
  229. Chemistry

    how do you find the molar volume of a gas?

    asked by Tasha
  230. Chemistry

    a few drops of NaOH are added to a sample of the unknown. A blue precipitate appears. Next, approximately 1mL of ammonia, NH3, is added. The precipitate dissolves, but the solution remains blue. Which ion is present. Explain

    asked by Reen
  231. adult education

    what are three most important steps in adult program planning

    asked by jones
  232. health care coverage

    what can be some major issues for unisured children?

    asked by april
  233. aspirin

    during the synthesis of aspirin, why do the crystals mostly form when the test tube is placed in the ice bath and not before?

    asked by chrissy
  234. Physics

    As one exhales, what change in energy takes place between the diaphragm and the air in the lungs?

    asked by Anonymous
  235. Physics

    A particular machine has "mechanical disadvantage". What is the purpose of using such a machine?

    asked by Anonymous
  236. math

    THE LETTERS A TO K REPRESENTS A DIGIT. WHAT DIGIT DOES EACH LETTER REPRESENT? THERE IS MORE THAN ONE POSSIBLE ANSWER. A) A A A A + B B B B C C C C A=? B=? C=? B) D D D + E E E F F F G D=? E=? F=? G=? C) H H H + I I I J H H K H=? I=? J=? K=?

    asked by KHALLED
  237. algebra

    5+5x

    asked by help
  238. algebra

    How do I writeeach decimal as a fraction in simplest form?

    asked by Damian
  239. Public Speaking

    where can i find a list of people or several people who perform interpersonal communication skill well. Im looking for example i can draw from to see what behaviors would be useful to incorporate into my own repertoire?

    asked by Bryan
  240. Math 7th grade

    34/6=(2x+1)/3

    asked by Jake
  241. Finance

    Cooper Inc's latest EPS was $4.oo, its book value per share was $20.00, it had 200,000 shares outstanding, and its debt ratio was 40%. How much debt was outstanding? a. $2,333,333 b. $2,666,667 c. $3,000,000 d. $3,333,333 e. $3,666,667

    asked by Carry
  242. algebra

    on three consecutive passes a football team gains 8 yards loses 39 yards and gaons 13 yards what number represents the total net yardage?

    asked by me
  243. Statistics

    Are large or small data sets more appropriate for using perecentiles to summarize data? Why?

    asked by Anonymous
  244. PHYSICS

    Phobos is the larger and closer of Mars’s two moons. It has no atmosphere, a mean radius of 11 km, an albedo of 0.07, and an emissivity of 1.0. (i) Assuming that the radiative temperature of Phobos is 222 K and that it is spherical, what is its mean

    asked by physics help!
  245. Math

    How would you graph the inequality x > -5

    asked by Dan
  246. French

    The class that you exchange e-mail messages with in France is interested in learning about teen's shopping habits in north America. Write a short paragraph describing where you and your friends like to shop and what you like to wear at school. Tell how

    asked by Anna
  247. biology

    How does the orientation of the phospholipids in the bilayer allow a cell to interact with its internal and external environment?

    asked by haleigh
  248. Math

    How would you graph the inequality x > -5

    asked by Dan
  249. niu

    he Declining Fish Stock VLR located under the Week Six Materials section of your course materials. · Write a 500- word paper in APA format that includes the following: o A brief description of the water resource problem in the video and how it originated.

    asked by tomika harris
  250. spelling

    Hi. I want to know how i can defeat a hard word in a spelling bee competition? Thank You in advance

    asked by Lilly
  251. Geography

    Where is Wales located in relation to London? Thanks! (:

    asked by Thea
  252. science project

    I have a magnet on top of my hand and a steel screw underneath my hand and there is attraction. If I give it to an adult it doesn't work. Why?

    asked by shannan
  253. English

    What is the modifier of the prepostional phase and what kind of prepostional phrase is it? Adverb or Adjective? 1. Its invention in 1978 revolutionized technology. 2. The microwave oven was invented in 1946.

    asked by Jenna
  254. math

    Describe what happens to the three points of concurrency that determine the Euler line when the triangle is (a) isosceles, (b) equilateral.

    asked by BB
  255. Trigonometry

    "Sketch the graph of y=tan(x/2) By solving the equation x/2=-pi/2 x=- pi and the equation x/2=pi/2 x=pi..." Before I go any further, I need to understand where these equations came from. Where does the pi come from out of thin air? What becomes of the

    asked by Ellyn
  256. chemistry

    can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

    asked by anon 101010
  257. math

    a square has a length of 5 inches. Then it is increased by 20%. Then the same square has a width of 10 inches and it is increased by 10%. How Many Percents has the area of the square been increased By? Thanx 4 your Help

    asked by qwertyuiop
  258. science

    explain the order of the planets due to the external environments by becoming solids, liquids, or gases. In the case of planet ordering, external environmental factors of gravity and temperature combine to dictate position from the Sun.why?

    asked by danielle
  259. Art history

    What were the key goals of the Italian, Dutch, and Spanish Baroque art periods?

    asked by AL 87
  260. percipitate and colour

    a few drops of NaOH are added to a sample of the unknown. A blue precipitate appears. Next, approximately 1mL of ammonia, NH3, is added. The precipitate dissolves, but the solution remains blue. Which ion is present. Explain

    asked by Reen
  261. English 1

    Can someone analyze this I have no idea what it means its from the poem substance, Shadow, and Spirit You had better go where fate leads. Drift on the stream of infinite flux Without joy, without fear: When you must go-then go And make a little fuss as you

    asked by Andrea
  262. Algebra

    is 6x+6yards if the width is x yards find a binominal that represents the length

    asked by Tanya
  263. medical record

    deficiency form is compiled as a consequence of

    asked by Anonymous
  264. science

    What determins how quickly or slowly of a moving object changes position

    asked by pj
  265. PsyDAG

    Thanks so much for the help with my narrative last night! =) -MC

    asked by mysterychicken
  266. PHYSICS

    Can a car move around a racetrack so that it has tangential acceleration byt no centripetal acceleration?

    asked by hailey