Questions Asked on
January 23, 2012

  1. Physics

    Four point charges are located at the corners of a square with sides of length a . Two of the charges are +q, and two are -q. Find the magnitude of the net electric force exerted on a charge +Q, located at the center of the square, for the following

    asked by Cooper
  2. Physics

    A hummingbird has a mass of about 1.7 g. Suppose a hummingbird does 0.15 J of work against gravity, so that it ascends straight up with a net acceleration of 1.2 m/s (squared). How far up does it move?

    asked by Autumn
  3. maths

    a car travels 1 km in which each wheel makes 450 revolutions. Find the radius of its wheel

    asked by avanthika
  4. math

    Let C = 2.32 N + 34180 represent the cost (C) of raising a child to 18 years of age, on an income (N). If the cost is $120,000, what is the income?(

    asked by help
  5. chemistry

    Some liquids have enough attractions between molecules to form dimers. (Dimers are molecules formed from the combination of identical molecules, A + A --> A2.) What effect would this have on the experimental molar mass? This was a molar mass lab. Alcohol

    asked by question
  6. math

    You spend $685 a month on living expenses. If your monthly income is $1500, what percent of your income do you spend on living expenses?

    asked by help
  7. chemistry

    the recommended daily allowance of calcium is 1.2 g. calcium carbonate contains 12.0 % calcium by mass. how many grams of calcium carbonate are needed to provide the rda of calcium

    asked by Anonymous
  8. Chem - Titration

    A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1 = 4.00, pK2 = 8.00) was titrated with 1.00 m NaOH. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 10, 11, 15, 19, 20, and 22 mL

    asked by Meg
  9. Chemistry

    The vapor pressure, P, of a certain liquid was measured at two temperatures, T. Represented in a table: T (in Kelvin) ------- P(in kPa) [325] --------------- [4.00] [775] --------------- [8.59] What is the enthalpy of vaporization for this liquid? (Delta H

    asked by Eric
  10. Chemistry

    Knowing that delta Hvap for water is 40.7 kJ/mol, calculate Pvap of water at 46 C

    asked by Help
  11. physics

    Q8: Two sinusoidal waves with the same amplitude of 9.00 mm and the same wavelength travel together along a string that is stretched along an x axis. Their resultant wave is shown twice in fig., as valley A travels in the negative direction of the x axis

    asked by raju
  12. math

    Una makes $64 a week, plus 15 percent of the cost of meals that she serves. Use the equation, y = 0.15x + 64, to predict what she makes in a week when she serves $355 worth of meals

    asked by help
  13. Physics

    An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Find the magnitude of the electric field. Find the direction of the electric field. If

    asked by Cooper
  14. Titration

    Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added and make a graph of pH versus Va: Va = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.

    asked by Sandy
  15. math

    A couple intends to have four children. Assume that having a boy and girl is equally likely event. a) List sample space b) Find the probability that couple has two boys and two girls; c) Find the probability that couple has at least one boy

    asked by juan777
  16. Geometry

    Find the area of a regular pentagon with a side of 6ft. Give the answer to the nearest tenth. 123.9ft2 49.5ft2 61.9ft2 12.4ft2

    asked by Ash
  17. Chemistry

    What is the empirical formula for a compound which contains 67.1 percent zinc and the rest is oxygen

    asked by Wendy
  18. Acid-base titration

    A weak acid HA (pKa = 5.00) was titrated with 1.00 M KOH. The acid solution had a volume of 100.0 mL and a molarity of 0.100 M. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.

    asked by Patrick
  19. English ~ Clauses

    Hey guys! I was hoping that someone could look over my answers & help me out with the ones I didn't get? Thanks :) Directions: Identify the subordinate clause. Tell whether it is a noun, adj, or adv. clause. Indicate whether it's introduced by a relative

    asked by Ashley
  20. Math

    An animal shelter have 1008 cats, dogs, and rabbits. The ratio of the number of dogs to the number of cats in the animal shelter is 3:7. The ratio of the number of rabbits to the number of dogs is 2:5. How many rabbits are there in the shelter?

    asked by Calista
  21. Chemistry

    A compound decomposed by first order rxn. The concentration of compound decreases from .1180 M to .0950 M in 5.2 min. What fraction of the compound remains after 6.7 minutes?I'm thinking I set up a proportion maybe. Any ideas how to tackle this problem?

    asked by Declan
  22. Chemistry

    Give the formula of each of the following copper minerals: A. cuprite, copper (I) oxide B. chalcocite, copper (I) sulfide C. covellite, copper (II) sulfide

    asked by Tiffany
  23. Chemistry :/

    A 10.231-g sample of window cleaner containing ammonia was diluted with 39.466 mL of 0.1063 M HCl to reach the bromocresol green end point. Find the weight percent of NH3 (FM 17.031) in the cleaner.

    asked by Tanya
  24. algebra

    a building in a city has a rectangular base. the lenght of the base measures 70 ft less than twice the width. the perimeter of this base is 820 ft.

    asked by jojo
  25. grade 8 math

    how many different ways can eight cars finish in a race 1st, 2nd, 3rd ?

    asked by theresa
  26. Physics

    Mike pulls a 4.5 kg sled across level snow with a force of 250 N along a rope that is 35.0° above the horizontal. If the sled moves a distance of 63.8 m, how much work does Mike do?

    asked by Mac
  27. math

    Chicago, Illinois has a longitude of 88 degrees West and a latitude of 42 degrees North. Indianapolis, Indiana is located at 86 degrees West and 40 degrees North. At this longitude/latitude, each degree is about 53 miles. What is the distance between

    asked by Sammi
  28. Math

    prove that sinA/(1+cosA) + (1+cosA)/(sinA) = 2cosecA

    asked by Amir
  29. World History

    1. The Cossacks were a nomadic people who a. led the Russian expansion overseas b. led the Russian expansion eastward towards Siberia c. led the Russian political expansion south and west d. led the Russian expansion to the new world B? 2. the conflict

    asked by mysterychicken
  30. Chemistry

    You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical has a mass of 850 grams. The total mass of the setup is 1050 grams. The chemical is ignited by means of a magnifying glass

    asked by Staci
  31. Physics

    Two charges, -15 and +4.5 µC, are fixed in place and separated by 2.8 m. At what spot along a line through the charges is the net electric field zero? What would be the force on a charge of +1 µC placed at this spot?

    asked by Anne
  32. American Lit

    Let a man know his worth, and keep things under his feet. Let him not peep or steal. Or skulk up and down with the air of a charity-boy, or an interloper, in the world which exists for him. What does this passage mean?

    asked by Bobbii
  33. math

    Bart had an income of $38,250 last year. If the inflation rate is 4.5%, what is his purchasing power?

    asked by help
  34. ChemB

    The activity of carbon 14 in living tissue is 15.3 disintegrations per minute per gram of carbon. The limit for reliable determination of age is based on carbon 14 is .10 disintegration per min per gram of carbon. Calculate the max age of a sample that can

    asked by L.Bianchessi
  35. chemistry

    A certain substance has a heat vaporization of 47.97 kJ/mol. At what Kelvin temperature will the vapor pressure be 7.50 times higher than it was at 297K? Please help me! I don't understand heat vaporization questions

    asked by Angela
  36. geometry

    If BE bisects measure ABD and measure EBD equals 32 find measure ABD

    asked by Anonymous
  37. Geometry

    The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle? 90° 80° 75° 85°

    asked by dana
  38. stats

    A final exam in Math 160 has a mean of 73 with standard deviation 7.73. Assume that a random sample of 24 students is selected and the test score of the sample is computed. Assuming the scores are normally distributed, what percentage of sample means are

    asked by dan
  39. Physics

    At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three different directions. As a result, three forces act on the ball, F1, F2, and F3. The magnitudes of F1 and F2 are F1= 50.0 N and F2 = 90.0 N. F1 acts under an

    asked by Amy
  40. Science

    Which of the following is a way to improve the efficiency of a heat engine? increase Qh reduce Qh reduce Wnet increase Qc A What are the energies associated with atomic motion called? kinetic energy potential energy bond energy internal energy D A 0.10 kg

    asked by Lena
  41. Higher Chem

    A 0.5537-g sample containing oxalic acid required 21.62 mL of 0.09377 M NaOH for titration. If the reaction is H2C2O4 + 2NaOH  Na2C2O4 + 2H2O, calculate the % H2C2O4 in the sample.

    asked by Polly
  42. spanish

    please unscramble licbohe, sequi, lanesbocto, taaconni, taquenioic, anitpaje, nigmisaa, ufblot marocneai

    asked by destini
  43. Science

    Do P waves travel faster through gas, liquids, or solids?? I couldn't find the answer in my book OR the internet. Some smart person, please search your brain and help me out!! Thanks :)

    asked by Abbie
  44. Math

    A line intersects the graph of y=x^2 twice. One point has an x-coordinate of -4, and the other point has an x- coordinate of 2. A. Find the equation of the line. B. Find the measure of the angle that the line makes with the x-axis.

    asked by Anonymous
  45. Math

    it costs $175 to rent a jet ski for 2 hours. it costs $300 to rent a jet ski for 4 hours. write an equation that represents y (in dollars) of renting a jet ski for x hours.

    asked by Danny
  46. physics please help!!

    A charge, Q2 = -9.00x10-6 C, is 12.00 cm to the right of charge Q1 = 10.00x10-6 C. Where can a third charge be placed, along the line connecting Q1 and Q2, such that it experiences no net force? Give distances relative to Q1 and use a plus sign if the

    asked by archi
  47. math

    Quadrilateral KLMN has vertices K(-2,-2), L(1,1), M(0,4), and N(-3,5). It is first translated by (x + 2,y - 1) and then translated by (x - 3,y + 4). When a figure is translated twice, a double prime symbol is used. Find the coordinates of K" L" M" N" after

    asked by Anonymous
  48. operations management

    Trucks are required to pass through a weighting station so. ... a weighting station so that they can be checked for weight violations. Trucks arrive at the station at the rate of 40 an hour between 7:00 p.m. and ... How many trucks would you expect to see

    asked by Anonymous
  49. physics

    An airplane is flying horizontally at 115 m/s, at a 20.5 degree angle north of east. State its velocity in rectangular coordinates. Assume that north and east are in the positive direction.

    asked by chris
  50. chemistry

    do the arithmetic and give the answer to the correct number of significant figures. (1.5 x 10^-4 x 61.3) + 2.01 =

    asked by Anonymous
  51. English

    Identify the sentence that uses apostrophes correctly. a) Suzannes car needs’ a new muffler. b) Suzanne's car needs a new muffler. c) Suzanne’ car needs a new muffler. d) Suzannes’ car needs a new muffler.

    asked by Michelle
  52. chemistry

    CxHyCz compound weighs 132 amu, what is the molecular formula?

    asked by christina
  53. physics

    Two point charges, the first with a charge of +3.19×10^−6 C and the second with a charge of -4.32×10^−6 C , are separated by 28.0 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force

    asked by Cooper
  54. Physics

    A uniform electric field of magnitude 2.70×10^4 N/C makes an angle of 37 degrees with a plane surface of area 1.60×10^−2 m^2 . What is the electric flux through this surface?

    asked by Cooper
  55. Physics

    A stone whirled at the end of a rope 30 cm long, make 10 complete revolutions in 2 seconds. Find (i)the angular velocity in radians per seconds (ii)the linear speed (iii)the distance covered in 5 seconds.

    asked by Kecy
  56. Geometry

    Find the surface area of a conical grain storage tank that has a height of 42 meters and a diameter of 20 meters. Round the answer to the nearest square meter. 3,028m2 3,971m2 1,357m2 1,671m2

    asked by Ash
  57. chemistry

    Calculate the value of DHo for the reaction 2 CH4 (g) -> C2H6 (g) + H2 (g) given the following thermochemical equations: C2H2 (g) + H2 (g) -> C2H4 (g) delta = – 175.1 kJ C2H6 (g) -> C2H4 (g) + H2 (g) Delta = + 136.4 kJ C2H2 (g) + 3 H2 (g) -> 2 CH4 (g)

    asked by timmy
  58. Titration Graph?

    Use a spreadsheet to prepare a family of graphs for the titration of 50.0 mL of 0.020 M H2A with 0.100 M NaOH. Consider the following cases: (a) pK1 = 4.00, pK2 = 8.00; (b) pK1 = 4.00, pK2 = 6.00; (c) pK1 = 4.00, pK2 = 5.00.

    asked by Kevin
  59. Math

    Use the cofunction identities to write an expression that is equivalent to each of the following expression. a) sin(pi/6) sin=cos(pi/2 - pi/6) What do I do next?

    asked by Antia
  60. physics help

    help me with this question 2. A hydrogen electron drops from the n=4 level to the n=1 level. A. What is the energy of an emitted photon? B. Calculate the frequency of the photon. C. Calculate the wavelength of the photon.

    asked by carey
  61. Physics

    The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x=10.0 cm and the electric field points in the positive x direction with a magnitude of 16.0 N/C . Assume this electric field is

    asked by Cooper
  62. Geometry

    Find the surface area of a sphere with a circumference of 40 ft. Round to the nearest tenth.

    asked by Ash
  63. opinion

    what is the best invention to YOU???? what is your favorite invention that you use the most???

    asked by 12-year-old-poet
  64. chemistry

    how many significant figures does the sum of 8.520 the 2.7 contain?

    asked by Anonymous
  65. chemistry

    How many milliliters of 16.0 M HNO3 stock solution wouuld be required to prepare 100.0mL of 3.00 M HNO3? Use the formula M1V1=M2V2

    asked by missy
  66. Probabilty & Statistic

    A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment is administered to the individuals in the sample, the sample mean is found to be M _ 42. a. How large a sample is necessary for

    asked by Sharon
  67. geometry

    if line BE bisects m

    asked by yomamma
  68. physics

    A small mailbag is released from a helicopter that is descending steadily at 3.00 m/s. (a) After 2.00 s, what is the speed of the mailbag? v = m/s (b) How far is it below the helicopter? d = m (c) What are your answers to parts (a) and (b) if the

    asked by seanso
  69. TRIG HELP ASAP

    I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0

    asked by missy
  70. math

    A six sided die is rolled three times. List possible outcomes and find the probability of rolling exactly one 6.

    asked by juan777
  71. math

    A student is awake k hours each day and spend k/5 hours each day doing homework. In terms of k, how many days will it take the student to complete homework assignments that require a total of 20 hours?

    asked by Fabian
  72. Grade 10 Math

    how many integer values are there for K for which 4X squared plus KXY minus 9Y squared is factorable

    asked by Anonymous
  73. Precalc HELP PLEASE

    verify 1-sintheta * costheta * tantheta = cos^2theta

    asked by valeria
  74. statistics

    A researcher wishes to estimate the mean height of women aged between 60 and 65 in the US. She desires a margin of error of 0.2 inches. Past studies suggest that a population standard deviation deviation of 3.2 inches is reasonable. Estimate the minimum

    asked by dan
  75. Literacy

    In global trade, when the difference between money coming into a country from exports and money leaving a country due to imports or money flows from other factors is known as the A. balance of payments. C. balance of trade. B. trade offset. D. trade

    asked by Heather
  76. English

    I don't get transitive verbs. In the sentence "Some reach a height of 120 feet," I was told it was transitive. But why? I'm unsure what the direct object is.

    asked by Jazmine
  77. Chemistry

    A certain microwave oven delivers 633 watts (J/s) of power to a coffee cup containing 53.1 g of water at 25°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to make the water boil?

    asked by Sarah
  78. Physics

    Find the electrical potential energy (EPE) of three point charges placed as follows on the x-axis: +2.0 μC at x = 0, +3.0 μC at x = 20 cm, and +6.0 μC at x = 50 cm. Take the (EPE) to be zero when the charges are far separated.

    asked by rad
  79. physics

    Rachel is asked to calculate the density of a liquid. She correctly measures the mass of the liquid to be 13.9 grams, but she incorrectly measures the volume of the liquid to be 8 mL. The actual volume of the liquid is 7 mL. If Rachel uses the following

    asked by Anonymous
  80. Physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked by Anne
  81. electric force/field

    Three point charges, A = 2.2 µC, B = 7.5 µC, and C = -3.9 µC, are located at the corners of an equilateral triangle . Find the magnitude and direction of the electric field at the position of the 2.2 µC charge. magnitude = . N/C direction =

    asked by physics
  82. Chemistry

    How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the following data:

    asked by David
  83. Economics

    21. The EU is an example of a trading bloc, or _______, that has a common external tariff and no internal tariffs, and that coordinates laws to facilitate trade between member countries. A. strategic alliance B. joint venture C. common market D.

    asked by Heather
  84. 8th grade U.S history

    1. Compare and contrast the cultures of two native tribes. Tell what you did to communicate the United States' sovereignty in the region to two different tribes. 2. Name two tribes that you think would enter into exclusive fur trade with the United States.

    asked by Anonymous
  85. math (stats)

    A biology professor gives a surprise quiz consist of a true/false question followed by a multiple choice question with four possible answers. If both questions are answered with random guesses, find the probability that both responses are correct. Please

    asked by juan777
  86. PHYSICS

    Scientists call a theory that unites many ideas in a simple way "beautiful." Are unity and simplicity among the criteria of beauty outside of science? Support your answer

    asked by Anonymous
  87. Psychology

    Can someone please explain the exotic becomes erotic theory by daryl bem, i have read it but i cant understand what its really saying thank you

    asked by Jess
  88. physics

    A thermometer of mass 0.0550 kg and of specific heat 0.837 kJ/kg•K reads 15.0°C. It is then completely immersed in 0.300 kg of water, and it comes to the same final temperature as the water. If the thermometer reads 44.0 °C, what was the temperature of

    asked by chx
  89. Math

    Solve each equation write answer on simplest form 1/4x = 6 2t = 4/7 Can you show me how to do didn't understand on class. Working on solving fraction equation. Multiply and divide

    asked by Chance
  90. geometry

    In parallelogram ABCD, BC = 8, DC = 12, and measure of angle D is 50 degrees. Find the area of the parallelogram to the nearest tenth.

    asked by josh
  91. statistics

    Heights of young adult U.S. women are approximately normal with mean 64" and standard deviation 2.7". What proportion of all U.S. young adult women are taller than 6 feet?

    asked by Ashley
  92. health

    To protect itself from stress, the nervous system triggers the release of hormones such as adrenaline. A.True B. False I think it is A true

    asked by anonymous
  93. GPA help

    if i had a 1.875 and i get a C to go up to a B what is my GPA? will it be a 2.0? i need help i want to play baseball.

    asked by Darren
  94. math

    Suppose you are looking for a job. You interview with a company that has 10 general employees each make $100 per day, 7 assistants each make $400 per day, 3 managers each make $900 per day, and the owner who makes $1900 per day. The interviewer tells you

    asked by Anonymous
  95. Amount paid - keep getting conficting answers

    When Melissa went to purchase a purse from a street vendor, she negotiated a purchase price that was 5% less than the $170.00 marked price, plus 8% sales tax on the purchase price. If she has $475.00 in her checking account, how much did she pay for the

    asked by Algebra88
  96. Physics

    A golfer, putting on a green requires three strokes to “hole the ball.” During the first putt, the ball roles 5.0m due east. For the second putt, the ball travels 2.1m at an angle of 20 degrees north of east. The third putt is 0.50m due north. What

    asked by Amy
  97. Science

    Dingtu can lift a weight of 60 kg on the earth. How much will he be able to lift when on moon? A. 60 Kg B. 10 Kg C. 360 Kg D. 120 Kg

    asked by Abhinav Chandran
  98. spell

    Which of the following is NOT something to check during a thorough revision? Style and tone Organization Punctuation and spelling Content and clarity

    asked by Anonymous
  99. Physics

    Mike pulls a 4.5 kg sled across level snow with a force of 250 N along a rope that is 35.0° above the horizontal. If the sled moves a distance of 63.8 m, how much work does Mike do? please show steps/equation!

    asked by Zach G
  100. physics

    A car is driven 30km west and then 80 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?

    asked by Anonymous
  101. Geometry

    Triangles ABC and DEF are congruent. The length of the line segment AB is 5 yards, the length of the line segment BC is 7 yards, and the length of the line segment CA is 9 yards.

    asked by dawn
  102. Physics

    A ball is thrown horizontally from the roof of a building 29.7 m high at 39.6 m/s. (a) What is the vertical velocity of the ball when it lands? (use down as the positive y-axis direction)b) What is the ball’s total velocity (speed and direction) when it

    asked by Katie
  103. Geometry

    The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle? 90° 80° 75° 85°

    asked by dana
  104. math

    If your annual income from a part-time job is $4523, and the inflation rate is 6 percent, what is the purchasing power of your income?

    asked by help
  105. chemistry

    A piece of metal with a mass of 5.50 grams changed in temperature from 25.0 to 55.0C when 21.3 joules was absorbed. The specific heat of the metal is a. 0.256 b. 0.129 c. 3.91 d. 7.75 e. 0.710J g-1 oC-1 desperately need help!

    asked by Jenna
  106. math

    3+siny = 3cos^2 y for 0

    asked by Amir
  107. 6th grade math

    Find the value fir each expression. Show your work. (13.28 - 7.8) divided by 4. I have the answer in the back of my book and when I try to work the problem out I keep getting the wrong answer. The answer is supposed to be 1.345 I can get the 1.34 but I get

    asked by Mad(:
  108. MATH

    THE LINE Y=X+4 INTERSECTS THE CURVE 2X^2 + 3XY - Y^2 + 1 = 0

    asked by Amir
  109. chemistry

    Which of the following equations represents a reaction for which the delta H can be called a standard enthalpy of formation, delta Hf? a) FeO(s) + CO2(g) -> FeCO3(s) b) 1/2 N2(g) + 2 O(g) -> NO2(g) c) 2 Na(s) + Cl2(g) -> 2 NaCl(s) d) Ba(s) + N2(g) + 3

    asked by timmy
  110. health

    compare and contrast methods of coping with stress.

    asked by casandra
  111. Economics

    6. The idea that countries should produce and sell goods that they produce most effectively and efficiently, and buy goods that other countries produce most effectively and efficiently, is known as A. absolute advantage theory. C. efficiency balanced

    asked by Heather
  112. Law

    Demand letters are a type of __________ letter. (Points: 5) informative advisory confirmation cover is it D

    asked by Andy
  113. chemistry

    Hgl2(s)=2NaNOg(ag) a combination,decomposition,single replacement or double replacement

    asked by michelle
  114. Psychology

    I was assigned a topic nature vs nurture: are children born gay or evolved into,,,,i would appreciate if anyone knows of any book sources that can help me and any secondary source because i don't know where to start thank you in advance

    asked by Jess
  115. Pre-Algrebra

    -x/6-8=10

    asked by Samantha
  116. chemistry

    For the reaction Al (s) + 3 HCl (aq) à AlCl3 (s) + ₃/₂ H2 (g), it was observed that when 4.00 g of aluminum reacted with excess HCl, exactly 30.0 kJ of heat were released. The DHo for this reaction is a) – 91.3 kJ b) – 120 kJ c) – 202 kJ d) –

    asked by Kumar
  117. World History

    2. the conflict that was fought between supporters of the King and supporters of Parliament was called the a. Thirty Years' War b. War of the Roses c. Parliamentary Revolution d. English Civil War D? 6. One of the ways the Manchus tried to distinguish

    asked by mysterychicken
  118. Math

    Lindsay paid $4.40 for a gallon of ice cream.How much would a quart cost?How much would a pint cost?

    asked by Saul
  119. trig

    tan-5n over 3

    asked by Janette
  120. accounting

    P4-2A Gil Vogel started his own consulting firm, Vogel Consulting, on June 1, 2012. The trial balance at June 30 is as follows. VOGEL CONSULTING Trial Balance June 30, 2012 Debit Credit Cash $ 6,850 Accounts Receivable 7,000 Prepaid Insurance 2,880

    asked by kathy
  121. thermodynamics

    A thermometer of mass 0.0550 kg and of specific heat 0.837 kJ/kg•K reads 15.0°C. It is then completely immersed in 0.300 kg of water, and it comes to the same final temperature as the water. If the thermometer reads 44.0 °C, what was the temperature of

    asked by chx
  122. Geometry

    The point A (3, 4) is reflected over the line x = 2, and then is reflected over the line x = -4. What are the coordinates of A'? (1, 2) (9, 4) (-9, 4) (1, 4)

    asked by dana
  123. college algebra

    find the real solutions, if any. use the quadratic formula 2/3x^2 - x -3=0

    asked by kathy
  124. Math

    Can you please help me with a math problem Suppose the ball was 3.24 feet above ground when it was hit, and that it reached a maximum height of approximately 102.51 feet when it had traveled a ground distance of approximately 214.26 feet. The ball lands

    asked by Armun
  125. Math

    My son is grade 4 his homework have question is : when you multiply any number by 1,what is the product ? Please help !!!!

    asked by Peter
  126. math

    suppose you have 43 coins, all dimes and pennies that totals $2.68. How many of each coins do you have?

    asked by sunny
  127. physics

    A meteor streaking through the night sky is located with radar. At point A its coordinates are (5.20km,1.20km), and 1.16s later its has moved to point B with coordinates (6.08km, 0.900km ). a) find the x comonent of it average velocity between A and B.

    asked by Amy
  128. math

    suppose you had $1.76 in dimes and pennies. What is the fewest number of coins you could have? What coins are they?

    asked by sunny
  129. English

    Sentence number 5 was incomplete. I think I should leave out "in part two". I urgently need you to have a look at these other sentences, too 1) I hope you can help me find a Scottish school which is interested in a partnership with our school. 2) In the

    asked by Henry2
  130. math

    What is a distribution? Please help, thank you.

    asked by saranghae12
  131. earth

    Two rockets are orbiting the earth, traveling in perfect circles with equal radii. The velocity of rocket A is twice that of rocket B. What can be said about their respective centripetal accelerations?

    asked by Anonymous
  132. math

    5g = 5/6 i got: 1 1/6 3k = 1.9 i got: k = 1/3 are these right?

    asked by marko
  133. matj

    prove that (cotx+tanx)(cotx-tanx) = 1/(sin^2 x) - 1/(cos^x)

    asked by Amir
  134. College algebra

    Annual profit in thousands of dollars is given by the function, P(x) = 200√ x - 3  + 10,000, where x is the number of items sold in thousands, x ≥ 3.  describe the meaning of the number 3 in the formula describe the meaning of the number 10,000

    asked by Michael
  135. Math

    The center of a circle is A(-3,3) an B(1,6) is in the circle. Find the area of the circle in terms of pi. a^2 + b^2 = c^2 radius is 5 and 25pi

    asked by J.R.
  136. chemistry

    For the reaction Al (s) + 3 HCl (aq) -> AlCl3 (s) + ₃/₂ H2 (g), it was observed that when 4.00 g of aluminum reacted with excess HCl, exactly 30.0 kJ of heat were released. The delta H for this reaction is a) – 91.3 kJ b) – 120 kJ c) – 202 kJ d)

    asked by Walter
  137. math

    Use the function V(T) = 18T2. A basketball player has a vertical leap of 38.5 inches. What is their hang time to the nearest hundredth of a second? Hint: T is your time in seconds.

    asked by chelsea
  138. chemistry

    For the reaction Al (s) + 3 HCl (aq) -> AlCl3 (s) + ₃/₂ H2 (g), it was observed that when 4.00 g of aluminum reacted with excess HCl, exactly 30.0 kJ of heat were released. The delta H for this reaction is a) – 91.3 kJ b) – 120 kJ c) – 202 kJ d)

    asked by Walter
  139. MATH

    I have no idea on how to get started. If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a 16 pound bowling ball is dropped from the tallest building in the world, how

    asked by Challenge Problem Math Help Please
  140. Calculus II

    Find the volume of the solid generated by revolving the triangular region with vertices (1,1), (b,1), and (1,h) about: a) the x-axis b) the y-axis

    asked by Morgan
  141. physics science

    3. An unknown element produces a spectral line of 425nm. A. Calculate the energy of the emitted photon in joules. B. What is the energy of the emitted photon in electron-volts?

    asked by suszan
  142. math college algebra

    write the quadratic function f(x)-x^2+14x-50 in the form f(x)=a(x-h)^2+k by completing the square and graph

    asked by Nicole
  143. chemistry

    why are the atoms in metallic bonds positively charged?

    asked by kelly
  144. Business

    Learning economics is like having you own crystal ball. The more you understand it as a social science, the more you understand how our economy and political system works. I say like a crystal ball, because you will be able to see things that other people

    asked by Crissy
  145. Economics

    11. Often, the _______ the risk, the _______ the rewards. A. higher; higher C. higher; lower B. lower; higher D. faster; quicker 12. When the government of Indonesia imposes a tax on imported electronics products to help its young electronics industry

    asked by Heather
  146. physics

    Calculate the total force of the atmosphere acting on the top of a table that measures 1.9 m by 2.3 m.

    asked by B
  147. geometry

    If line segment A is parallel to line segment B and m

    asked by kate
  148. Mileage/graph

    I tried this and needed to graph. But, I want to find out what I did incorrect. Suppose that a car rental agency gave you the following choices. Option A: $30 per day plus 40 cents per mile. Option B: flat $50 per day (a) Write equations for cost per day c

    asked by Algebra88
  149. Science/English

    I still need the help of a science teacher. I urgently need to know where to look for English vocabulary used to describe the equipment of both a chemistry and a computer laboratory.

    asked by Henry2
  150. math

    The distance, d, an object falls after t seconds is given by the equation d=-1/2(9.8)t^2 If t^2=83sec^2 then what is a good estimate for t?

    asked by Taylor
  151. math (statistics)

    Suppose you are looking for a job. You interview with a company that has 10 general employees each make $100 per day, 7 assistants each make $400 per day, 3 managers each make $900 per day, and the owner who makes $1900 per day. The interviewer tells you

    asked by juan777
  152. Pre-Algrebra

    4/7x-3=13

    asked by Samantha
  153. algebra

    how do you Write a point-slope equation for the line with the given slope that contains the given point. with m=-3;(-2,-5)

    asked by joanna
  154. History

    Who was the only President to kill another man in a duel?

    asked by Mikka
  155. who invented.....

    who invented the bra???

    asked by 12-year-old-poet
  156. trig

    How do you decide if csc=74 is greater than or less than cos=74 without using a calculator?

    asked by Lisa
  157. Science

    Suppose you find a fossil imprint of an animal that existed many years ago.How can I make a model to compare that imprint to the foot of an animal living today?

    asked by Sierra
  158. Geometry

    The point A (3, 4) is reflected over the line x = 2, and then is reflected over the line x = -4. What are the coordinates of A'? (1, 2) (9, 4) (-9, 4) (1, 4)

    asked by dana
  159. chemistry

    The physician has prescribed a medication of 3.5 mg/kg of body weight. If you give 297 mg of medication what is body weight of patient in kg? Is there a converstion formula?

    asked by Sara
  160. physics

    1. You allow a gas to expand freely from volume V to volume 2V. Later you allow the gas to expand freely from volume 2V to volume 3V. Is the net entropy change for these two expansions greater than, less than, or equal to the entropy change that would

    asked by chx
  161. Chemistry

    A compound is characterized by the following constants: Heat of fusion = 75 cal/g Heat of vaporization = 20 cal/g The heat of deposition for the same compound is

    asked by Anonymous
  162. business

    which of the following is an example of business communication 2.0 in action

    asked by Anonymous
  163. caculus

    ʃ dx/x^4(1/x^2-2)^2 please help i need solution..i got the answer.. answer= 1/6(1-2x^3)=c thanks

    asked by ME
  164. English

    As promised, I included 5 sentences. I hope the others were possible! 1) Winston lives a squalid existence in a one-room apartment in "Victory Mansions", eats black bread, synthetic meals, and drinks industrial-grade "Victory Gin." 2) He is discontent with

    asked by Henry2
  165. chemistry

    An insulated beaker contains 250.0 grams of water at 25oC. Exactly 41.6 g of a metal at 100.0oC was dropped in the beaker. The final temperature of the water was 26.4oC. Assuming that no heat is lost in any other way, calculate the specific heat of the

    asked by utna
  166. Precalc please

    Verify: 1/(1-sintheta) * 1/(1+sintheta) = sec^2theta

    asked by Dhehta
  167. English

    Write a sentence about what the future holds using 1 subject pronoun 2 adjectives 1 proper noun

    asked by Paige
  168. PRECALCULUS

    solve: tantheta = sintheta

    asked by Davis
  169. physics

    A sniper is in training. He discovers the target is at 1000 meters right north to where he ambushes. According to his measurement, it's a moving at a uniform speed of 20 meter/second towards east. What is the position of the target after 2 seconds?

    asked by Marley
  170. Tough Math

    Suppose the ball was 3.24 feet above ground when it was hit, and that it reached a maximum height of approximately 102.51 feet when it had traveled a ground distance of approximately 214.26 feet. The ball lands after traveling a ground distance of

    asked by HUNU
  171. Business Math

    Using the FIFO method of inventory pricing, what is the dollar value of ending inventory if there were 300 units on hand on December 31? Annual inventory of windshield wipers January 1 Beginning inventory 300 units@11.00 March 15 Purchase 150 units@10.50

    asked by Terry
  172. Math

    The straight line x+2y+4=0 passes through (4,k), then value of k=?

    asked by J.R.
  173. PHYSICS

    Please help and let me know if I did something wrong. If a cart is released from rest at a 10 meter incline and takes 28 seconds to travel down this incline. 1. Calculate the average speed of the cart? I wrote s=ad/at=10m/28 sec = 357 m/s 2. calculate the

    asked by GRISSELL
  174. Literacy

    The trend toward two-family income has led to A. policies allowing only one family member to work for a company. B. flexible work schedules, pregnancy benefits, and elder-care programs. C. businesses paying lower wages and hiring fewer workers. D. fewer

    asked by Heather
  175. Literacy

    The idea that countries should produce and sell goods that they produce most effectively and efficiently, and buy goods that other countries produce most effectively and efficiently, is known as A. absolute advantage theory. C. efficiency balanced trade.

    asked by Heather
  176. physics

    How much power is required to do 110 J of work on an object in a time of 0.4 s? W How much power is required if the same work is done in 5 s? W

    asked by james
  177. World History

    Need help with these: 28. Led a group of women who wrote a declaration of rights for women that was rejected by the National Assembly - Can't figure out who this was.. 34. Ruler whose military conquests extended Persia's boundaries? 39. Opened Russia to

    asked by mysterychicken
  178. math

    Express 3.042 as a fraction in simplest form

    asked by chelsea
  179. math

    if you know the number of faces on a pyramid you know the number of vertices true or false

    asked by niki
  180. college internship application

    The internship that I am applying for requires a recent writing sample to be sent along with my application but the sample I want to use doesen't exactly scream professional. I recently did a persuasive essay that I am really proud of on the existance of

    asked by Harley
  181. Math

    From 1965 to 1996, CAnadian Gary Duschi made the world's longest gum wrapper chain. It was 18721 feet long. About how many miles long was the gum wrapper chain?

    asked by Jaycee
  182. math

    Solve 2³ -1 • (3 + 6) + 3

    asked by Sally
  183. Science

    How does the formation of metallic bonds explain the fact that metals tend to conduct electricity?

    asked by Joshua
  184. Chem

    why don't nobel gases bond with other atoms?

    asked by Eduardo
  185. Math

    g(x) = 3x+5 / x-1 find the inverse function

    asked by Amir
  186. math

    Your math class has 27 students. There are 12 seniors and the rest are juniors. What is the senior-to-ratio?

    asked by .Jacqueline
  187. physical science

    What is the pH of a 0.01 M solution of the strong acid HNO3 in water?

    asked by breiann
  188. physical science

    a soccer player kicks a ball straight up into the air at 6 m/s.ignore air resistance.what is the velocity of the ball at its highest point?

    asked by faith
  189. Algebra

    Mona uses 1 1/2 cups less whole wheat flour than white flour. She uses a total of 4 1/2 cups of flour. How much of each type flour does she use?

    asked by Anonymous
  190. MATH

    If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the time in seconds. If a 16 pound bowling ball is dropped from the tallest building in the world, how many meters does it fall during the

    asked by HELP ME IN MATH
  191. physics

    A uniform electric field ofmagnitude 384 V/m is directed in the positive x-direction. Suppose a 16 ìC charge moves from the origin to point A at the coordinates, (20 cm, 60 cm). What is the absolute value of the change in potential from the origin to

    asked by robert
  192. Biology

    I just want to know if my answers are right for this folowing: 1. The nose is MEDIAL to the ears. 2. The elbow is DISTAL to the shoulder and PROXIMAL to the wrist. 3. The heart is ANTERIOR to the spine. 4. The stomach is DEEP to the ribs. 5. The pinky

    asked by Jerome
  193. Math

    Lines A and B are perpendicular and have the same x-intercept. The equation of line A is x+2y-4=0. Determine the y-intercept of line B.

    asked by Alana
  194. English

    Is Famine considered as Extra curricular activity?

    asked by Matthew
  195. computer

    You will need to design an application that will prompt a user for his or her hourly pay rate, hours worked, and whether he or she is single, married, divorced, or widowed. It will then calculate the user's gross and net pay. If the user works more than 40

    asked by f pass
  196. English

    What is another way of saying 'i don't mind'?

    asked by Lil
  197. Chemistry

    A student mixed 15.0 mL of a solution of 0.0200 M ferric chloride FeCl3, with 25.0 mL of water. Calculate the moles of iron ion, Fe +3 in the resulting solution. (I think this is a Dilution problem, but I wasn't really sure how to start it out. Any help

    asked by S
  198. science

    What materials can I use to make an imprint like a fossil?

    asked by Sierra
  199. Science

    What kind of material do I use to make a modern day fossil?

    asked by ariel
  200. math

    Find the missing measurement 1 kg - blank ==400g

    asked by stephanie
  201. Math

    How many feet are in 10 inches? I know 1foot=12inches but I don't know how to find out how many feet are in 10inches

    asked by Jaycee
  202. thermodynamics

    You allow a gas to expand freely from volume V to volume 2V. Later you allow the gas to expand freely from volume 2V to volume 3V. Is the net entropy change for these two expansions greater than, less than, or equal to the entropy change that would occur

    asked by chx
  203. biotech college

    What is 29 miles per hour in units of m/s? 1 mile is 5280 feet, 1 meter is 3.3 feet, 1 hour is 60 minutes, and 1 minute is 60 seconds.

    asked by barrie
  204. Math

    when you multiply any number by 1,what is the product ?

    asked by Peter
  205. Chemistry

    Hi I need help with a problem The accuracy of what measurement must be increased in order to increase the accuracy for the specific heat? Thank You!

    asked by Fred
  206. math

    write each measurement first in centimeters only and then in meters only 6m 80cm how do i go about this please?

    asked by sunny
  207. advanced math

    Can you please tell me if 14=-(p-8) is 6= -p .....

    asked by Kate
  208. Math

    How many miles in 1760feet? Is it 1/3?

    asked by Jaycee
  209. equivalent fractions

    what kind of question is this: what is equivalent to

    asked by hush
  210. Math

    Kelly is 66 inches tall. How tall is she in feet and inches? For feet I got 5.6

    asked by Jaycee
  211. math

    tiffany spent 1 7/12 hours doing homework. which of the following is the best estimate of how may hours she spent on her homework.

    asked by michee
  212. Math

    solve 4 sin x = cos x for 0

    asked by Amir
  213. English. Punctuation and Mechanics

    Identify the sentence with the correct punctuation. a) Do you have everything - such as extra clothes; for your trip? b) Do you have everything: such as extra clothes, for your trip? c) Do you have everything - such as extra clothes, for your trip? d) Do

    asked by Michelle
  214. calculus

    calculate y = log_10(x) where x = 0.3

    asked by Sara
  215. math

    can you check: 3/5 a = 3 i got : a = 5 is that right?

    asked by marko
  216. geography

    how does an elevation map help me learn about geography?

    asked by witshell
  217. grammar

    Complete with a suitable discourse markers My marks have been improving steadily.______I have had several successes on the sports field.

    asked by Abdela said yimer
  218. Calculus

    Using Descartes' Rule of Signs, solve: f(x)=x^3+x^2-x+1.

    asked by Anonymous
  219. English

    I need a sentence about what my future holds using 1 infinipive 2 independent clause and a prepositional phrase please help

    asked by Paige
  220. precalc please

    use a formula sheet (i never got it) to help answer this: sin(75degrees)

    asked by Dhehta
  221. math

    How about for this question? 76in=__ft__in 6ft 4 in?

    asked by Jaycee
  222. English

    write aa sentence about what the future holds using 1 possessive pronoun 2 adverbs and 1 compound predicate

    asked by Paige
  223. precalc help

    cos(15degrees) this is not plugging it in the calculator, please help me right down steps. i really need help.

    asked by ash
  224. Chemistry

    How do electrons interact in non polar covalent bonds, polar covalent bonds, and ionic bonds?

    asked by Anonymous
  225. alg2/trig

    what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.

    asked by lisa
  226. Chemistry

    How would i summarize the physical properties of ionic compounds, non polar covalent compounds, polar covalent compounds and covalent solids? (this is one part of the lesson i never understood)

    asked by Anonymous
  227. Word 2007-pages

    Hello Does anyone know how to number the first 4 pages in a word document (2007) with roman numbers and then start from the fifth page with the number 1?

    asked by Mark
  228. mAth

    sketch y= sec theta

    asked by Anonymous
  229. English

    write a sentence about what the future holds using 1 abstract noun 1 subordinate clause. and then another sentence same topic using 1concrete noun 1 adjectives 1 prepositional phrase 1 personal pronoun and 1 interjection.

    asked by Paige
  230. MATH

    THE LINE Y=X+4 INTERSECTS THE CURVE 2X^2 + 3XY - Y^2 + 1 = 0

    asked by Amir
  231. english

    What are the nouns and verbs in the sentence The Lord is my strength and my salvation; in him I will trust.

    asked by cathy
  232. Literacy

    To help employees become more effectively productive, companies may form cross- _______ teams that draw on people from different departments to work on a special project. A. gender C. managerial B. trained D. functional my answer is C or D but i believe D

    asked by Heather
  233. english

    ok i will do it my self what is a infinipive an independent clause and a prepositional phrase

    asked by Paige
  234. Literacy

    7. These days, the leading commercial firms are found in the _______ sector. A. manufacturing C. service B. agricultural D. government my answer is C

    asked by Heather
  235. Math

    4.6meters=___millimeters. 4600?

    asked by Jaycee
  236. Brief Calculus

    Calculate the average rate of change of the given function over the given interval. Where appropriate, specify the units of measurement. f(x) = 1/x;[2, 7] I used the f(b)-f(a)/b-a and I got -.071 and it said I was wrong could you please help me find my

    asked by Jazmin (please help)
  237. PHYSICS

    HOW DO YOU FIGURE OUT A VALUE OF ACCELERATION? CAN IT BE THE SAME AT TWO DIFFERENT TIMES?

    asked by GRISSELL
  238. english

    I read what you sent and I appreicate it but i have to write these sentences by tomorrow and i don't understand

    asked by Paige
  239. algebra

    What could you do to the equation 4xy equal 32 to keep the sides equal

    asked by keenan
  240. math

    A building is 862 feet tall. Use the function h(t) = 16t2 to approximate how long it would take an object to fall from the top. Round to the nearest tenth. Hint: h is your height.

    asked by chelsea
  241. math

    What coulld you do to the equation 4xy equal to keep the sides equal

    asked by keenan
  242. Chemistry

    What are three biological molecules that have carbon backbone??? (molecules that are found in the human body)

    asked by Anonymous
  243. Business

    Pick two similar small businesses in the same industry with which you are familiar, one successful and one not so successful. Describe them in a post, and compare and contrast these businesses. What is the difference in management style between the two

    asked by Demetria
  244. Pre-Calculus

    Verify: 1/(1-sintheta) * 1/(1+sintheta) = sec^2theta sec^2theta is the answer, it would be great if someone can do the steps for me. thank you.

    asked by natalie
  245. bio

    what is Ssarcina Lutea's margin shape on agar?

    asked by rebekah
  246. Math

    How many km in 5928m? 1km=1000m 5km=5000m How do I get to 5928? Do I divide 1000 and 5928?

    asked by Jaycee
  247. English

    I am doing an application it says: Have you held any leadership type positions? Yes/No Please describe (100 words or less) I did not have any leadership type positions, so no. My question is, do I have to explain why I did not have any leadership or is it

    asked by Jake
  248. Reading

    Ocean:sea::river:?

    asked by Appril
  249. English

    I urgently need you to check these sentences. Thank you. 1) I'm pleased to get to know that the French delegation will be arriving on 26. January. On that day I have got afternoon lessons till 3.15 pm. 2) The school administration office will be opened

    asked by Henry2
  250. poetry

    iNeed Help Writing A *Parts Of Speech* Poem?_? HELP!! (;

    asked by Kaidence
  251. English/Science

    I urgently need to talk to one of your science teachers. In particular, I need help to define the objectives for our two-year Comenius project concerning biodiversity in water. This comparative study will be carried out in English. 1) As you know, it will

    asked by Henry2
  252. Science

    I urgently need to talk to one of your science teachers. In particular, I need help to define the objectives for our two-year Comenius project concerning biodiversity in water. This comparative study will be carried out in English. 1) As you know, it will

    asked by Henry2
  253. physics

    I need help with this problem so please help me. 1. A certain photoelectric surface has a threshold frequency of 6.2*10^14 Hz. A. How much kinetic energy is required to produce an electron emission? B. if the surface is illuminated with light that has a

    asked by Jessie
  254. Chemistry

    What type of bond is formed when two or more non metals bond with each other? and What type of bond is formed when a metal and non metal bond with each other?

    asked by Jesse
  255. job fields or business

    what is a similarity to video game designing if your looking for a job similar to it?

    asked by anonymous
  256. physics

    1. Calculate the radius of orbit for a hydrogen electron in the n=3 level. 2.The half life of an unknown substance is one minutes. If the initial number of particles is 20 how many particles will remain after two minutes have elapsed?

    asked by kelly
  257. Math

    10in=___ft 5/6? 20in=____yd 5/9? 880yd=___mi 1/2? 1,760ft=____mi 1/3??

    asked by Jaycee
  258. math

    The estimeatd difference of two numbers is 300. What might the numbers be? Explain how you found the numbers.

    asked by Jenmark
  259. math

    The estimeatd difference of two numbers is 300. What might the numbers be? Explain how you found the numbers.

    asked by Jenmark
  260. chemistry

    How electrons interact in non-polar covalent bonds, polar covalent bonds, and ionic bonds?

    asked by Kelso
  261. math

    write each measurement,first in centimeters only and then in meters only 6m 80 cm 5m 29cm 6m 17cm 8m 67 cm HOW DO I DO THESE PROBLEMS PLEASE HELP.

    asked by johann
  262. Math literacy

    Convert r500 to australian as exchanging rate

    asked by Ncinah
  263. Chemistry

    A solution contains 1.53x10-3 M Ca(NO3)2, How many nitrate ions are there in 1.2x10-6 L (1.2 µL) of this solution?

    asked by Cahleb
  264. Economic

    For most of us, life is about "Tradeoffs".  Why?

    asked by Jill
  265. math

    List and explain matrix

    asked by Jive
  266. Chemistry

    How does the formation of metallic bonds explain the fact that metals tend to conduct electricity?

    asked by Joshua
  267. geometry

    The legs of a right triangle measure 3x 8. A cube has edge lengths and 15. If the hypotenuse measures of 6 inches. What is the 3x+3, what is the value of x?

    asked by stacy
  268. Mathliteracy

    Simplify 50kg-(12x0,450kg)to simplest form pls view all th steps

    asked by Ncinah
  269. business

    Pick two similar small businesses in the same industry with which you are familiar, one successful and one not so successful. Describe them in a post, and compare and contrast these businesses. What is the difference in management style between the two

    asked by Demetria
  270. math

    A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.2 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =

    asked by kiki
  271. chemistry

    how does electrons work together in non-polar covalent bonds?

    asked by Kelso
  272. math

    pizza is sold every tuesday. Today is Tuesday. What reasoning can you use to describe what will happen, Inductive or Deductive reasoning?

    asked by andrew
  273. physics

    Identify correct unit of a measurement. Distinguish Between mass and volume

    asked by keria
  274. English

    if i had a 1.875 and i get a C to go up to a B what is my GPA?

    asked by Darren
  275. physics

    What is the pressure in Pascals exerted on a surface measuring 0.5 m^2 by a force of 125 N?

    asked by jason
  276. invention

    Who invented the: television automobile phone computer circular saw And when were they invented??

    asked by 12-year-old-poet
  277. physics

    A body is thrown with initial velocity 50ms-1 at the angle 60• With the horizontal. Calculate the horizontal range ,also calculate what another angle achieve the same?

    asked by rabin
  278. algebra

    what is the width and length of a box that is 315 cu. units?

    asked by Anonymous
  279. social studies

    i need to find the origina and meaning of latin american countries: costa rica ecuador jamaica can you help me with this or help with a website for this?

    asked by marko
  280. sugar - vs - hormones

    can too much sugar effect hair growth???

    asked by 12-year-old-poet
  281. Math

    The ratio of the weight of Philipe's gerbil to the weight of Dana's gerbil is 4:7. When both gerbils are placed on a scale, the scale reads 99 ounces. how much does Dana's gerbil weigh?

    asked by Yesenia
  282. Presentation

    After completing the Unit 4 Live Presentation, discuss each of the following topics in a 3 – 4 paragraph essay: Discuss at least two specific aspects of delivering the Unit 4 Live Presentation that were easier than you thought they would be. Explain the

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  283. geograghy

    as believers in communism boslsheviks

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  284. science

    if yuh test mice to see if eatin effects yur learning abitly should they be from different purebred strain

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  285. precalc HELP PLEASE

    for all values of theta where 0degrees

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  286. Bakersfield College

    I need to analyze the influence that legal issues, ethics, and corporate social responsibility have had on management planning at BP. Provide at least one example for each. I have been recking my brain for 2 days now.

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  287. social studies

    What were the conditions onthe holding parts of the ships where the slaves were stacked?

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  288. physics

    A ball is thrown vertically upward with a speed of +10.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is its

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  289. chemistry

    lead melts at 106.0 degrees celcius, what is that temperature in faranheit

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  290. physical science

    a soccer player kicks a ball straight up into the air at 6 m/s.ignore air resistance.what is the velocity of the ball at its highest point?

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  291. calculus

    Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the line x = 6. y = 6 − x y = 0 y = 5 x = 0

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  292. physical science

    a soccer player kicks a ball straight up into the air at 6 m/s.ignore air resistance.what is the velocity of the ball at its highest point?

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  293. English grammar and checking

    Hi, I answered these questions about Ella Enchanted movie and I need help seeing if they are correct, and I really need help double checking my grammar, punctuation and spelling. 1. For the movie, who are the main characters? #1- For the movie, the main

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  294. biology

    What changes occur when a solution goes from ph 5 to ph 8

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  295. Pre-Algrebra

    a/4-3/4=1/4

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  296. Pre-Algrebra

    1/5(x+10)-2

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  297. chemistry

    what is saponication

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  298. World History

    Whats is a legal ststem based on custom and court descicons?

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  299. University of Phoenix

    I need to evaluate the planning function of management as it relates to the organization's goals and strategies. I need to use the steps in the planning process. I do not know where to begin The class in MGT/230

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  300. Chemistry

    What happens to the valence electrons in metallic bonds?

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  301. Calculus II

    Find the volume of the solid generated by revolving R about the x-axis where R is the region enclosed by the larger curve y=(e^2x)/3, the smaller curve y=1 and the line x=ln(3)

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