Questions Asked on
January 16, 2011

  1. Business

    I am trying to write a 1500 words review of two articles that are discussing ethical perspectives or business ethics for two countries. Each article must contain info. on a different foreign country on a different continent; for example, if the first

    asked by kim
  2. physics

    A model rocket leaves the ground, heading straight up at 47 m/s. (a) What is its maximum altitude? m What are its speed and altitude at each of the following times? (b) 1 s m/s m (c) 4 s m/s m (d) 8 s m/s m

    asked by Jen
  3. Physics

    Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges?

    asked by Pablo
  4. physics

    a ladder AP of length 5m inclined to a vertical wall is slipping over a horizontal surface with velocity 2m/s , when A is at a distance 3m from ground . what is the velocity of centre of mass at this moment?

    asked by jerf
  5. chemistry

    If 0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.

    asked by noel
  6. Geometry

    Find the area of the following ellipse (round to nearest tenth). 2a = 10 cm; 2b = 24 cm. a = How many cm2?

    asked by Ivan
  7. physics

    a student standing on the roof of a 50 meter high building kicks a stone at a horizontal speed of 4 meters per second, how much time is required for the stone to reach the level ground below?

    asked by jack
  8. Chemistry

    Rank the following fertilizers in decreasing order of mass percentage of nitrogen: NH3 NH4NO3 (NH4)2HPO4 KNO3 (NH4)H2PO4 (NH4)2SO4

    asked by Anonymous
  9. Math

    If two trapezoids have the same area, do they always have the same perimeter? Explain your thinking with words and diagrams.

    asked by pretty
  10. chemistry

    Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is

    asked by noel
  11. Chemistry

    0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.

    asked by noel
  12. chemistry

    0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and 1.2x10^-10 respectively

    asked by emoni
  13. chemistry

    Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80.

    asked by rena
  14. physics

    on the surface of earth, a spacecraft has a mass of 2.00x10^4 kilograms. What is the mass of the spacecraft at a distance of one earth radius above earths surface?

    asked by jill
  15. physics

    A student pulls a 60 newton sled with a force having a magnitude of 20 newtons. what is the magnitude of the force that the sled exerts on the student?

    asked by jill
  16. Chemistry

    If 100. mL of 0.400 M Na2SO4 is added to 200. mL of 0.600 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.

    asked by emoni
  17. Chemistry

    An electron in a hydrogen atom could undergo any of the transitions listed below, by emitting light. Which transition would give light of the shortest wavelength? n=4 to n=2 n=3 to n=1 n=2 to n=1 n=4 to n=1

    asked by Job
  18. physics

    A large box whose mass is 20 kg rests on a frinctionless floor. A mover pushes on the box with a force of 250 N at an angle of 35 degrees below the horizontal. What is the acceleration of the box across the floor?

    asked by Brian
  19. chemistry

    What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 25.00 mL of 12 M NH3 in enough water to make 1.000 L of solution? Kb = 1.80 x 10-5 for NH3.

    asked by emoni
  20. Physics

    A startled armadillo leaps upward, rising 0.515 m in the first 0.203 s. (a) What is its initial speed as it leaves the ground? (b) What is its speed at the height of 0.515 m? (c) How much higher does it go?

    asked by Ethan
  21. Geometry

    Compute the area of a triangle with sides. 15 × 15 × 18 a = How many square units?

    asked by Ivan
  22. Biology!!

    Darwin is considered the "father of evolutionary biology." Four of his contributions to the field of evolutionary biology are listed below. The nonconstancy of species. Branching evolution, which impleies the common descent of all species. occurrence of

    asked by Mary
  23. Geometry

    A gardener is installing a circular garden. The radius of the circle 28 feet. He needs to know the circumference in order to buy materials for the edging. What is the circumference if he uses = 22/7. The circumference is ?

    asked by Ivan
  24. thermodynamic

    A heat pump is proposed that uses 50 degree F ground water to heat a house to 70 Degree F. The groundwater experiences a temperature drop of 12 degree F. If the house require 75,000 Btu/hr, Calculate the minimum mass flux of the groundwater and minimum HP

    asked by chris
  25. Computer Science

    a)385 data loss incidents took place b)110 million people were affected by personal data loss incidents c)3% of all data loss incidents were caused by hard copy theft/loss d)20% of all data loss incidents were caused by portable media theft/loss e)15% of

    asked by Sue
  26. physics

    A motorist drives along a straight road at a constant speed of 15.0 m/s. just as she passes a parked police officer,the officer starts to accelerate at 2.00 m/s^2 to overtake her. assuming the officer maintains this acceleration, a) determine the time it

    asked by kevin
  27. Economics

    When policymakers set prices by legal decree, they...? a. obscure the signals that normally guide the allocation of society’s resources. b. are usually following the advice of mainstream economists. c. improve the organization of economic activity. d.

    asked by Anonymous
  28. Physics

    Two people are carrying a uniform 788.0 N log through the forest. Bubba is 2.0 m from one end of the log (x), and his partner is 1.1 m from the other end (y). The log is 6.2 m long (z). What weight is Bubba supporting?

    asked by Joan
  29. physics

    A 16.0-m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a 63.0° angle with the horizontal. (a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 850-N firefighter has climbed

    asked by mee
  30. physics

    The electric field midway between two equal but opposite point charges is 825 N/C, and the distance between the charges is 9 cm. What is the magnitude of the charge on each?

    asked by stesha
  31. chemistry

    At 25 °C, the density of a 50 % (by mass) ethanol/water solution is 0.914 g/cc. Given that the partial molar volume of water in the solution is 17.4 cc/mol, what is the partial molar volume of the ethanol?

    asked by syl
  32. Physics

    If the output piston in a hydraulic pump exerts a greater force than one applied to the input poston, is the pressure at the outpit piston also larger than at the input piston? Im really not even sure how to go about this question.

    asked by Abida
  33. physics

    A car P is moving with uniform speed of 5m/s towards a carriage of mass 9kg at rest kept on the rails at point B. the height of AC is 120m.cannon balls of 1kg are fired from the car with an initial velocity of 100m/s at an angle 30 degree with the

    asked by sreeram
  34. physics

    How many uniform, identical textbooks of width 25.0 cm can be stacked on top of each other on a level surface without the stack falling over if each successive book is displaced 3.00 cm in width relative to the book below it? If the books are 5.00 cm

    asked by melissa
  35. Geometry

    a = 12 cm b = 14 cm h = 8 cm. Compute the area. How many cm2?

    asked by Ivan
  36. Chemistry

    Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 degrees celcius ? The freezing point for pure water is 0.0 degrees celcius and Kf is equal to 1.86 degrees

    asked by Nikita
  37. Chemistry

    Could someone help me with this question? A vinegar sample was analyzed and found to be 5.88% acetic acid by volume. The density of pure acetic acid is 1.409g/ml. What volume of 0.200 M NaOH would be required to titrate a 2 ml aliquot of this vinegar.

    asked by Tyler
  38. Physics

    A laser emitting at 632.8nm illuminates a double slit. A screen is positioned 2.00 m from the slits. Interference fringes are observed with a separation of 1.0 cm. (a) Determine the separation of the slits. (b) Determine the angle of the first-order dark

    asked by Tom
  39. Geometry

    A square measures 8 inches on each side. What is its area rounded off to the nearest whole number. (Note: 1 inch ≈ 2.54 cm)

    asked by Ivan
  40. trig

    When the sun's angle of elevation is 30 degree the shadow of a post is 6 ft longer than when the angle is 45 degree. find the height of the post

    asked by Cas'
  41. Chemistry

    A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting

    asked by Patrick
  42. Geometry

    Find the area of the following ellipse (round to nearest tenth). a = 9 in.; b = 8 in. a = How many sq. in.?

    asked by Ivan
  43. Chemistry

    C2H2(g) + 2 H2(g)--> C2H6(g) Information about the substances involved in the reaction represented above is summarized in the following tables. Substance/ So (J/mol∙K) /∆Hº!@#$%^&J/mol) C2H2(g) / 200.9 / 226.7 H2(g) / 130.7 / 0 C2H6(g)/ ?? / -84.7

    asked by Brenda
  44. Geometry

    Find the area of the following circle. ( = 3.14; round answer to the nearest whole number). Circumference = 120 cm. (Hint: Find r from C = 2r (round r to tenths); then find area).

    asked by Ivan
  45. British Literature

    Authors uses literary devices such as foreshadowing,symbolism,similes,metaphor,personification, and allusions. What are two literary devices used in Jane Austen Sense and Sensibility. explain how it contributes to the novels setting or the plot.

    asked by Seleta
  46. Chemistry

    A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting

    asked by Patrick
  47. Statistics

    The United Nation declared that the world's six-billionth inhabitant was born on October 12, 1999 in Bosnia. Don't discuss what is not said. Discuss what is said

    asked by Brandi
  48. Physics

    A solid of mass 400g in air and when partly is immersed in a certain liquid it has a mass 320g. Given that the relative density is 0.8. Calculate the volume of the solid immersed in the liquid.

    asked by Asamoah
  49. Physics

    During a hard sneeze, your eyes might shut for 0.58 s. If you are driving a car at 92 km/h during such a sneeze, how far does the car move during that time?

    asked by Ethan
  50. history

    In the Middle and Southern colonies, how was education for poor girls was accomplished

    asked by Carnita
  51. education

    what was the most significant reason for the decline of the Latin Grammar School

    asked by Carnita
  52. physics

    a ladder AP of length 5m inclined to a vertical wall is slipping over a horizontal surface with velocity 2m/s , when A is at a distance 3m from ground . what is the velocity of centre of mass at this moment?

    asked by sreeram
  53. Biology 12-DNA

    suppose you knew the makeup of specific proteind in a cell. how would you determine the particular DNA code that coded for them?

    asked by Anonymous
  54. HISTORY

    Write a short paragraph that traces the rise of Japan from an isolated society to a major industrial and imperial power. I have to write an essay, so if you can write me a short paragraph that answers and summarizes my question, then I can write my essay.

    asked by Lauren
  55. Geometry

    Find the area of the following circle. r = 9 yd. a = How many square yards?

    asked by Ivan
  56. poetry

    which poem sounds the best and easier to anaylze and explain to others about? Im gonna present this to grade 12th english class. Help me pick the best poem. Thank you so much! answer me ASAP guys! 1. By Audre Lorde I am fourteen and my skin has betrayed me

    asked by candybar
  57. physics

    Two point sources, 5.0 cm apart are operating in phase, with a common frequency of 6.0 Hz, in a ripple tank. A metre stick is placed above the water, parallel to the line joining the sources. The first nodal lines (the ones adjacent to the central axis)

    asked by ali
  58. physics

    The punter on a football team tries to kick a football so that it stays in the air for a long "hang time." If the ball is kicked with an initial velocity of 23.0 m/s at an angle of 58.5° above the ground, what is the "hang time"?

    asked by shannon
  59. Physics

    1. Could a horizontal axis of rotation be used satisfactorily in an experiment uniform circular motion? Explain

    asked by Andrew
  60. Physics

    Find the position and velocity of a particle at t=1.94 s if the particle is initially moving east at a speed of 19.8 m/s and experiences an acceleration of magnitude 4.08 m/s^2, directed west. Magnitude and direction of the position. magnitude- direction-

    asked by Christopher
  61. physics

    a physics book is on top of a drafting table at 35 degree angle. Find the net external force acting on the book and determing wether the book move or remain at rest on this position. they give you: force of friction 11N, force normal 18N,force of gravity

    asked by Grace
  62. AED 204

    Write a 350- to 500-word statement that reflects on how your ethnicity influences your personal behavior, attitudes, and values. While my ethnicity is important to me, it does not control me or who I am. Ethnicity can influence my personal behavior,

    asked by Kayla
  63. physics

    a plank of mass 5kg is placed on a frictionless horizontal table. further a block of mass 2kg is placed over the plank. A mass-less spring of natural length 2m is fixed to the plank by its one end. The other end of spring is compressed by the block by half

    asked by jessy
  64. Calculus

    Here is the problem I am working on: Romeo is commissioning the construction of a four-inch-tall box made of precious metals to give to his bride, Juliet. The jewelry box will have rectangular sides, a bottom and a top. The longer sides and the top will be

    asked by Jill
  65. NWFSC

    A 277 oscillator has a speed of 122 when its displacement is 2.90 and 47.5 when its displacement is 6.80. What is the oscillator's maximum speed?

    asked by Tony Hart
  66. physics

    A wave of amplitude 0.37 m interferes with a second wave of amplitude 0.18 m is traveling in the same direction. What is the largest resultant amplitude that can occur?

    asked by Tanner
  67. Accounts

    On a worksheet, the adjusted balance of the Depreciation Expense account is extended to the __________ column. (Points: 5) Income Statement Debit Income Statement Credit Balance Sheet Debit Balance Sheet Credit I dnt understand what is meant by this any

    asked by Lisa
  68. math

    Given the expression (3s-4)(4s+5), explain in words the steps taken to completely simplify the expression

    asked by tanya
  69. MATH

    In an arithmetic sequence, the first term is 100 and the sixth term is 85. Find the common difference. Then, find the 50th term of the sequence. Do I use the formula an=a1+(n-1)d? If so, what would my "n" by in the equation?

    asked by lYDIA
  70. accounting

    BISHOP COMPANY Inv. No. Check Date Description Name or Date No. Terms Amount Mar. 1 Received merchandise and invoice Soy Industries Mar. 1 2/15, n/30 42,600 2 Merchandise sold (cost $7,900) Min Cho 854 2/10, n/30 15,800 3 Purchased office supplies Stacy

    asked by zion
  71. accounting

    CHOI ENTERPRISES Inv. No. Check Date Description Name or Date No. Terms Amount Dec. 16 Merchandise sold (cost $4,600) Hanna Seppa 916 2/10, n/30 $7,700 17 Received credit memo on returned merch. Funk Company Dec. 15 1,040 17 Purchased office supplies KK's

    asked by zion
  72. physics

    a uniform bar of mass is supported by support pivoted at top about which bar can swing like simple pendulum. If force F is applied perpendicular to lower end of the bar.How big F must be in order to held the bar in equilibrium.

    asked by bharat narke
  73. math

    x-3y=1 x2-2xy+9y2=17 solve simalteneously

    asked by motlhalefi
  74. physics

    a plank of mass 5kg is placed on a frictionless horizontal table. further a block of mass 2kg is placed over the plank. A mass-less spring of natural length 2m is fixed to the plank by its one end. The other end of spring is compressed by the block by half

    asked by sreeram
  75. Algebra

    Find the indicated outputs for f(x)=¡¼5x¡½^(2 )-2x f(0)= f(-1)= f(2)=

    asked by Terry
  76. math

    Cassandra is repaying an installment loan of 3,500 with 20 equal payments of 196.00 each.What is the annual percentage rate of the loan? A. 7.55% B.11.16% c 12% d.13.25%

    asked by Jessie
  77. math

    which of the functions,P,H,L,R, is a polynomial.The following are a number of terms. determine the coefficient and the degree of each a) (3/2)x to the power of five b) (root square of 2-root square of 5)x to the power nine c)7.3h to the power of to d) -13y

    asked by lilian ahmed
  78. hitory of education

    The most significant reason for the decline of the Latin Grammar School was what

    asked by Hasim
  79. algebra

    Mike would like to plant some trees so he needs to use a portion of his existing yard. The perimeter of this rectangular portion needs to be 14 yards and the diagonal is 5 yards. Can you help Mike determine the length and width of this new portion? Mike

    asked by ella
  80. Algebra 1

    Find the slope and y-intercept of the line 3x=7y+63 Thank you.

    asked by Esther
  81. physics

    find mass of a rocket as a function of time,if it moves with constant acceleration a in absence of external forces.the gas escapes with a constant velocity u relative to the rocket and its mass initialy was m'

    asked by sreeram
  82. Geometry

    Compute the area of the triangle. (Express answer in cm2) h = 6 cm b = 12 cm a = How many cm2?

    asked by Ivan
  83. Physic

    two rocks of unequal mass have the same kinetic energy and are sliding across a flat, level ice surface in the same direction. If the each is subjected to the same retarding force, how will their stopping distances compare?

    asked by Yeldos
  84. Physics

    A hot-air balloon is ascending at the rate of 13 m/s and is 62 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?

    asked by Ethan
  85. Math

    Is this answer correct? Jeremy is in Grade 8. He has a paper route and wants to save for his college education. He determines that he has $100 per month to put into an account at 6%/a compounded monthly. How much will he have at the end of five years for

    asked by Alicia
  86. Writing

    In writing the title for a painting, shoulld I italicize, underline, or both??

    asked by Jessica Fuentes
  87. science

    What was the average speed in km/h of a car that travels 400.0 km in 4.5 h?

    asked by Anonymous
  88. English

    I forgot to include these other sentences. I hope you can have a look at them, too. 1) If death, unlike sleep, is an end in itself, that is all earthly troubles are finished with it, then it is very desirable. As in sleep there is the possibility of

    asked by Franco
  89. Math

    After a recent series of home improvements, four couples were having a dinner party to discuss the additions to their homes. Mike had not recently had a new bathroom. Lorraine had not yet done her kitchen, but perhaps would update it next. Chris, who is

    asked by Molly
  90. English

    1)as per the guidelines.... 2)per the guidelines... Which is correct?

    asked by ann
  91. sociology

    suppose your instuctor has asked you to do a study of homessness

    asked by Anonymous
  92. health

    would saying the patients condition has improved with new medication be an examploe of de-identified information?

    asked by isabell
  93. Physics

    Explosives are used to blow a rock apart. The explosion blows the rock into three fragments. Two fragments go off at a 76 degree angle to each other--a 6.2 kg piece at 26.7 m/s and a 5.5 kg piece at 23.3 m/s. Calculate the speed of the third piece, if it

    asked by Joan
  94. Physics

    Two objects collide and bounce off one another. After the collision, object m1 = 1.67 kg moves off at 14.5 m/s at a heading of 327 degrees. Object m2 = 1.66 kg moves off at 8.9 m/s at a heading of 211 degrees. Initially, m2 was traveling at 11.8 m/s at a

    asked by Joan
  95. help me pick the best poem?

    which poem is the best? can you guys help me pick the best poem to analyze and present to class? What would be your second pick as well? 1. I met a traveller from an antique land Who said: "Two vast and trunkless legs of stone Stand in the desert. Near

    asked by mikki
  96. Physics

    What rise in temperature occurs when 10g of steam at 100 degree celcius are passed into 400g of water at 10 degrees celcius taking the specific heat capacity of water to be 4.2J/gK and specific latent heat of vapourisation of steam to be 2268J/g

    asked by Sarah
  97. computer science

    What are the differences between VPN and private network?

    asked by Sue
  98. ant

    What does Miner's piece tell us about the difficulty of describing another culture

    asked by sharon
  99. ENGLISH

    ive done ten sentences, five are verb and five are adjective, please check. 1. Lily bought a pink cat mask for the halloween party. 2. Anna was covering her scar with makeup as she didn't want anyone to make fun of it. 3. Tory dressed up in disguise to

    asked by Alison
  100. Biology

    Are prokaryotes able to live on inorganic energy sources?

    asked by Zukii
  101. algebra

    55% of the people in a town have brown eyes. you choose a random sample of 200 people to survey regarding their eye color. What is the mean and standard deviation of the proportion of people in your sample that have brown eyes?

    asked by Anonymous
  102. math

    Solve: 3^2x+1 = 70

    asked by Alicia
  103. medical terminology

    I'm taking the medical terminology course and I'm at the part of the course that is working with ICD 9 CM codes. I'm in Chapter 2 of the Medical & Dental Associates, P.C. Insurance Forms Preparation work book and now I'm trying to do the exercises but I

    asked by gabby
  104. Keyboarding and Word Processing

    In a business report what spacing should you use between lines?

    asked by Anonymous
  105. Ecology

    Why is it that carnivores are better able to incorporate energy into themselves than herbivores?

    asked by Michael
  106. English

    Can you please check these sentences as a comment to the famous soliloquy "To be or not to be"? 1)Hamlet wonders whether it is better to leave things as they are bearing the “slings and arrows” of outrageous fortune or to make a stand against his mass

    asked by Franco
  107. Physics

    A car travels up a hill at a constant speed of 33 km/h and returns down the hill at a constant speed of 60 km/h. Calculate the average speed (in km/h) for the round trip.

    asked by Ethan
  108. statistics

    Consider the following data set: 3, 4, 6, 7, 9, 9, 11. Identify a number you could add to the set to keep the mean equal to the median.

    asked by Anonymous
  109. Physics

    An electric vehicle starts from rest and accelerates at a rate of 2.3 m/s2 in a straight line until it reaches a speed of 17 m/s. The vehicle then slows at a constant rate of 1.4 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How

    asked by Ethan
  110. Physics

    An electron moving along the x axis has a position given by x = 14 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?

    asked by Ethan
  111. Chemistry

    True/False 1. Diatomic molecules contain two atoms?T 2. Electrons travel in pairs? T 3. The energies needed to break chemical bonds can be measured T 4. Bonding involves all the electrons in an atom T 5. Lewis structures are used to describe bonding? F 6.

    asked by Chem
  112. Social Studies

    how has the internet changed video voyeurism?

    asked by Jenny
  113. chemistry

    What products are formed when sucrose is heated in an aqueous sulfuric acid solution? What role does the acid play?

    asked by drew
  114. Physics

    If a polonium-210 (Po-210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po-210 nucleus? Hint: W = F*r F=kq1q2/r

    asked by Bobby
  115. MATH!!!!!HELP

    2x+3y = 7 4x-3y = -19 6x=12/6 x = -2 this is elimination method. i have few questions, when do we know wen to add or subtract? multiply? how? i don't know nothing.

    asked by Andraline
  116. SOCIALS !!!ASAP!!!

    some reasons why the metis were frowing dissatrisfied with canadian government

    asked by pkd
  117. world issues

    Identify at least two issues in developing countries that make changing to democracy easier or more difficult. Provide at least one real world example of one of the issues that you identify.

    asked by Sandra
  118. Math

    Suppose you plan to save $12 per week.You have already saved $7.50.In how many weeks will you have saved at least $100?

    asked by Emmanuel
  119. ETH

    Assignment: Learning Styles · Review Ch. 2 of the text. · Complete the Multiple Pathways to Learning assessment and the Personality Spectrum assessment. · Relate results to your personal study habits. · Post a 350- to 700-word response in to the

    asked by keisha
  120. Finance

    calculate the annualized rate of return on a 200 day commercial paper. this loan does not pay periodic interest; it is a discount security. the face value of the paper is 1,000,000 and current market value is 980,000

    asked by darcy
  121. ART

    we have to pick a famous painting to do a art project on. I picked the famous Mona Lisa. My question is that why does the Mona Lisa smile?

    asked by Monalica
  122. Physics

    If a polonium-210 (Po-210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po-210 nucleus? Hint: W = F*r F=kq1q2/r

    asked by Lucy
  123. geometry

    a parallelogram has an altitude of 19 cm and a base of 15 cm. What is its area?

    asked by jasper
  124. English

    Write 5 sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each. 1. Education "is very" (simple present tense) important in your critical role for financial success. 2. I'm "trying"

    asked by Tiffany
  125. math

    0.5x+2=0.2x-7 lost !!!!!!!!!!!!!!!

    asked by Alex
  126. English

    I forgot to include the following sentences. 1) I had a stomachache OR I had stomach ache? 2) I have a terrible sore throat. I think you should take a dose (can you say an effervescent tablet) of anti-inflammatory after main meals (lunch, dinner) and a

    asked by Franco
  127. algebra

    a^2 + a - 240

    asked by Nancy
  128. Nuclear Physics

    If a polonium-210 (Po-210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po-210 nucleus? Hint: W = F*r F=kq1q2/r2

    asked by Jake
  129. Geometry

    The sides of a triangular lot are represented by x, 2x, and 3x + 2. Find each side if the perimeter is 362 feet. What are the 3 lengths?

    asked by Ivan
  130. trigonometry

    ---I asked this question Solve the following right triangles: a. a=117 ft, b=16.35 ft b. B=8 degrees 29',and a=32.8 ft Reiny was kind enough to post this reply. "solving" a triangle involves finding all missing sides and angles, so in a) you found the

    asked by Jad
  131. Math

    How do you explain to 6 year old what a rectangular coordinate system is and why it is important in math. What information is needed to locate a point in this system? And how does this relate to mapping and finding a point on a map.

    asked by Mike
  132. college 209

    multiply (2 sqrt 7 -5 sqrt 3)(8 sqrt7-5 sqrt 3)

    asked by Anonymous
  133. medical terminology

    I'm taking the medical terminology course and I'm at the part of the course that is working with ICD 9 CM codes. I'm in Chapter 2 of the Medical & Dental Associates, P.C. Insurance Forms Preparation work book and now I'm trying to do the exercises but I

    asked by gabby
  134. physics

    three dimensional identical balls 1,2 and 3 are placed on a straight line at a separation of 10m between balls . initially they are at rest. ball 1 is given a velocity of 10m/s towards ball 2. collision between ball 1 and 2 is inelastic with e=0.5 . but

    asked by sreeram
  135. English

    Here are the last sentences of the day. Thank you very much! 1) I bruised my knee from falling off the skateboard. You should spray it with a disinfectant (better: disinfect the wound) and put a bandage on it. I think you should rub some cream on it. 2)

    asked by Franco
  136. chemistry

    what is the length of an equilateral triangle when the area is 45 meters square?

    asked by lindsay
  137. preski

    what is your fav. font ,what color and why?

    asked by jaq
  138. business

    One study found that passengers flying on Boeing-747s preferred them to L-1011s, while passengers flying on L-1011s preferred them to Boeing-747s. This is an example of: A. random sampling error. B. social desirability bias. C. administration error –

    asked by Steve
  139. geometry

    In triangle ABC, • AB is x cm long • BC is twice the length of AB • AC is 10 cm longer than AB. The perimeter of the triangle is 42 cm. Write down an equation in x and solve it. Use your answer to find the lengths of the sides of the triangle.

    asked by Anonymous
  140. MATH

    Determine the exact value of x. a. 3^2x = 5(3^x) +36 b. (1/8)^x-3 = 2x16^2x+1 c. 3^x2 + 20 = (1/27)^3X

    asked by Alicia
  141. college math 209

    solve for y, 5y^-13y=6

    asked by Anonymous
  142. algebra

    find the possible values of a, if the distance between the points is 5, and the coordinates are (1,1) and (4,a)

    asked by teri
  143. college math 209

    use the quadratic formula to solve for x, 3x^2 + x -8=0

    asked by Anonymous
  144. Algbra

    How do you solve this problem? 3/5k - (k + 1/3) = 1/15 (k + 3) Please show me the steps. Thanks.

    asked by Zach
  145. Maths

    3x - 6 = 3x/4 With my working out I got x = 24/15 The answers say that x = 8/3 I've tried it several times and got the same answer. IDK whether im right or wrong, please help!! thanks

    asked by Shivi
  146. Physics

    (a) If the position of a particle is given by x = 16t - 7t3, where t is in seconds and x is in meters, when is the particle's velocity zero? (b) When is its acceleration a zero?

    asked by Ethan
  147. Algebra

    The width of a rectangle is fixed at 17cm. What length will make the perimeter greater than 94cm?

    asked by Terry
  148. Physics

    Can you show work please..? 1. Joe is sledding down a snow hill when he collides with Mike half way down the hill. Joe and the sled have a mass of 65 kg and their velocity before the collision was 12 m/s. If Mike has a mass of 55 kg, what velocity would

    asked by Amy
  149. physical chemistry

    What is a typical speed for a N2 molecule in this room? a) 50 m/s b) 500m/s c) 1500 m/s

    asked by emoni
  150. calculus

    Find the point on the curve y=x^(1/2) that is a minimum distance from the point (4,0). My book says you use the distance formula. Then you let L = D^2 because the minimum value of D^2 will occur at the same value of x as the minimum value of D. What is L,

    asked by kyle
  151. Algebra

    In 1995, life expectancy of males in a certain country was 72.6 years. In 2000, it was 76.1 years. Let E represent life expectancy in year t and let t the number of years since 1995.

    asked by Terry
  152. Algebra

    Solve h=30r+20

    asked by Terry
  153. ENGLISH

    Begin five sentences with the synonym of yellow. 1.Bumblebees collect nectar from flowers to create honey. 2.Daisies were Sally's favourite kinds of flowers as they always seemed to be happy and smiling. 3.Lemon was Andrew's favourtie gum flavour, as he

    asked by Alison
  154. Physics

    Joe is sledding down a snow hill when he collides with Mike half way down the hill. Joe and the sled have a mass of 65 kg and their velocity before the collision was 12 m/s. If Mike has a mass of 55 kg, what velocity would Joe, Mike, and the sled have

    asked by Sara
  155. Physics

    A 3 kg cart is moving along when it strikes a 2 kg cart (initially at rest). The velocity of the two-cart combination after the collision is 4 m/s. Calculate the velocity of the 3 kg cart before the collision.

    asked by Sara
  156. Physics

    Tyler is standing at the 10-yard line waiting to catch the initial kick-off. The .75 kg football experiences a change in velocity of 12 m/s in .17 s when caught by Tyler. What force does Tyler apply on the football?

    asked by Sara
  157. Algebra

    What is the net averge of 5, 31, and 29?

    asked by Terry
  158. Math/Trig

    Find the length of the intercepted arc with radius 2.5 cm and a central angle of 95degrees. Round your answer to the nearest tenth.

    asked by CJ
  159. Math/Trig

    Find the area of the sector, given a central angle of 55degrees and a radius of 5.7 in. Round your answer to the nearest tenth.

    asked by CJ
  160. math

    According to a survey of 100 people, 15 percent of the people chose famous landmarks. How many people chose famous landmarks as their favorite vacation destination?

    asked by jared
  161. chemistry

    A ballon has a circumference of 42 cm what should the volume be in centimeters cubed?

    asked by courtney
  162. german

    im in year 9 and i'm suppose to know lods in german but all i can remeber is guten tag and ich habe.... heeelpppppppppppp!!!!

    asked by lauren
  163. algebra

    simplify as much as possible uã6w^3 + wã96wu^2

    asked by Anonymous
  164. english

    complete the story on the basis of the beginning given below in at least 300 words. Anshuman felt a severe pain in the left part of his chest. He was seating on the terrace right then, and being overweight he struggled to reach his room to make a call to

    asked by Mimi
  165. English

    Thank you very much for your corrections. Here are the sentences I tried to reword. 1) Hamlet considers the reasons which may lead us to take our own life. He thinks of the punishments and insults which people who are good and quiet take from those who are

    asked by Franco
  166. western civilization

    The first Eastern Bloc countries to experience the dismantling of Communist party control were

    asked by destiny
  167. Human Service

    If a man walks into your office,takes off his coat,loosen his tie,sits down, and put his feet up on a chair. what gesture does it mean to you.

    asked by Quentina
  168. hcr/220

    Part One of Two: Ø Resources: Appendix A, Appendix C, and Table 8.3 on pp. 258-259 of Medical Insurance Ø Due Date: Day 7 [Assignments section] January 16, 2011 A 67-year-old Medicare patient presents to the office, exhibiting symptoms of HIV infection.

    asked by brandi
  169. Geometry

    a = 12 ft. b = 8 ft. a = How many sq. ft. ?

    asked by Ivan
  170. Geometry

    A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. If the area of the lot is 8,100 square feet, what is the distance across the lot, i.e., the altitude of the figure? The altitude of the trapezoid is how many feet?

    asked by Ivan
  171. college 209

    multiply (2ã7-5ã3)(8ã7-5ã3)

    asked by Anonymous
  172. Geometry

    A trapezoid has an altitude of 12 cm. Its parallel sides measure 10 and 8 cm, respectively. What is it's area?

    asked by Ivan
  173. biology

    compare asexual reproduction and sexual reproduction

    asked by Anonymous
  174. Human service

    how can you identify gestures in nonverbal communication when the person is not speaking.

    asked by Quentina
  175. pyschology

    dentify and describe the basic components of descriptive and experimental research used in psychology

    asked by julian
  176. MATH

    A is the midpoint of BC. BA=2x+5 and BC=5x-3. solve for x and find the length of BC

    asked by BOB
  177. business

    how has Potash Corp. Saskatchewan have a plant in brazil? or any other efficient advantage?

    asked by Sabrina
  178. algebra

    solve for u, u=sqrt -u+6 u=ã-u+6

    asked by Anonymous
  179. physics

    what is the formula for momentum?

    asked by physics help
  180. physics

    two masses m' each are hanging with help of a light string,which passes over mass less pulley. mass A starts leaking out at a rate of u kg/s with velocity v' with respect to mass A. find kinetic energy of block B as a function of time.

    asked by sreeram
  181. science

    how many grams of product can be made from 1 mol of ethanol

    asked by noone
  182. Art

    I need to know about the symbolism in Olympia, can you explain what this means please.

    asked by gemma
  183. algebra

    simplify 27^2/3

    asked by Anonymous
  184. To "sreeram"

    Please do not copy and paste information without citing its source. Failure to do that is plagiarism, and that is not something we allow on this site.

    asked by Writeacher
  185. physics

    A mass of 10kg is placed on the top of a plane inclined at 45 degrees to the horizontal and allowed to slide down. What is the acceleration of the mass if the frictional force opposing is 3.2N.

    asked by Daniel
  186. Math !!!!ASAP!!!!!

    Where can I find a worksheet for odering scientific notation numbers?

    asked by pkd
  187. physical

    V1=3m3,P1=1.2KPa T=const How much will be change P if A) volume reduced to 1.5 ,2 and 2.5 B) volume increase to 1.5 ,2 and 2.5

    asked by Anonymous
  188. algebra 209

    write the following in simplified radical form 3 sqrt 250

    asked by Anonymous
  189. Algebra

    Solve for the indicated letter. f=6p,for p

    asked by Terry
  190. physics

    two masses m' each are hanging with help of a light string,which passes over mass less pulley. mass A starts leaking out at a rate of u kg/s with velocity v' with respect to mass A. find kinetic energy of block B as a function of time.

    asked by jack
  191. math

    In an ANPR system the time that a vehicle passes a monitoring point is recorded. A suspicious vehicle can be tracked along the motorway by noting the time it passes each ANPR monitoring point. If a car passes monitor A at 22.12.06 and monitor B at 22.54.07

    asked by Dangel
  192. physics

    three dimensional identical balls 1,2 and 3 are placed on a straight line at a separation of 10m between balls . initially they are at rest. ball 1 is given a velocity of 10m/s towards ball 2. collision between ball 1 and 2 is inelastic with e=0.5 . but

    asked by mackson
  193. AP Chemistry

    A chemist mixes 200.0mL of 0.800 M Fe(NO3)3 and 300.0 mL of 0.750 M K2Cr04 and enough of either 0.400 M KOH or 0.400 M Pb(no3)2 to end up with only two spectator ions in solution. a. How much precipitate will be formed b. How many mL of KOH or Pb(No3)2

    asked by qwerty123
  194. Hogan

    Please help identify the topic subject in each paragraph: Interest rates affect our purchasing decision in a two different ways. A lower interest rate is obviously preferred to minimize expenditure being either long or short term. A lower interest rate is

    asked by Darlene
  195. health

    HCR23

    asked by Cassandra
  196. college math 209

    solve for y, 5y^2-13y=6 I did forget the exponent the first time..

    asked by Anonymous
  197. writing

    Write a 100-word passage to Susan Anker, the author of the course’s textbook, in which you describe five details from her book that are good and five details about the book that are written well.

    asked by kelly
  198. chemistry

    what masses of Mg and O2 must be contained to make exactly 2000g of Mgo

    asked by Cloe
  199. Ecology

    Why is more energy Produced from photosynthetic organisms than from chemosynthetic bacteria?

    asked by Michael
  200. college math 209

    solve the equation (x+4)^2=2x^+19x+46

    asked by Anonymous
  201. algebra

    1

    asked by samuel
  202. Social Studies

    how are blogs similar and different from journalism?

    asked by Sara
  203. IT

    Hi, IS it correct that DHCP is a protocol that enables network devices to share a pool of IP addresses. Is it also correct that DHCP operates at the APPLICATION Layer of the OSI model. Thanks

    asked by freddo
  204. Social Studies

    in the past 3 decades, how has the role of profit changed the reporting of the news? when did this shift begin?

    asked by Ricki
  205. physics

    A force of 100 Newtons acts upwards on a mass of 50 kg, another force of 60 newtons acts on the same mass downwards. calculate the accleration in which direction will be the accleration

    asked by Haley
  206. History

    How do you Create a timeline using A.D. and B.C.?

    asked by Betty
  207. Physics

    find the x- and y- component of vector R which has a length of 13cm at 30.0 degrees

    asked by Danny
  208. science project

    need to take an object from point a to point b and back to a and your only allowed to touch the project once to start. any ideas? No batteries, electric or blowing on it allowed. You can use water and magnets.

    asked by matt
  209. science

    the consentration of Sr(OH)2 I S 0.02 WHAT IS THE CONSENTRATION OF OH ASSUMING COMPLETE DISSOCIATION

    asked by mohammed
  210. math

    you borrow 5,000 at APR 4% percent find the interest i after 18 months?

    asked by Anonymous