Questions Asked on
November 16, 2011

  1. geometry

    What happened when two fruit companies merged?

    asked by richard
  2. math

    jose said all of the multiples of 8 are also multiples of 2. jamila said that all of the multiples of 8 are also multiples of 4. who is correct. Explain

    asked by Alex
  3. physics

    A box and its contents have a total mass M = 9 kg. A string passes through a hole in the box, and you pull on the string with a constant force F = 77 N (this is in outer space; there are no other forces acting). (a) Initially the speed of the box was vi =

    asked by Anonymous
  4. Physics

    A 49.0 g marble moving at 2.20 m/s strikes a 22.0 g marble at rest. What is the speed of each marble immediately after the collision?

    asked by Zeke
  5. English; conmas

    Where should commas be placed? Combine flour shortening pecans and cold water to make a tasty pie crust.

    asked by Mandy
  6. physics

    A 34-pound crate is pushed across the floor by a 30-pound horizontal force F1. Aside from the pushing force and gravity F2, there is also a 34-pound force F3 exerted upward on the crate and a 20-pound frictional force F4 What kinds of work do the force F1,

    asked by Mochool
  7. Chemistry

    Complete the table by filling in the formula for the ionic compound formed by each pair of cations and anions, as shown for the first pair. Ion K+ NH+4 Mg2+ Fe3+ Cl- OH- CO3 2- PO3- 4 Complete the fourth row of the table.

    asked by Lauren
  8. math

    What might you have if you don't feel well? letters are e, g, o, v, o, s, n, l

    asked by gavin
  9. chemistry

    Assuming that the total volume does not change after 0.200 g of KCl is added to 1.0 L of a saturated aqueous solution of AgCl, calculate the number of moles of Ag+ ion in the solution after equilibrium has been reestablished. For AgCl, Ksp = 1.8 × 10¯10

    asked by Stacy
  10. Physics

    Because of the pressure inside a popcorn kernel, water does not vaporize at 100°C. Instead, it stays liquid until its temperature is about 175°C, at which point the kernel ruptures and the superheated water turns into steam. How much energy is needed to

    asked by conrado sanchez
  11. chemistry

    calculate the numbers of moles of sodium thiosulfate (Na2S2O3) and hence the moles of S2O3^2- ions present in the volume of 43mL someone plz help

    asked by myu
  12. Physics

    Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 27.3° above the horizontal. One child, with a mass of 40.8 kg, is hanging 1.24 m along the branch from the tree trunk. The

    asked by Kelsey
  13. Science

    Which of the following is visible to a person only because light from another source reflects off it? - lightning - flashlight - cloud - sun

    asked by John
  14. Calculus

    this homework is due in one hour and i have no idea how to answer these questions. 1. A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 20 ft/s^2. What is the distance covered before the car comes to a

    asked by Sam
  15. Calculus

    (a) Find the Riemann sum for f(x) = 7 sin x, 0 ≤ x ≤ 3π/2, with six terms, taking the sample points to be right endpoints. (Round your answers to six decimal places.) I got 3.887250 as an answer, but that's not right. (b) Repeat part (a) with

    asked by John
  16. emergency physics

    A 15 g bullet strikes and embeds in a 2.8 kg block suspended at the end of a 1 m string. After the collision the string rises to a maximum angle of 20 degrees to the vertical. what is the speed of bullet?

    asked by joe
  17. HISTORY

    ISNT THIS RITE? With regard to British influences on India, which of the following statements is true? A. A primary objective of British rule was attaining food self-sufficiency for Indians. B. The common name for the British Indian Empire was the "British

    asked by tacarey
  18. physics

    Because of the pressure inside a popcorn kernel, water does not vaporize at 100°C. Instead, it stays liquid until its temperature is about 175°C, at which point the kernel ruptures and the superheated water turns into steam. How much energy is needed to

    asked by conrado sanchez
  19. algerbra

    A ride in a cab costs $0.40 plus $0.15 per mile. a.Write an equation for traveling x miles in the cab.

    asked by Pearl
  20. algebra

    one half the distance from boston to new york minus 25

    asked by mary
  21. chemistry

    how many kg of chalcopyrite is needed to obtain 500g of pure copper

    asked by P
  22. chem

    In an experiment 4.0 g of ferrous ammonium sulphate, FeSO4.(NH4)2SO4.6H2O, is used. Since the oxalate in in excess, calculate the theoretical yield of the iron complex?

    asked by Anonymous
  23. Geometry

    the prerimeter of abcd is 92cm. ad is 7 more than twice ab. find the length of all four sides.

    asked by Xandria
  24. chemistry

    calculate the numbers of moles of sodium thiosulfate (Na2S2O3) and hence the moles of S2O3^2- ions present in the volume of 43mL can someone plz help me?

    asked by Yul
  25. Physics

    A playground merry-go-round (which can be modeled as a disk) has a 3.4 m diameter, a mass of 240 kg and is rotating at 22.5 rpm. A 35 kg child running at 6.0 m/s, tangent to and in the same direction as the merry-go-round is turning, jumps on the outer

    asked by Anonymous
  26. chemistry

    would the molar mass of a volatile liquid be incorrectly high, incorrectly low or unaffected if a)you did not completely vaporize the liquid when you heated it. b)the foil cap got wet while you were cooling the flask and its contents with running water c)

    asked by Anonymous
  27. chemistry

    a steel cylinder with nitrotgen hydrogen and ammonia gases is at 500C and 5.00 atm if patrtila pressure of nitrogen is 1850 mm Hg and hydrogen is 1150 mm Hg what is the partial pressure of ammonia in mm H

    asked by susan
  28. algerbra 1

    5. When managing a business, it is important to take inventory of where your money is spent. You have a monthly budget of $5,000. Refer to the table below and answer the questions that follow. Round your answers to the nearest tenth of a percent. Category

    asked by Connie
  29. physics

    the relative density of an alloy is 6.5.find the mass of the solid alloy cube of side 20cm.what volume of the alloy has a mass of 13kg

    asked by relative density
  30. calculus

    For time, t, in hours, 0\le t\le1, a bug is crawling at a velocity, v, in meters/hour given by v = \frac{5}{1 + t}. Use \Delta t = 0.2 to estimate the distance that the bug crawls during this hour. Find an overestimate and an underestimate. Then average

    asked by Anonymous
  31. chemistry

    the solubility of Kl is 50g in 100g of H2O at 20 celcius, if 110g of Kl are added to 220g of H2O, is the soultion saturated or unsaturated? and what is the %m/m of the solution?

    asked by mandy
  32. phyiscs!

    Having landed on a newly discovered planet, an astronaut sets up a simple pendulum of length 1.51 m and finds that it makes 291 complete oscillations in 697 s. The amplitude of the oscillations is very small compared to the pendulum’s length. What is the

    asked by amanda
  33. math

    Ed Long promised to pay his son $400 semiannually for 12 years. Assume Ed can invest his money at 6% in an ordinary annunity. How much must Ed invest to pay his son $400 semiannually for 12 years? 24 periods, 3% (Table 13.2)

    asked by jackie
  34. Calculus

    A man is in a boat 4 miles off a straight coast. He wants to reach a point 10 miles down the coast in the least possible time. If he can row 4 miles per hour and run 5 miles per hour, where should he land the boat?

    asked by Lisa
  35. Chem

    A gas generator is constructed to collect the CO2(g) evolved from a reaction. during lab we set up the CO2 generator by placing 10ml of 3 M HCL in a 200mm test tube. then slide the 75mm test tube into the 200mm test tube without splashing any of the acid

    asked by Ben
  36. chemistry

    in an experiment 5.00ml of 0.1440 mol L^1- aqueos KIO3 was reacted with an excess of aqueous iodide and the molecular iodine I2, Formed was titrated against 0.1000mol L^1- aqueous S2O3^2- the equation for the titration reaction is: I2(aq)+ 2

    asked by Yulieth
  37. chemistry

    4.0 gram of ferrous ammonium sulphate, FeSO4*(NH4)2SO4 * 6H2O, is used. Since the oxalate is in excess , Calculate the theoretical yield of the iron complex.

    asked by Anonymous
  38. physics

    0.140- cube of ice (frozen water) is floating in glycerine. The gylcerine is in a tall cylinder that has inside radius 3.30 . The level of the glycerine is well below the top of the cylinder.If the ice completely melts, by what distance does the height of

    asked by Armond
  39. Chemisty

    Iodine monobromide and ammonia react to produce nitrogen triiodide and ammonium bromide. (a) Balance the chemical equation for this reaction. (Use the smallest possible whole numbers. Enter 1 where appropriate. Do not leave any answer box blank.) . IBr(s)

    asked by Megan
  40. English

    All of the questions refer to the story To Build a Fire by Jack London. In the first few sentences, we are in exposition. The following observations are things we may or may not learn in the opening few sentences. Which of these is an accurate description

    asked by Anonymous
  41. chemistry

    using the titration equation below calculate the number of moles of molecular iodine (I2) that must have reacted with the sodium thiosulfate I2(aq)+2S2O3^2-(aq) ---->S4O6^2-(aq)+2I-(aq) Can someone plz help me to figure this out with steps and explanation

    asked by Yul
  42. statistics

    1. Here are the actual tabulated demands for an item for a nine-month period (January through September). Your supervisor wants to test two moving average forecasting methods to see which one was better over this period.

    asked by Toya
  43. Chemistry

    What is the strongest intermolecular force in a sample of butanoic acid, and why? H H H O . . . .. H .C .C. C .C .O.H . . . H H H Is this structure right?

    asked by Sam
  44. social studies

    Where did the ancient Olympic Games Begin?

    asked by simone
  45. English Check

    Write a paragraph explaining why you think it is a suitable topic for a research paper, based on your research questions. What are the risks of using cell phones when driving? How will the police control people from violating this law? will banning

    asked by HM
  46. Geometry

    A man has a garden 10 meters square to fence. How many fence posts are needed if each post is 1 meter from the adjacent posts?

    asked by christy
  47. physics

    consider the loop in the figure. The area=600m, and it spins with angular velocity =40.0 rad/s in a magnetic field of strnght B=.400 T

    asked by Michael
  48. human resources, (compensation and benefits)

    1. What factors determine the relevant market for a survey? 2. you own Flazer's Tool Coating Company, a high-tech firm specializing in the coating of cutting tools to provide longer life before resharpening is needed. you are concerned that the competitio

    asked by daiyana
  49. trig

    -Find sin(x+y), cos(x-y), tan(x+y) and the quadrant of x+y sinx=-3/5, cosy=-7/25, x and y in Q3

    asked by Dana
  50. English

    In Catch-22, The Great Loyalty Oath Crusade is one example of The need to show true patriotism in war. The importance of being able to trust companions. The ability of spies to remain hidden despite careful efforts to unmask them. The desire of officers to

    asked by Anonymous
  51. algebra

    what is the volume of a sphere with radius r is given by the formula v=4/3 r^3 Find the volume of sphere with radius 4 meters. use 3.14 for the value of x and round your answer to the nearest tenth.

    asked by Angela
  52. Physics

    Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes an angle of 65.6 ◦ with the horizontal. If Beth exerts a force of 162.2 N on the rope, what is the magnitude of the

    asked by Anonymous
  53. Chemistry

    In an organic chemistry lab, why is the organic layer usually the upper layer in the separatory funnel while the aqueous layer is usually the bottom layer?

    asked by Rachel
  54. english

    the stems measure a foot in diameter=transitive people use bamboo in many ways=transitive in japan the hollow stems serve as water pipes= transitive

    asked by jordan
  55. physics

    A bat at rest sends out ultrasonic sound waves at 51.1 and receives them returned from an object moving directly away from it at 22.3 .

    asked by Randy
  56. physics

    A uniform rod (AB) of mass 80kg and 1.0m lenght is supported on the 2 knife edges placed 15.0cm from its ends. what will be the reactions at these support when a 20kg mass is suspend 10cm from the mid-point of the rod.(workings and diagram).

    asked by EMMANUEL
  57. basic english

    Conrad and his sister will sing a duet in the concert. Which one of the following sentences is an accurate statement about the sentence? A. The sentence has no object. B. The sentence has a compound subject. C. The verb in the sentence is in the present

    asked by Anonymous
  58. history

    1)Who persecuted the Christians first ? -Jews. 2) Who did the Christians persecute? can you help me answer number 2 Thank you

    asked by mike
  59. Physics

    A freight car with a mass of 29,000 kg rolls down an inclined track through a vertical distance of 2.8 m. At the bottom of the incline, on a level track, the car collides and couples with an identical freight car that was at rest. What percentage of the

    asked by Yuki
  60. Physics please help me!

    Prove the law of sines for triangle ABC i.e sinA/a=sinB/b=sinC/c.0 please help me!!!

    asked by Meron
  61. Science

    Thermite is a mixture of iron(III) oxide and aluminum powders that is used in some countries to weld railroad tracks. It is a spectacular reaction to yield solid aluminum oxide that floats on the molten iron. When cooled, the iron is ground smooth and even

    asked by Megan
  62. Chemistry

    How many grams of aluminum sulfate, Al2( SO4)3 , will be formed from 0.98 g of sulfuric acid and enough aluminum according to the following reaction: H2SO4 + Al -> Al2(SO4)3 + H2

    asked by ANonymous
  63. Chemistry

    The compound butane, has two structures. They have the same molecular formula but different arrangements of bonds in their structures. As a result, they can have different chemical and physical properties. Draw the lewis structures of all the isomers of

    asked by Hannah
  64. social studies

    What did the people of ancient Ghana have that the proto-Bantu-speaking people did not? What effects do you think this had on their descendants?

    asked by josh
  65. socials WW2

    what were the reasons for the growth of technology and industry during WW2? I think it their defeat in previous wars that teach them to update on their supplies. That it i know

    asked by Mohammad
  66. physics

    The specific heat is 0.80kJ/C. If 1.6MJ of heat are added to a 100-kg granite statue of James Prescott Joule that is originally at 18 degrees C. What is the final tempertaure of the statue?

    asked by Agata
  67. Science

    Al(OH)3(s) + HCl(aq) AlCl3(aq) + H2O(l) How many moles of HCl are required to react with 0.470 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given. mol HCl What mass of HCl is

    asked by Megan
  68. Physics

    The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of

    asked by Angie
  69. Chemistry

    2 NO + O2 --> 2 NO2 The reaction rate is increased five­fold when the temperature is  increased from 1400 K to 1500 K. What is the activation energy for the reaction?  I have no idea how to do this and would greatly appreciate some

    asked by Neha
  70. math

    In 1980, the population of a certain country was about 161 000. since then the population has decreased about 1% per year. a. find an equation to model the population since 1980 b. estimate the population in 1990 c. suppose the current trend continues.

    asked by jefferson
  71. physics

    Using Newton's Law of Universal Gravitation, compare the weight of a 68.1 kg astronaut on the surface of the earth to the gravitational pull of the Earth on the same astronaut when she is on the International Space Station. Constants: Average altitude of

    asked by Maria
  72. Biology

    Please help: In glycolysis followed by either lactic acid or alcoholic fermentation produce _____ ATP molecules, while cellular respiration using oxygen produces ____ ATP. 1) 2,8 2) 4,2 3) 2,4 4) 2,38 Thanks a million!

    asked by Amy
  73. Physics

    The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of

    asked by Jasmin
  74. physics

    Starting at rest at the edge of a swimming pool, a 72.0-kg athlete swims along the surface of the water and reaches a speed of 1.15 m/s by doing the work Wnc1 = +170 J. Find the nonconservative work, Wnc2 done by the water on the athlete.

    asked by Ed
  75. Mathematics

    Given that a√b^2-c = 5k, find the value of: 1. k when a = 3, b = 6 and c = 20 2. c when a = 4, b = 7, and k = 11 Explain your working please

    asked by Jessica
  76. physics

    The wind exerts a force of 280 N North on a sailboat, while the water exerts a force of 131 N West on the sailboat. How many degrees west of north is this net external force directed?

    asked by Anonymous
  77. psychology

    Tell me how to put it together!" Kent demanded. "I can't." Alvin complained. "I know how to do it, but I can't just tell you or write it down. It just all comes together one step after another. "Alvin is attempting to explain: a. the importance of timing

    asked by vedrana
  78. algebra

    the function c= p+0.07p relates the price of an item to its cost. If you have $12.50 to spend, what is the cost of the most expensive item that you can buy?

    asked by Jalen
  79. chemistry

    human body is 255 square inches what is the total weight of the atmosphere on a human body expressesd in pounds

    asked by susan
  80. Physics

    The wave function for a certain standing wave on a string is given by y(x,t) = A0 sin(k0x)sin(ù0t) where k0 = 3ð rad/m and ù0 = 6ð rad/s . What is the wavelength of the standing wave?

    asked by Token
  81. physics

    A college student is at a concert and really wants to hear the music, so she sits between two in-phase loudspeakers, which point toward each other and are 60.8 m apart. The speakers emit sound at a frequency of 428.75 Hz. At the midpoint between the

    asked by maria
  82. physics

    Using Newton's Law of Universal Gravitation, compare the weight of a 68.1 kg astronaut on the surface of the earth to the gravitational pull of the Earth on the same astronaut when she is on the International Space Station. Constants: Average altitude of

    asked by Maria
  83. Algebra 2

    The problem is 3x^2 - 26 + 35 (We have to factor it!) So, I did the problem, but I'm not sure how to write the final answer. This is what my problem looks like so far: 3x^2 - 26 + 35 (3x^2-21x)-(5x+35) 3x(x-7)-5(x+7) and this is where I have the problem. I

    asked by Hal
  84. human resources, (compensation and benefits)

    Which competitive pay policy would you recommend to an employ? Why? Does it depend on circumstances faced by the employer? Which ones?

    asked by daiyana
  85. Physics please please help me

    Prove the law for triangle ABC i.e sin A/a=sinB/b=sinC/c Please help me!

    asked by Meron
  86. physics

    a horizontal force of 60.0 N is exerted on a 2.00 kg discuss as it is rotated uniformily in a horizontal circle (at arm's length) at radius of 1.00 m. Calculate the speen of the disuss

    asked by Lindsay
  87. English

    The following lines are from Alexander Pope's "An Essay on Criticism." In it, Pope (1688-1744) gives his opinions on the secret of good writing, opinions that were very consistent with his times. Answer all questions based upon these lines. Those RULES of

    asked by Anonymous
  88. Government US

    What is an advantage in electing judges? a. Judges are more responsive. b. Judges are more independent. c. Judges are more competent. d. Judges are both more independent and more competent. I would say D ?

    asked by HM
  89. Science

    Caleb is holding a metal block in his hand. What could he do to decrease the thermal energy of the block? a) cool it b) drop it c) hit it d) melt it

    asked by Susana
  90. physics

    A uniform rod (AB) of mass 80kg and 1.0m lenght is supported on the 2 knife edges placed 15.0cm from its ends. what will be the reactions at these support when a 20kg mass is suspend 10cm from the mid-point of the rod.(workings and diagram)

    asked by Anonymous
  91. History

    How does barter and commodity money compare to todays paper and coin money? please help

    asked by Lee
  92. MATH

    i need this as quick as possible please Omar is building a straight fence, with posts one meter apart. If the fence is 13 meters long, how many fence posts does he need? If the fence is 13 meters long, how many fence posts does he need?

    asked by Emily
  93. physics

    The drawing shows a boat being pulled by two locomotives through a canal of length 2.50 km. The tension in each cable is 5.00 103 N, and è = 19.0°. What is the net work done on the boat by the two locomotives?

    asked by ash
  94. algerbra 1

    4. Your profit P is determined by subtracting the cost C, the amount of money it costs to operate a business, from the revenue R, the amount of money you earn from selling your product. Profit can be represented algebraically by the equations: Profit =

    asked by Connie
  95. Trigonometry

    How do you solve these equations algebraically? y=x^2+4x 2x-y=1 y=x^2+2x+3 x+y=1

    asked by Zady
  96. chemistry

    HI(aq) + KOH(aq)>> H2O(l) + KI(aq) Express your answer as a chemical equation. Identify all of the phases in your answer.

    asked by Anonymous
  97. mecs101

    discuss a modern middle eastern country's attempt to either codify or replace shariah law.

    asked by lou
  98. chemistry

    why is this statement false? "when an ionic compound dissolves in water an equal number of positive and negative ions is created."

    asked by steph
  99. english

    Last night, Lucy and Neil met Morey in Gramercy Park. The predicate of the sentence is A. in. B. Morey. C. met. D. Lucy and Neil.

    asked by Anonymous
  100. physics

    the driver of a 1200kg car travelling 45km/h west on a slippery road applies the brakes, skidding to a stop in 35m. Determine the coefficient of friction between the road and the car tires

    asked by Anonymous
  101. Social Studies

    I have this assignment for ss that is due on monday. Here it is (the assignment paper) LETTER TO QUEEN ISABELLA In 1492, Queen Isabella of Spain provided an Italian explorer and navigator, Christopher Columbus with 3 small ships the Nine, The Pinta, and

    asked by Laruen
  102. Physics

    The shaft of a pump starts from rest and has an angular acceleration of 3.40 rad/s2 for 11.0 s. (a) At the end of this interval, what is the shaft's angular speed? rad/s (b) What is the angle through which the shaft has turned

    asked by Kelsey
  103. statistics

    Let x be a random variable that represents the length of time it takes a student to complete a take-home exam in Dr. Larson’s psychology class. After interviewing many students, it was found that x has an approximately normal distribution with mean µ =

    asked by Anonymous
  104. VB

    I am new here; say to everyone first. Here is the a question for coding list box; it has two part: first part: Create a project that stores personal information for a little electronic "black book"; the fields in the file should include name, phone number,

    asked by austin
  105. Computer Club Ideas (please read)

    Is there any sites for middle or high schoolors can do for computer clubs like any sites on making fun videos or movies, making amnination, putting drawing into computers to make your own comic books (girls and boys), ways to make a websites or a video

    asked by Laruen
  106. college chemistry

    What is the ratio of KC2H3O2 and HC2H3O2 in a buffer with a pH of 5.25? Ka = 1.8 x10-5?

    asked by Teresa
  107. Physics

    A curve of radius 55 m is banked so that a car of mass 1.5 Mg traveling with uniform speed 57 km/hr can round the curve without relying on friction to keep it from slipping on the surface.

    asked by Samantha
  108. business

    Which competitive pay policy would you recommend to an employ? Why? Does it depend on circumstances faced by the employer? Which ones?

    asked by daiyana
  109. Physics

    In the experiment, a meter is hooked up to a speaker to monitor the amplitude of the received sound. Suppose the background signal level is 15 mV, the signal is 90 mV with no attenuator and is 30 mV with an attenuator in place. Calculate pt/pi including

    asked by Michael
  110. algerbra1

    2. You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high temperature when you are not baking, but you also do not want to waste a lot of time waiting for the oven to reach the desired baking temperature.

    asked by Connie
  111. Art Apperciation

    Compare Raphael’s School of Athens to Veronese’s Christ in the House of Levi. Explain how each artist reflected the political and social environment of Rome and Venice during the Renaissance period

    asked by Linda
  112. Physics help pleasee

    How much power is generated by a 90 kg sprinter that accelerates up to 9.0 m/s in 2.8 seconds?

    asked by Me
  113. math

    Who am I? I am a 4-digit number wih no two digits the same. My ones digit is twice my thousands digit. My hundreds digit is the diference between my tens and my thousands digit. My thousands digit is an odd number less than 6. I got one answer which was

    asked by smiley face
  114. Chemistry

    For a lab experiment we have to draw the lewis structures of hydrides. 1) Carbon It asks for the formula of hydride. Total # of valence electrons and the lewis structure. Total electrons would be four. I am not sure what the formula would be or how to find

    asked by Hannah
  115. Science

    Is it choice B....somebody please answer I really need to know An individual with the genotype Aa mates with an individual with the genotype AA. Which of the following is true? A) These two individuals will have four offspring. B) Half of the offspring

    asked by Jon
  116. Technology in the Classroom

    Which of the following scenarios most likely describes the future of technology in education?

    asked by annie
  117. physics

    The sound level in decibels is typically expressed as β = 10 log (I/I0), but since sound is a pressure wave, the sound level can be expressed in terms of a pressure difference. Intensity depends on the amplitude squared, so the expression is β = 20 log

    asked by melisa
  118. chemistry

    calculate the number of moles of potassium iodate (KIO) that were present in the 5.00mL aliquot of standar potassium iodate solution Can someone please show me the workings to do questions like this one? thanks =]

    asked by me
  119. physics

    Using Newton's Law of Universal Gravitation, compare the effect of the Sun and the Moon on the tides. Constants: Mass of the Moon, M☽= 7.348E22 kg. Moon's semi-major axis, a☽= 3.844E8 m. You can find the other constants you will need on the Astronomy

    asked by Maria
  120. physics

    To show your friends how strong you are, you start pushing a big container with mass 50 kg along a long, flat highway. While you are pushing the container in a horizontal direction with an average force 350 N, it moves with acceleration 1 m/s/s. After 5

    asked by mj
  121. Physics help pleaseeee

    A horizontal spring with a spring constant of 200.0 N/m is compressed 25.0 cm and used to launch a 3.00 kg block across a frictionless surface. After the block travels some distance, the block goes up a 32 degree incline that has a coefficient of friction

    asked by Me
  122. differential equations

    Consider the 2nd order differential equation: x''(t)=-x-A(x^2-1)x'(t) x(0)= 0.5 x'0)= 0 ''= 2nd order,'= 1st order where A is a positive constant.As the value of A increases this equation becomes increasingly stiff. Convert this equation to two first-order

    asked by Rikki
  123. Algebra II

    The number of oscillations made by a pendulum in a given time is inversely proportional to the length of the pendulum. A certain clock with a 20-in.-long pendulum is losing 11.00 min/day. Should the pendulum be lengthened or shortened, and by how much?

    asked by Arielle Guidry
  124. math

    a drawer contains n socks, of which 16 are striped. two socks are pulled from the drawer in the dark. waht is the largest possible value for n if the probability that both socks are striped that 1/2

    asked by Shey
  125. Physics

    If a&b are vectors such that a+3b=-3i+j & a-b=i-2j then find vectors a&b.

    asked by Emily
  126. Algebra

    A person rolls two dice. What are the odds against throwing at most a six?

    asked by Lori
  127. chemistry

    Volume of Na2S2O3(aq) required? final burette reading trial1= 45.00 trial2= 44.27 trial3= 45.28 initial burette reading trial1= 0.52 trial2= 1.22 trial3= 2.33 volume of Na2S2O3 used in each trial? average of the two volumes agreeing within 0.10mL? can

    asked by Yul
  128. physics

    Tarzan, played by Patrick Huard, 60 kg, must cross a stream 5 m wide, and full of hungry crocodiles. To do this, decides to slide along a sloping tree trunk, hollowed and moist so that there is no friction. After the trunk, there is a part of 3 m platform

    asked by sarah
  129. physics

    can someone explain how to do this step by step i already have the answer but i need to know how to do it!! the answer is (a)6.67m/s (b)111km/s^2 The muzzle velocity of 50g shell leaving a 3kg rifle 400m/s(a)What is the recoil velocity of the rifle?(b)If

    asked by KIKI
  130. algebra

    Eight times the opposite of a number is 36 less than the product of 4 and the number. What is the number?

    asked by Jordan
  131. physics

    The sound level in decibels is typically expressed as β = 10 log (I/I0), but since sound is a pressure wave, the sound level can be expressed in terms of a pressure difference. Intensity depends on the amplitude squared, so the expression is β = 20 log

    asked by maria
  132. physics

    A hockey player is skating at 17 m/s comes to a complete stop in 2 m. What is the acceleration of the hockey player ?

    asked by Anonymous
  133. Chemistry

    What is the mass of 14 liters of gasoline? Assume that the density of gasloine is .680 grams per cubic centimeter. Provide answer in kilograms.

    asked by Cat
  134. physics

    the relative density of an alloy is 6.5.find the mass of the solid alloy cube of side 20cm.what volume of the alloy has a mass of 13kg

    asked by relative density
  135. Physics

    A 16,000 kg F-18 (jet fighter) lands at 52 m/s on an aircraft carrier, its tail hook snags the cable to slow it down. The cable is attached to a spring with a spring constant of 60,000 N/m. How far does the spring stretch to stop the jet?

    asked by ....
  136. physics

    An airplane passenger carries a 250 N suitcase up the stairs, a displacement of 4.70 m vertically, and 5.30 m horizontally. How much work does the passenger do?

    asked by ian
  137. algerbra

    Need help with this question I can get it. Bayside insurance offers two health plans, under A Giselle would pay the first $50 of her medical bills plus 35% of the rest. Under planb Giselle would $180 in bills. Giselle would save with plan B if she had more

    asked by marie
  138. science

    if you lived in the southern hemisphere about the same distance from the equator as new jersey what seasons would you have and when

    asked by yulissa
  139. chemistry

    calculate the number of moles of potassium iodate (KIO) that were present in the 5.00mL aliquot of standar potassium iodate solution Can someone please show me the workings to do questions like this one? thanks =]

    asked by Yul
  140. basic english

    In which of the following sentences is the underlined word an object pronoun? A. We returned our books to the library. B. You really should apologize to her. C. I would like you to listen to me. D. I gave her a gift for her birthday

    asked by Anonymous
  141. statistics/psyc

    Researchers are interested in the effectiveness of a particular treatment for insomnia. Fifty insomnia sufferers who responded to a newspaper ad are contacted, and each is given a pill with instructions to take it before going to sleep that night. The pill

    asked by ashley
  142. physics

    Using the weight equation, weight = (mass)(strength of gravity field) or Fg = mg, calculate your mass in kilograms. Constants: Strength of the gravity field near the surface of the earth, g = 9.8 m/s2. 4.448 Newtons equals one pound of force. You can find

    asked by Maria
  143. Algebra II

    The force of attraction between the earth and some object is called the weight of that object. The law of gravitation states, then, that the weight of an object is inversely proportional to the square of its distance from the center of the earth. If a

    asked by Arielle Guidry
  144. Algebra II

    Assuming that y varies directly as the fourth power of x, fill in the missing values in the table of ordered pairs. x 18.3 74.5 ? y 29.6 ? 155

    asked by Arielle Guidry
  145. Language

    The word "slippery" almost feels slippery! This may have to do with the blending of "s" and "I" so that the word glides or slips out of your mouth. Many English words seem to imitate their meaning. Try to record at least six such words.

    asked by Hannah Montana1997
  146. math

    Help with this word problem please! Bayside Insurance offers two health plan A, Giselle would have to pay the first $80.00 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $90.00 but only 20% of the rest. For what

    asked by marie
  147. math

    Solve for the value of x using mental math.1/4x = 1/4

    asked by webster
  148. Engineering

    A 2kg piece of gold metal at 90 C is placed in 5 liters (=5kg) of water at 30 C. Determine the final temperature (Tf).

    asked by Devin
  149. physics

    can someone explain how to do this? The muzzle velocity of 60g bullet leaving 4kg rifle is 500 m/s towards the east. What is recoil velocity of the rifle?

    asked by KIKI
  150. math

    Help with this word problem please! Bayside Insurance offers two health plan A, Giselle would have to pay the first $80.00 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $90.00 but only 20% of the rest. For what

    asked by marie
  151. Algebra 2

    is 4y(squared)-17y+15 factorable? i think its just not factorable, but i'm not sure. thank you::)

    asked by Nicole
  152. algebra

    During the first part of a trip, a canoeist travels 69 miles at a certain speed. The canoeist travels 2 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hrs. What was the speed on each part of the trip?

    asked by Nancy
  153. algebra

    11-(3x-6)+2(4x+5)-7x

    asked by T
  154. Spanish

    Could you please check these-I had to answer the questions. 1.¿Bailaste ayer? Sí,yo bailé ayer. 2.¿Caminaste a la escuela hoy? Sí, yo caminé a la escuela hoy. 3.¿Visitaste a tus primos el domingo pasado? Sí, yo visité a mis primos el domingo

    asked by Tim
  155. CHemistry

    Given that the half life of c 14 is 5,700 ,use the method c 14 dating to determine the age of a fossil if it has 25% of c 14 compared to living specimen.

    asked by Devin BOutte
  156. math

    A classroom is 10 yards long.THE floor is being tiled with new tiles that are each 10 inches long.HOW MANY TILES ARE NEEDED TO MAKE 1 ROW the length of the classroom

    asked by reeree
  157. calculus

    Show that the equation;x+3sinx=2 has a root between x=0.4 and x=0.6 using newton raphson's formular only

    asked by farouk
  158. math

    Help with this word problem please! Bayside Insurance offers two health plan A, Giselle would have to pay the first $80.00 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $90.00 but only 20% of the rest. For what

    asked by marie
  159. math

    5x+negative13x+6x+4x

    asked by felix
  160. math

    (from current question)14x+20y+negative17y+negative17x

    asked by felix
  161. physics

    A college student is at a concert and really wants to hear the music, so she sits between two in-phase loudspeakers, which point toward each other and are 60.8 m apart. The speakers emit sound at a frequency of 428.75 Hz. At the midpoint between the

    asked by maria
  162. Algerbra1

    1.You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within

    asked by Connie
  163. Ap us history

    What was George washintons platform in the election of 1792

    asked by Anonymous
  164. Math- Algebra 2

    write in vertex form (by completing the square)y=4x2+40x+96

    asked by Justine
  165. algerbra 1

    The decimal notation for the fraction -9/16 is Round to the nearest hundreth Solve 5x+8x=78 The solution is x= Simplify the answer. Type an integer of decimal. Solve using the addition principle 9.5=p-9.2 The soluation is p=

    asked by Connie
  166. chemistry

    How many grams of Nitric oxide are required to produce 145g of nitrogen in this reaction: Al2O3(s)+6NO(g)---->5N2(g)+6H2o(l)

    asked by mandy
  167. Physics Disaster

    Had The Same Teacher For Physics And Ughh I Am Stuck. Notes Help Me A Lot So If Anyone Could Write A Few Or A Bunch Out That Would Be Awesome. I Am Not The Type Of A Person Who Minds Writing Down Notes;) Teacher Told Us About Work And That The Formula For

    asked by Fizzylicous
  168. English

    Hello. Please help me with a few language problems. 1)Is it possible to say a)There are good responses about these experts. b)These experts have good responses. c)These experts are well reputed. Meaning: The experts have a good reputation, they are well

    asked by Ilma
  169. Englsih due at 10:30

    please proof read for any errors and correct them Thank The word Divorce can make a lot of people feel hurt, angry, and depressed. But for others, it can mean the end to a bad or abusive marriage. Many people do not like to talk about it, but it can put a

    asked by Nikki Cobb
  170. math

    make a tally chart for the number of students in the third, fourth ,and fifth grade classes : 26,25,27,27,26,28,27.

    asked by briar
  171. English

    I have included the sentences I was most doubtful about. 1) The ship was cheered and they left the harbour. They went below the prow (I think "kirk" is the archaic word for "prow") 2)The mariners were then caught (can you say "struck") in (not by) a

    asked by Henry2
  172. English- Due Soon

    Please check for any errors and correct them. Thank You. The word Divorce can make a lot of people feel hurt, angry, and depressed. But for others, it can mean the end to a bad or abusive marriage. Many people do not like to talk about it, but it can put a

    asked by Angela
  173. Physics Disaster XXP

    Had The Same Teacher For Physics And Ughh I Am Stuck. Notes Help Me A Lot So If Anyone Could Write A Few Or A Bunch Out That Would Be Awesome. I Am Not The Type Of A Person Who Minds Writing Down Notes;) Teacher Told Us About Work And That The Formula For

    asked by Fizzylicous
  174. Texas Government

    Which of the following statements is the most accurate? a. Citizens expect the courts to be both neutral and responsive to public opinion. b. Citizens expect the courts to be neutral, but not responsive to public opinion. c. Citizens expect the courts to

    asked by HM
  175. Biology

    Is urine normally found in bladder of fetal pig? Why or why not?

    asked by Teddy
  176. ALGEBRA

    how many permutations are there of the following word. mathematics

    asked by MONICA
  177. physics

    can some one explain how to do this The muzzle velocity of 60g bullet leaving 4kg rifle is 500 m/s towards the east. What is recoil velocity of the rifle?

    asked by tim
  178. Accounting

    If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011?

    asked by Gabe
  179. accounting

    what are some examples of long format reports? When might an accounting department or accounting firm use these reports?

    asked by Anonymous
  180. Economics

    Im trying to figure out my grade what would i need to get a c average in the class;39%,of my grade is is based on 3 assignments(i got so far 62%,80%,haven't done the last assignment yet), 3 exams each worth 20%( i got a 2%,40%, haven't taken the last one)

    asked by kay
  181. Physics need help

    Find the unit vector perpendicular for the vector i+2j-4k in the xy-plane.

    asked by Lorry
  182. math

    how to solve this problem: max min(x-y)..... here where the max have written, under it x>=0 is also given. also under min y>=0 is given. Also tell that is this is equals to min max(x-y) ? (same as above under max x>=0, under min y>=0 is given) x and y both

    asked by shiya
  183. statistics

    which is a valid probability function a) p(x) for x=0,1,2 b)p(x)=x/1 for 0,1,2 c) p(x)=x/2 for 0,1,2

    asked by Letisha
  184. math

    what is 3x+2y=6

    asked by colby
  185. Chemistry

    Name the complexes: [V(ox)(Cl)3]- [Cr(F)3(I)(H2O)2] Write the formula for each of the following coordination compounds. Diamminetetrahydroxochromte (II) ion Bisethylenediaminediiodomanganese (IV) ion I think the name for the first one is

    asked by Betty
  186. Calculus(Pre)

    Can you explain linear speen and angular speed

    asked by Professor Calculus
  187. math

    21/b = 147/105

    asked by Magda
  188. com/150

    Could you please tell me if this is a good thesis statement for an expository essay on the personal benefits and values that can be instilled from doing voluntary community service? The personal benefits and values that can be instilled from doing

    asked by Rae
  189. chemistry

    how to prepare 1M,50ml buffer solution by taking Na2HPO4 and NaH2PO4.

    asked by umesh
  190. Chemistry

    From the following gases, choose the one with the lowest density at 25 C and 5 atm: H2S, CO2, C2H2, C2H6, C2H4 The answer is C2H2, but I am not sure why. Can you explain this? Thank you very much.

    asked by JE 11/16/11
  191. algebra

    For the sequence an=6+5*(n-1), its first term is__??__ ; its second term is__??__ ; its third term is__??__ ; its fourth term is__??__ ; its fifth term is__??_ ; its common difference d= __??__ .

    asked by lulu
  192. psychology

    Teenage mothers who are accustomed to existing on hamburgers, French fries, and cokes need to consider the nutritional needs of the child. Research has shown that a poor diet can: a. restrict the development of eye and hair color. b. produce prenatal

    asked by vedrana
  193. Algebra

    -(5x+5)-4+8x

    asked by Sam
  194. geometry

    a classroom is 10 yards long . the floor is being tiled with new square tiles that are each 10 inches long. how many tiles are needed to make 1 row the length of the classroom

    asked by Anonymous
  195. Chemistry

    For idometric titration of copper, why is HCl added to KIO3 and then titrated immediatedly? What would happen if iodine-thiosulfate titration was done in a highly acidic solution? If the copper reaction solution was basic, how would the iodine-thiosulfate

    asked by Ken
  196. Statistics

    a machine fills containers with a standard deviation of filling weights of 1.5. calculate the mean weight if only 4 % of the containers hold less than 19 ounces 

    asked by Jerry
  197. psychology

    when kevin started his car in the parking lot, he also turned on the radio to his favorite station. as he enetered the street next to the campus, he turned the radio up due to the increased background noise in the car. entering the highway, he again

    asked by vedrana
  198. Awards

    What kind of awards do they give out in middle school. I got ciztenships (like headliners) student of the month pricpals and honor rolls achivemnt in certain subjects NJHS (for some u made it) that's it what else do they giv out? Im really curois

    asked by Laruen
  199. Algerbra 1

    3. In your industrial oven, you bake two baking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. a. Write an expression that illustrates the total cost of all baked goods in the scenario

    asked by Connie
  200. math

    what is the population density if your goldfish population was found in 20x30 sq inch rectangular aquarium?

    asked by dani
  201. Algebra 2

    Solve the following equation for v: S = (-1/2)gt2 + vt

    asked by Anonymous
  202. Math- Algebra 2

    write in vertex form (by completing the square)y=4x2+40x+96

    asked by Justine
  203. USA PoliScience

    A majority of Americans believe the death penalty deters crime. a. yes b. no The other question was about Texas believing so. I would say Texans believe it will deter crime but over all majority of Americans do not.

    asked by HM
  204. Algerbra 1

    Multiply (-23)(-10)

    asked by Connie
  205. Physics

    Suppose A=3i-2j+k, B=-i-4j+3k&C is a vector lying along x-axis with the property that A.(B+C)=0. Then find vector C.

    asked by Meron
  206. math

    how would you write this word problem as an equation? When the gas gauge on her car was on the 3/8 mark, Karen pumped 15 gal. of gas into the tank in order to fill it. How many gal. of gas does the tank in Karen's car hold?

    asked by joe
  207. Word search

    What does unscramble to. It is foe thanksgiving

    asked by Jyllian
  208. math

    John and Maria had an 8 slice pizza. John ate 1/3 and maria ate 1/4. how much pizza was left?

    asked by marcela
  209. english-kite runner

    Hey so im reading the kite runner and i have to asnwer comprehension quesions n idk how to answer these questions...sparknotes kinda help but at the same time it doesnt. so can somebody help me. 1) How did Hassan come into Amir's life? What contrast is

    asked by unknown
  210. math

    Let f(x)-1/2x-5. The average rate of change from x = 11 to x = 27 equals _____.

    asked by Anonymous
  211. math

    Let f(x)-1/2x-5. The average rate of change from x = 11 to x = 27 equals _____.

    asked by Anonymous
  212. math

    Jenelle has a blue jug and a red jug, both containing water. The blue jug has 4 gallons and 1 quart of water in it, and the red jug has 2 gallons and 2 quarts of water in it. How much water is in both jugs?

    asked by Sanaya
  213. Chemistry Disaster XXP

    Hey. Just Started A New Unit In Chem And The Sad Thing Is That I Had A Sub And She Did Not Know Nothing About This Stuff. So If Anyone Could Write Some Notes For Me Here That Are Understandable That Will Be Able To Help Me With The Work I Have To Finish.

    asked by Fizzylicous
  214. Texas Government

    Campaign spending limits for state judicial races a. are mandatory. b. are voluntary. c. help Democratic candidates but hurt Republican candidates. d. have been effective in reducing campaign spending. I cannot find this answer. C and B are obviously not

    asked by HM
  215. Math

    n/2-5=15

    asked by Magda
  216. Technology in the Classroom

    There are several different hard drives available for a computer.Which of the following size hard drives is the largest?

    asked by annie
  217. math

    what is the product of 5 plus 3

    asked by levi
  218. Technology in the Classroom

    What is the ideal computer arrangement to use when you want to integrate computers directly into the classroom curriculum?

    asked by annie
  219. SOCIAL STUDIES

    What school was founded in 1636 to train Puritain Clergymen and is the oldest instituion of higher learning in the US?

    asked by Mya
  220. algebra

    The sum of the digits of a two-digit number is eleven. If the digits are reversed, the new number is sixty-three less than the original number. Find the original number. Help? &explain how you got the answer please.

    asked by nicole
  221. Chemistry

    How much energy in kJ is required to raise a 1.75 kg block of gold from 25.0 C to 105.0 C? The specific heat of gold is 0.03083 cal/g C, but I don't know how to compute the answer to the question.

    asked by Nathan
  222. physics

    Using Newton's Law of Universal Gravitation, compare the gravitational pull of the Sun on the Earth to the gravitational pull of the Moon on the Earth. Constants: Mass of the Moon, M☽= 7.348E22 kg. Moon's semi-major axis, a☽= 3.844E8 m. You can find

    asked by Maria
  223. chemistry

    A solution contains 33.3 g H3PO4 in 448 mL of solution. Calculate its molarity.

    asked by Anonymous
  224. Math

    find the missing value that will make ratios 51 to 18, ? to 6

    asked by Bryana
  225. grammar

    peer editing acamic papers require critical thi nking skills and diplomacy. is it subject verb agreement

    asked by kitty2
  226. statistics/psych

    Find TWO media examples of two types of correlations (explained below). You will have to do some research to find these. Next: (1) Find one media example (don�t make up your own) of a correlation that could be argued to be spurious (third variable).

    asked by ashley
  227. Math

    y/3.5+15=17

    asked by Magda
  228. spanish

    Can you help me with grammar/making sure this is coherent? C: Hola mi amigo! Mi nombre es Chaney. Y tú? K: Hola Chaney. Mi nombre es Kory. C: Vale..De dónde eres? K: Soy de Haverford. Soy Americano. Y tú? C: Soy de Maryland. Soy americano también. K: A

    asked by New help on spanish script
  229. Physics

    Which electromagnetic radiation can be used in space to detect low temperatures? Gamma Rays Infra Red Ultra Violet Or any of the others?

    asked by Jim
  230. algera 1

    lucy makes and sells photo albums her monthly expenses are 600$ plus 2$ for each album she sells. her income for each album sold is 10$ the inequality belowcan be used to find the least number of albums lucy should see so that her income is greater than

    asked by richelle
  231. algebra/trig help please

    is this graphable??? y=x^2-4x-2

    asked by bunny
  232. English

    Thank you. I still have a few doubts. So both sentences are correct: 1) " the ship was caught in a violent storm, then by mist and snow" OR "the mariners were struck by a violent storm .." 2) The sun rose on the left out of the sea, shone bright over the

    asked by Henry2
  233. physics

    a body of mass2kg is lying on a rough inclined surface of inclination 30 degree .find the magnitude of the force parellel to the incline needed to make the block move .1)up the incline .2)doun the incline. cofficent of static friction is 0.2

    asked by Anonymous
  234. English

    I urgently need you to revise this email. Thank you very much in advance. 1) My science colleague is willing to work on a project in English concerning ecology with some of her students in the years 10-11. 2) Though we haven't got a bilingual branch at the

    asked by Henry2
  235. physics

    plzz help me with my homework!!! Tarzan, played by Patrick Huard, 60 kg, must cross a stream 5 m wide, and full of hungry crocodiles. To do this, decides to slide along a sloping tree trunk, hollowed and moist so that there is no friction. After the trunk,

    asked by sarah
  236. Research topic, English

    My research topic is Banning Use of Cell Phones While Driving (include calls and texts) Could you give me some ideas of research questions? I have to have three. I already have three but I am not sure if they are research questions. will banning cellphones

    asked by HM
  237. math

    only 40% of people between the ages of 18 and 24 read the newspaper. what % of people reads the newspaper?

    asked by connor
  238. algebra

    Average cost of a bicycle is modeled by the function c(x)=.1x^2-1.7x+10 where c(x) is measured in dollars. how many bicycles should be built in order to minimize the average cost per bicycle?

    asked by mitch
  239. algebra

    как число 42 перевести в степень

    asked by Anonymous
  240. English/Writing

    This is for an essay: How do you say/phrase "he used to", "he does not", "he is confronted with", "he would rather", "they have evolved", and "have succeeded" in present tense?

    asked by Linda
  241. math

    How many 16ths is 87 1/2

    asked by Ellie Bomar
  242. entrepreneur

    Can someone who is a leader not be a manager? Why or why not? Can someone who is a manager not be a leader? Why or why not?

    asked by janie
  243. math

    An urn contains 5 red marbles, 4 blue marbles, and 3 green marbles. A marble is selected at random and then, without replacing the first marble, a second marble is selected at random. What is the probability of selecting a green marble and then a red

    asked by Melissa
  244. Current political issues in the US

    Could any one help me name some current political issues here in the US? Thanks in advance!

    asked by Mar
  245. algebra

    -9-(12-3x)

    asked by Sam
  246. math

    how many teaspoon of water can fill a 6 centimeters tall glass?

    asked by ted
  247. chemistry

    A solution of sulfuric acid in water that is 25% H2SO4 by mass has a density of 1178 g/ml. Which expression gives the molarity of this solution?

    asked by help
  248. math

    3a - 1 1/2 = -5 1/4

    asked by Magda
  249. Math

    Record 7 digits (0-9) in ascending order who has a mean of 3 and a standard deviation of 0. Thanks

    asked by Levi
  250. algebra

    Is the sequence an=8n-14 arithmetic? Your answer is (input yes or no)__??__ ; if your answer is yes, its first term is__??__ . its common difference is__??__ .

    asked by nikci
  251. math

    Record 7 digits (0-9) in ascending order whose mean, median, and mode are 1 and which have a standard deviation larger than 0. Thanks

    asked by Levi
  252. magda

    9.6/a = 0.8/0.6

    asked by Magda
  253. Math

    Record 7 digits (0-9) in ascending order that have an inter-quartile range of 4.

    asked by John
  254. Math

    Record 7 digits (0-9) in ascending order that have a mean of 3 and a median of 1. Explain how to come up with the answer as well please and thank you.

    asked by John
  255. Algebra

    (x+2)-(x-2)-12x =??

    asked by Sam
  256. psychology

    when kevin started his car in the parking lot, he also turned on the radio to his favorite station. as he enetered the street next to the campus, he turned the radio up due to the increased background noise in the car. entering the highway, he again

    asked by vedrana
  257. psychology

    Describe bi-polar disorder in two ways: clinically (objectively) and emotionally (subjectively).

    asked by Sharon
  258. science

    A push is an example of what?

    asked by Micheal
  259. arithmetic

    If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011

    asked by Susan
  260. Chemistry

    Given that the 2008 concentration of CH4 in the atmosphere was 1.88 ppm, calculate the total mass of CH4 in the atmosphere in 2008. The total mass of the atmosphere was 5.1x10^18 kg and the average molar mass of the atmosphere is 29.0 g/mole

    asked by Devin BOutte
  261. English

    I am doing the 4 humours for english home work and have to give examples of characters from tv, film or book that match the 4 humours so melancholy, phlegm, sanguine and choler.

    asked by Anonymous
  262. chemistry

    4g of h2 reacts 70 g of ci2 and forms

    asked by kevin
  263. Physics

    A 822 kg car accelerates from rest to 101 km/h in 1.15s. What change in momentum does the force produce?

    asked by Alyssa
  264. Math

    Write each percent as a decimal and as a fraction in simplest form. 5/8% would be .625% how do I make 5/8% into a fraction, or do I make .625% into a fraction.

    asked by Kyle
  265. English

    Do you think I should consider this sentence (1) as wrong? (I included it in a test) . 1) He tells how his ship was caught in a violent storm, then by mist and snow and finally was surrounded by ice. 2) I need to find a reading comprehension at

    asked by Henry2
  266. Math/Algebra

    Adding and subtracting radicals 3radical sign 5/12 + radical sign12/5 - 1/3radical sign 60 = Thank you!

    asked by Byran
  267. calculus

    f(x)= −x2lnx find the critical points , increasing & decreasing interval and concavity.Please just show me the steps on how to get the increasing and decreasing interval and critical pts . Thanks :)

    asked by mikki
  268. math

    14x+20y+negative17y+negative17x

    asked by felix
  269. social studies

    contribution of cesar beecana

    asked by sergio
  270. American History

    what policy did Roosevelt call for in his memo to fechner in 1935 pertaining to the CCC camps?

    asked by Anonymous
  271. Social Studies

    During Rutherford B. Hayes's presidential run, what's was bad or good about it?

    asked by Emily
  272. math

    (from current question)5x+negative13x+6x+4x simplify

    asked by felix
  273. algebra

    Lawrence has planted a round flower garden in his back yard. The garden is 8 feet across. How many feet of fencing does Lawrence need to enclose the flower garden?

    asked by Patti
  274. USA PoliScience

    Which of the following state courts is a magistrate court? a. county b. district c. appeals d. municipal I would say municipal courts

    asked by HM
  275. Physics

    planet orbits a star once every 2.84 10^7 s in a nearly circular orbit of radius 1.42 10^11 m. (a) With respect to the star, determine the angular speed of the planet. (b) With respect to the star, determine the tangential speed of the planet. (c) With

    asked by Kelsey
  276. math

    What is Bobby's number? It is between 15 and 25. If you subtract the tens digit from the ones digit, the difference is 8.

    asked by billy
  277. world history

    What were the 5 major Greek city-states ? Sparta,Athens, Corinth,Argos,Megara Right?

    asked by mike
  278. pre algebra

    my numerator is a prime number My denominator is divisible by 2 i am equivalent to 1/5

    asked by tom
  279. ETHNIC DIVERSITY

    I am trying to locate credible information in regards to the following question. Please note, I do not want the answers, just possible locations that might provide me with a place to start looking as I can not find anything recent. According to research

    asked by Laurie
  280. 5th grade math

    write the next three numbers in the pattern; 0.75,15,300,____,_____,____?

    asked by alexia
  281. media

    Huge corporations own every television network and most other media outlets. How does this affect their news coverage? How much influence do you think these corporations have on the public? Do you think the public is aware of the comments made by you and

    asked by cassandra
  282. Chemistry :P

    Hey. Just Started A New Unit In Chem And The Sad Thing Is That I Had A Sub And She Did Not Know Nothing About This Stuff. So If Anyone Could Write Some Notes For Me Here That Are Understandable That Will Be Able To Help Me With The Work I Have To Finish.

    asked by Fizzylicous
  283. Spanish 8th grade

    I have to put these in the past tense-Are they correct? 1. Tú hablas por teléfono. Tú habaste por teléfono. 2. Nosostros bailamos mucho los fines de semana. This would be the same in past tense, I think?? 3. Tú y yo cantamos los domingos. This would

    asked by Tim
  284. Physics

    A weight with mass m lies on a surface with no friction. The weight is also connected to a spring with springconstant k and then the weight is driven with outer force F(t)=F0sin(Ωt). There is a friction in the spring and he‘s described with –bv(t).

    asked by Amber
  285. English

    Could you please help me revise the rephrase of these sentences from Colerdige's The Ballad of the Ancient Mariner? 1) "The ship was cheered, the harbour cleared, Merrily did we drop Below the kirk, below the hill..." The ship was cheered and they left the

    asked by Henry2
  286. Technology in the Classroom

    A software package that you would like to run on your classroom computer lists a 486 computer as a minimum requirement. On which of the following compputers would you expect the software to be able to run?

    asked by peggy
  287. Soc 331

    Discuss current trends affecting social welfare. Do modern trends favor the solution of social issues? What are the most effective social welfare organizations today in your opinion, and why? I think that modern trends do favor solution, but I'm not

    asked by Karen
  288. chemisrty

    what is the final concentration of a solution if 100mL of water is added to a 25mL of 5.0 M NaCl?

    asked by mandy
  289. college alegebra

    Can someone please help me!!!!!! Find th eequation of the line containing the point P and having the slope m. Write your answer in slope intercept form. Graph this line. P= (0,0) M = 0

    asked by amy
  290. Physics

    A block of mass m = 5.2 kg is pulled up a è = 24° incline as in the figure with a force of magnitude F = 34 N.

    asked by Josh
  291. math

    8-x>4

    asked by sherry
  292. health and social care

    can you tell me about the nature vs nurture debate please thankyou

    asked by chloe
  293. science

    how many atoms are in a mole?

    asked by joe
  294. Physics

    Suppose vectors a&b if a x b=c. Show that c is perpendicular to a&b. Please help me.

    asked by Wube
  295. science

    I'm like 90% sure the answer is B, am I correct? An individual with the genotype Aa mates with an individual with the genotype AA. Which of the following is true? A) These two individuals will have four offspring. B) Half of the offspring will be Aa. C)

    asked by Jon
  296. Government US

    Which of the following people are least likely to believe that money has too much influence on judges? a. lawyers b. judges c. citizens d. police Wouldn't it be judges themselves?

    asked by HM
  297. SCIENCE

    The global water cycle provides renewable water, but a number of factors affect how much freshwater is available for human consumption. Describe these factors and circumstances.

    asked by Xan
  298. science

    If the conditions are above-freezing air inside a cloud and freezing air beneath it.What type of precipitation would this be?

    asked by Anonymous
  299. government

    Through the grants of power in the Constitution, the Framers sought to: (Points : 5) define the powers of state governments. create a government in which sovereignty was invested in the national government only. enumerate the rights of individuals. both

    asked by Anonymous
  300. mecs

    compare the formation of Islamic law to what you know of development of Western legal sytems?

    asked by lou
  301. middle east culture

    what are some of the different ways that the shariah can be interpreted and applied to modern society?

    asked by lou
  302. Math61

    R is bounded by Y=2x-x^2 and the x-axis. Find the centroid of R. Sketch the region.

    asked by Peter
  303. English

    I need synonymous and antonyms of 1) bluster 2) commentary 3) facet 4) synopsis 5) tarry 6) setback 7) fidelity I need this seven words to finish my homework . Pleaseeeee

    asked by Susana
  304. math

    Of the 50 state in the united state, 8 states have a population of one million people or fewer.Make a plan and write an addition equation to show that the sum of the state with more than one million people and the states whith one million people or fewer

    asked by Anonymous
  305. math

    What is the rule for finding coordinates after a 90 degree rotation? after a 180 degree rotation? after a 270 degree rotation?

    asked by Kory
  306. math

    how many digits can the product of 2 2 digit numbers have

    asked by Anonymous
  307. Science

    Which electromagnetic radiation can be used in space to detect low temperatures? Gamma Rays Infra Red Ultra Violet Or any of the others?

    asked by Jim
  308. Spanish 8th grade

    I have to put these in the past tense-Are they correct? 1. Tú hablas por teléfono. Tú habaste por teléfono. 2. Nosostros bailamos mucho los fines de semana. This would be the same in past tense, I think?? 3. Tú y yo cantamos los domingos. This would

    asked by Timothy
  309. Basic english

    Which of the following statements is not true? A. "Whom" can serve as the object of a preposition. B. "Whom" is an object pronoun. C. "Who" and "whom" are personal pronouns. D. "Who" is a subject pronoun.

    asked by Anonymous
  310. Science

    Example of a concept map for potential energy

    asked by Michael
  311. algebra

    x-19y+1-3x+23y-16

    asked by Anonymous
  312. Math

    find the distance around a rectangular swimming pool with a width of 20 yd and a length of 25 yd

    asked by sis
  313. Texas Government

    Prisoners in the state of Texas a. get longer sentences and serve more time than in most other states. b. get longer sentences but serve less time than in most other states. c. get shorter sentences but serve more time than in most other states. d. get

    asked by HM
  314. Math

    The attendance at the Harmony School carnival has shown a range of 200 people during the years from 2005 through 2008. Which graph could show the carnival attendance correctly? GRAPH A. 2008:360 2007:330 2006:200 2005:100 GRAPH B.2008:300 2007:350 2006:150

    asked by Mika