Vicky

Popular questions and responses by Vicky
  1. math

    how to calculate vertical angle of cone

    asked on January 10, 2016
  2. physics

    a vehicle is accelerating on a straight road. Its velocity at any instant is 30 km/hr, after 2 s, it is 33.6 km/hr and after further 2 s, it is 37.2 km/hr. Find the acceleration of vehicle in m/s^2

    asked on June 10, 2014
  3. science

    HOW MANY ATOMS OF OXYGEN ARE PRESENT IN 8.8G OF CARBON(IV)OXIDE

    asked on October 30, 2016
  4. math

    Telephone company A charges $3.00 for the first minute of any long distance call and $0.50 for each additional minute. Telephone company B charges $2.00 for the first minute of any long distance call and $0.70 for each additional minute. If the cost of a

    asked on May 8, 2014
  5. critical thinking

    9. We shouldn’t take a chance on this new candidate. She’s from Alamo Polytech, and the last person we hired from there was rotten. Trying to figure out the Premise and Conclusion. Premise: She's from Alamo Polytech, the last person we hired from there

    asked on September 2, 2013
  6. Finance

    ) What is your Average Payment Period if your Accounts Payable are $20,000, cost of Goods Sold is $200,000, and Sales are $500,000?

    asked on March 14, 2010
  7. Language Arts

    1.)Which of the following sentences contains parallelism? a.)We sold two bikes at the garage sale, and we also sold four chairs, as well as receiving offers for three lamps. b.)I prefer new things, but some people like to buy things that other people have

    asked on November 24, 2014
  8. Social Studies

    I need help summarizing this article Unbreakable by adam weinstein

    asked on September 13, 2012
  9. Calculus AP

    Evaluate the integral interval from [0 to pi] t sin(3t)dt Use integration by parts u=t and dv=sin(3t)dt. then du=dt and v=-cos(3t)/3 here is my problem but Im having problem to solve with pi. ∫t sin(3t)dt = -tcos(3t)/3 - ∫[-cos(3t)/3]dt =-tcos(3t)/3 +

    asked on July 26, 2012
  10. physics

    A boxcar of mass 250 tons at rest becomes uncoupled on a 4.0° grade. If the track is considered to be frictionless, what speed does the boxcar have after 11 seconds?

    asked on October 29, 2019
  11. Social Studies Help ASAP

    Why did the British want to expand control into the Ohio Valley in the mid-1700s? a. to force the French out of North America b. to put French settlers there under English rule c. to demonstrate Britain’s strength to France and Spain d. to gain access to

    asked on August 31, 2016
  12. Advanced functions

    Find the area of a sector of a circle that has a central angle of 3π/8 and a radius of 7 cm.

    asked on January 31, 2016
  13. chemistry

    explain why a precipitate forms when silver nitrate solution is added to sodium chloride solution?

    asked on October 21, 2012
  14. Government

    What is a simple definition of The Voting Rights Act of 1965?

    asked on September 26, 2012
  15. Functions-Math

    find the value of k such that when 2x^3+9x^2+kx-15 is divided by x+5, the remainder is 0.

    asked on May 7, 2012
  16. Math Please help

    lim ((x^2-64)/(x+8)) x->-8

    asked on February 1, 2011
  17. math

    In a club 15 members choose from them a president , secretary and a treasurer. How many different states of candidates can be chosen?

    asked on January 26, 2017
  18. chemistry

    The label of a bottle containing a solution So of hydrochloric acid carries the following indications :hydrochloric acid of density 1190g/l percentage by mass 37%. We introduce a volume V=4.2ml of So in a volumetric flask of volume 500ml containing about

    asked on December 27, 2016
  19. chemistry

    The label of a bottle containing a solution So of hydrochloric acid carries the following indications :hydrochloric acid of density 1190g/l percentage by mass 37%. We introduce a volume V=4.2ml of So in a volumetric flask of volume 500ml containing about

    asked on December 25, 2016
  20. physics

    A rope of mass M uniformly distributed along its length L ,can slide without friction on a horizontal table. At instant to=0 the hanging part of the rope has a length b and the rope is held at rest .When it is left the rope begins to slide. At instant t

    asked on September 22, 2016
  21. physics

    A pendulum is formed of a particle of mass 100g suspended from the end of an inextensible string of negligible mass and of length L=100cm. The pendulum is shifted by an angle of 60 degrees from its equilibrium position about a horizontal axis passing

    asked on September 21, 2016
  22. One more Social Studies Help

    Why did the British feel justified imposing the Stamp Act on the colonists? Select two. a. Similar stamp taxes were already used in England and Europe. b. The taxes protected colonists from Native Americans. *** c. Britain had spent money protecting

    asked on August 31, 2016
  23. Statics

    In a first semester unit there are four tests each of equal weight i.e. each worth 25%. Your average on the first three tests has been 62%. You need to get an overall average of 65% to proceed to the second semester. What percentage should you try to get

    asked on June 17, 2016
  24. chemistry

    The analysis of halogenated hydrocarbon gave the following results: A sample of mass m=255mg produces 273.7 mg carbon dioxide and 130.6 mg of water .A second sample of mass 87 is treated by hot molten sodium .The obtained mixture is dissolved in distilled

    asked on February 20, 2016
  25. MATH

    Mimo wishes to leave a waitress a tip. Mimo has five coins in his pocket, a penny, a nickel, a dime, a quarter, and a half-dollar. If he uses exactly three coins for the tip, how many different tips are possible? A. 15 B. 5 C. 20 D. 10 Crystal wants to put

    asked on December 1, 2014
  26. Math help

    How many squares in this figure? (1 point) 4.) 15 5** 20 10** Crystal wants to put a fence around her vegetable garden.Her garden is 5 ft wide and 4 ft long.She plans to put a post at each corner and at every foot.How many fence posts will Crystal need? (1

    asked on December 1, 2014
  27. American History

    Which of the following statements is most accurate regarding America's political climate between 1876 and 1896? A. Southern states tended to vote Republican. (B.) The influence of the president over Congress diminished. C. The party that won the

    asked on May 31, 2014
  28. Governement

    Please explain the Voting Rights Act of 1965

    asked on September 21, 2012
  29. Government

    How has the Voting Rights Act of 1965 expanded voting rights?

    asked on September 18, 2012
  30. Science

    Who is the author of this article Where is the article taking place? When was the article written: This is the article: "Robotics" World of Computer Science. Gale, 2002.

    asked on August 13, 2012
  31. Biology

    GENETICS PRACTICE PROBLEMS Worth 10 points each problem is either right or wrong 1. In humans, assume that brown eyes (B) are dominant over blue eyes (b). A blue eyed man, both of whose parents were brown eyed, marries a brown eyed woman whose father was

    asked on April 16, 2012
  32. Chemistry

    What is the value of the rate constant at 17 degrees celsius? The Ea = 122 kJ/mol I know I have to use ln k = ln A - Ea/RT.. but I don't know how to calculate it without known ln A and how do you find ln A Thank you for your help!

    asked on February 6, 2012
  33. SCIENCE

    WHY IS YOUR ESOPHAGUS WRAPPED IN SMOOTH MUSCLE AND YOUR TRACHEA WRAPPED IN BANDS OF CARTILAGE?

    asked on May 13, 2008
  34. social studies

    what is texas important important service industries I don't know what you mean by "important". Major employers of service type jobs are fast foods, cleaning, police, maintenance and repair organizations (automobile, aircraft, building), and state and

    asked on May 18, 2007
  35. physical chemistry

    I calculated that the denaturation enthalpy and entropy changes for chymotrypsin are: H = 418 kj/mol S= 1.32 kj/mol(K) Assume that, in the denatuartd state, each amino acid had three possible orientations. estimate number of amino acid in chymotrypsin

    asked on February 20, 2007
  36. Chemistry

    What is the balance half-equation for this conjugate redox pair permanegate ion and MnO2

    asked on May 25, 2019
  37. math

    Elle is 6 years younger than Felicia. Marta is twice as old as Felicia. If Marta is w years old, a) find the age difference between Marta and Elle. b) write an expression that shows the three girls' average age. Show how you found the answers.

    asked on November 28, 2018
  38. Math

    A pair of fruit flies reproduces and has 1,000 offspring. All 1,000 offspring have the alleles Gg. What is the most likely combination of alleles that each parent has, and why are other combinations not likely? Explain your answer.

    asked on November 21, 2018
  39. math- precal

    If a ball is hit with an initial velocity of 110 feet per second at an angle of 45 degrees from an initial height of 2 feet, how long will it be in the air?The following parametric equations are used to represent the location of the ball after t seconds.

    asked on March 30, 2018
  40. Math

    Using 27 blue patches and some white patches to make a quilt.The quil has a total area 540 Square inches. Each patch has an area of 5 Square inches .How much how much of the area of the quilt is white

    asked on January 10, 2018
  41. Maths

    A triangle has side 9cm 12cm 18cm the longest side of a similar triangle measure 12cm what are the length of other side

    asked on November 9, 2017
  42. physics

    Determine the ionization energy required to extract the electron totally out of a hydrogen atom, and put it at rest

    asked on March 3, 2017
  43. physics

    The index of refraction of water for a given monochromatic light in water is n=4/3. The wavelength of this light in water is 500nm. a) find the speed of this light in water. b) find the energy of one photon of this light . Does this energy change if this

    asked on February 23, 2017
  44. physics

    The index of refraction of water for a given monochromatic light in water is n=4/3. The wavelength of this light in water is 500nm. a) find the speed of this light in water. b) find the energy of one photon of this light . Does this enerdy change if this

    asked on February 23, 2017
  45. Slope

    Find the equation of the line that goes through (3,-4) with slope m=-1/4

    asked on February 9, 2017
  46. math

    you have 6 marbles each of a different color . In how many ways can they be arranged in a row?

    asked on January 26, 2017
  47. math check my answer ?

    What is the range of f(x)=−3x−1? the set of real numbers less than 0 the set of real numbers greater than 0 the set of real numbers greater than −1 the set of real numbers less than −1

    asked on January 5, 2017
  48. chemistry

    One has a solution Sa of ethanoic acid of concentration Ca=1×10^-2 mol/l and pH=3.4 One mixes a volume Va=60ml of the solution Sa of ethanoic acid with a volume Vb1=20ml of the Sb1 solution of ammonia of concentration Cb1=2×10^-2 mol/l. The pH is 5 One

    asked on December 27, 2016
  49. chemistry

    One has a solution Sa of ethanoic acid of concentration Ca=1×10^-2 mol/l and pH=3.4 One mixes a volume Va=60ml of the solution Sa of ethanoic acid with a volume Vb1=20ml of the Sb1 solution of ammonia of concentration Cb1=2×10^-2 mol/l. The pH is 5 One

    asked on December 25, 2016
  50. physics

    A train travelling at 30km/h stops when it's brakes are applied. The train suffers a deceleration our 2m/s. @. How long does the train take to come to rest? b) what is its final velocity?

    asked on December 15, 2016
  51. physics

    In the circuit we have E=48V, R=6 ohm and L=4H. We close the switch at the instant t=0, the current I in the circuit grows from zero to its maximum value Io, and the permanent phase is established. A) determine the value of Io. B) calculate the values of

    asked on December 6, 2016
  52. physics

    The self induced e.m.f created in a coil has the value of 24mV at the instant when the current is 4A and varies at the rate of 10A/s. What is the value of the self magnetic flux kn the coil at this instant?

    asked on December 6, 2016
  53. chemistry

    For the equilibrium: H2 + I2 2HI The equilibrium konstant Kc is equal to 50.5 at 448ºC. If [H2]o=[I2] o= 1 mol/l. What will the concentration of H2, I2 and HI be at equilibrium

    asked on November 4, 2016
  54. physics

    The characteristics of a horizontal and undamped spring-block system are k=400N/m and M=0.3kg.The position of the block is determined by its abscissa along an x'ox axis. When the spring has its natural length then x=0. a) the spring is stretched by

    asked on October 21, 2016
  55. chemistry

    what is the type of catalyst that corresponds the use of the platinum wire

    asked on October 16, 2016
  56. physics

    A semi circular rail of horizontal diameter AB=2R is placed in a vertical plane. Two particles S1 and S2 of respective masses m1 and m2 (m1

    asked on October 7, 2016
  57. physics

    we launched a solid of mass m on an inclined slide. The natural length of the spring is Lo. Before launching, the spring is compressed to a length L. After launching the center of mass of the solid reaches the point A of altitude Z with velocity v. Neglect

    asked on September 21, 2016
  58. physics

    A pendulum is formed of a particle of mass 100g suspended from the end of an inextensible string of negligible mass and of length L=100cm. The pendulum is shifted by an angle of 60 degrees from its equilibrium position about a horizontal axis passing

    asked on September 21, 2016
  59. physics

    Two particles A and B of respective masses M(B) and M(A) are connected together by means of an inextensible string of negligible mass. The string passes over the groove of a pulley of negligible mass. At instant to=0 the system S(pulley,mass,string) is

    asked on September 20, 2016
  60. physics

    A particle C can move along a slide placed in a vertical plane. Points A and B are at the same horizontal level. Determine with respect to B the point where the velocity of C is zero for the first time in the three following cases: a) C is released from A

    asked on September 20, 2016
  61. math

    How much talk time if call costs 36 cents a minute and i have 30 dollars?

    asked on July 28, 2016
  62. chemistry

    How could you prepare: a ) 2-chloropropane from 2-propanol? b) 2-butanone from 2-butanol? c) ethyl acetate CH3COOC2H5 from ethanol? d) 2-methyl-2-butene from 3-methyl-2-butanol?

    asked on June 27, 2016
  63. math

    Let f be the function defined on {-3, 1} by f (x)= (x+1)/x^2+ax+b and (C) its representative curve in an orthonormal system . Knowing that the two lines of equations x=1 and x=-3 are asymptotes to (C) calculate the values of a and b.

    asked on June 23, 2016
  64. math

    A tank is 5/7 full, when 440 litres are removed it goes to 2/5. How much litres does it contain in full capacity

    asked on June 4, 2016
  65. 11th grade physics

    The magnetic field strength along the axis (x'ox) of a solenoid is measured ( o being the center of the solenoid). The adjacent graph represent the length: (The graph represents the variation of B (mT) as a function of x (cm). The numbers on the y axis are

    asked on May 18, 2016
  66. plz help physics!!!!

    A proton is moving in vacuum along a straight path from A to B .It passes point A at the speed of 2000km/s. a)Calculate in J and in eV the kinetic energy of the proton at A. b)Calculate the value of the positive voltage U that should be applied between A

    asked on May 3, 2016
  67. plz help physics

    A proton is moving in vacuum along a straight path from A to B .It passes point A at the speed of 2000km/s. a)Calculate in J and in eV the kinetic energy of the proton at A. b)Calculate the value of the positive voltage U that should be applied between A

    asked on May 3, 2016
  68. physics

    An air condenser has an area of 100 cm^2 the plates being 4mm apart. It is connected in series with another condenser having plate area of 20cm^2 plates being separated by dielectric 0.1mm thick with E=2.5. If the potential difference across an condenser

    asked on April 12, 2016
  69. physics

    An air condenser has an area of 100 cm^2 the plates being 4mm apart. It is connected in series with another condenser having plate area of 20cm^2 plates being separated by dielectric 0.1mm thick with E=2.5. If the potential difference across an condenser

    asked on April 12, 2016
  70. chemistry

    Consider an isomeric mixture of alkenes of molar mass M=70g/mol. Determine the molecular formula of the alkenes.

    asked on March 18, 2016
  71. 11th grade physics

    Two point charges q and q' are placed respectively at two points A and B. Let O be the midpoint of [AB]. Charge q placed at A creates at O an electric field of strength E=9×10^6 V/m. Determine the resultant electric field at O when: a) q'=q b) q'=-q

    asked on March 15, 2016
  72. 11th grade physics

    Two point charges q and q' are placed respectively at two points A and B. Let O be the midpoint of [AB]. Charge q placed at A creates at O an electric field of strength E=9×10^6 V/m. Determine the resultant electric field at O when: a) q'=q b) q'=-q

    asked on March 15, 2016
  73. 11th grade physics

    Two point charges q and q' are placed respectively at two points A and B. Let O be the midpoint of [AB]. Charge q placed at A creates at O an electric field of strength E=9×10^6 V/m. Determine the resultant electric field at O when: a) q'=q b) q'=-q

    asked on March 15, 2016
  74. 11th grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C outside [AB] such that : a) AC=50cm b) AC=30cm c) AC=20cm d)

    asked on March 15, 2016
  75. 11th grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

    asked on March 14, 2016
  76. 11th Grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

    asked on March 14, 2016
  77. 11th grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

    asked on March 14, 2016
  78. chemistry

    25ml of 0.01M KIO3 solution were put to react with an excess of KI. 32.04ml of the sodium thiosulfate solution were needed to titrate the triiodide ions that were present . What is the molar concentration of thiosulfate in the solution?

    asked on February 7, 2016
  79. physics

    A disk is free to rotate around its fixed axis of revolution (delta). The moment of inertia of disk around delta is J=4×10^-2 kg.m^2 This disk is initially at rest is submitted to the action of a couple whose moment is equal to 0.2 N.m What's the number

    asked on February 4, 2016
  80. chemistry help

    A solution of thiosulfate ions has been prepared by dissolving 4.5g of Na2S2O3.5H2O in 250 ml of solution. Calculate the concentration of the thiosulfate ions S2O3^2- in the solution

    asked on January 17, 2016
  81. math

    how to calculate vertical angle of cone

    asked on January 9, 2016
  82. English

    How do i go about writing an essay whose topic is "Sports- General, types of fans and influence on culture?"It is under classification and division in Successful College Writing.

    asked on January 5, 2016
  83. Homeschool

    A ibc with no lid is made by cutting four squares if side length x from each corner of a 10 cm by 20 cm rectangle sheet of metal. Sketch the graph of the function and state restriction 250 200 150 100 50 -5. 5. 10. 15 -50 -100 -150 -200 -260

    asked on September 30, 2015
  84. math

    what is the global maximum of the parabola y= -x^2 -12x +4

    asked on April 18, 2015
  85. math

    (4n-1)^2=16

    asked on April 7, 2015
  86. French

    Whats the partitive article for Je n'ai pas gateau?

    asked on December 2, 2014
  87. social studies

    Why did the British have problems after the French and Indian War? a.)they had less territory than before the war b.)they no longer had native american allies c.)they were faced with a devastating natural disaster after the war ended d.)they were left with

    asked on October 29, 2014
  88. Social Studies

    If you were a reform-minded person who, above all, loathed the social problems associated with alcohol, you would have been especially sympathetic to the A. Comstock Law. (B.) WCTU. C. Mugwumps. D. evangelical efforts of Dwight L. Moody. I chose B is this

    asked on May 29, 2014
  89. anatomy

    For my anatomy class, I need a to make a human bone such as a femur or any other bones in the human body. Any suggestions on a website?

    asked on March 17, 2014
  90. health care

    I have to do a debate on breaking bad news medically. I have the con side to it. Can you recommend some sites

    asked on March 11, 2014
  91. english

    I have to write a research paper on why ernest hemingway would be a good author for college students to ready. Any suggestions on where to start?

    asked on March 10, 2014
  92. chem

    Consider the following neutralisation reaction: 2 H3PO4(aq) + 3 Ca(OH)2 (aq) → Ca3(PO4)2 + 6 H2O Determine the volume of 0.75 M H3PO4 necessary to neutralise 35 ml of 0.45 M Ca(OH)2

    asked on February 8, 2014
  93. math

    Todds weight dropped from 220 pounds to 190 pounds. Cassidys weight dropped from 150 pounds to 135 pounds. Who had the greater percent weight loss?

    asked on November 13, 2013
  94. math

    the number of students at a university increases from 8000 in 1970 to 20,000 in 2000. what was the percent increase in enrollment from 1970 to 2000?

    asked on November 13, 2013
  95. math

    in a survey of 1,500 people who owned the same make of car, 600 indicated that they would buy the same make of car again. What percent of these people were satisfied with their car?

    asked on November 13, 2013
  96. Math

    at a large state university, 60% of the students who apply are accepted. Of those who are accepted, 40% actually enroll. If 20,000 students apply, how many actually enroll?

    asked on November 13, 2013
  97. math

    calculate , in newtons correct to the nearest unit, the force necessary to maintain a body of mass 2kg in uniform angular speed of 2rev/s in a circle of radius 0.2m

    asked on June 14, 2013
  98. math

    calculate,in terms of weight of 1kg, the force necessary to maintain a body of mass 147kg in uniform speed of 10m/s in a circle of radius 5m

    asked on June 14, 2013
  99. Business mathematics

    randy had saved 5000 in an account that offered r% simple interest per annum on 20 march 2008. If the interest on 6 june 2008 was 40, find the exacttime of the investment

    asked on April 22, 2013
  100. Spanish

    Hi! I did the work but I'd like to know if my answers are right; we were supposed to answer these questions with complete sentences: 1. ¿Alguna vez has comido insectos? Answer: Afortunadamente, no he comido insectos. 2.¿Cuánto tiempo has estudiado

    asked on March 5, 2013

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