1. physics

    An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is

    asked by Kwang hu111 on February 9, 2008
  2. poetry

    Who put the cat among the pigeons? Unfortunately we are unable to get hold of a copy of the book. Please can anyone help. put/set the cat among the pigeons (British & Australian) to do or say something that causes trouble and makes a lot of people angry or

    asked by dude on January 9, 2007
  3. algebra 1

    There are 8 speaking roles in the play. Of the 8 speaking roles, 5 are for males and 3 are for females. After the 8 speaking roles in the play are cast, the remaining cast members will make up the chorus. C. What is the probability that the set of siblings

    asked by Gabs on June 2, 2015
  4. physics

    An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is

    asked by jenish on February 7, 2008
  5. English

    A question on my previous post: is that a mistake to say "he requested me to leave" Can't "request" be followed by "someone to do something"? Can I write the summary below in the present tense though the chapter is in the simple past? 1)The first person

    asked by Henry1 on May 12, 2011
  6. Government questions..

    1 --In Japan, the process by which the prime minister can excuse the House of Representatives and trigger a general election is called? 2 -- How did Marx envision communism in its final form? 3 --from the states' point of view, what advantage did revenue

    asked by Jina on January 14, 2007
  7. Physics

    A team of dogs drags a 151 kg sled 0.863 km over a horizontal surface at a constant speed. The coefficient of friction between the sled and the snow is 0.223.The acceleration of gravity is 9.8 m/s^2. 1. Find the work done by the dogs. Answer in units of

    asked by Emeera on March 15, 2014
  8. Chem

    Mg + O2 ------> MgO if 1.00 g of magnesium is ignited in a flask containing 0.500liters of oxygen at STP, how many grams of magnesium oxide areproduced? what is the name and the amount of the reactant inexcess? My work: 1g Mg/24.3g=0.041 mol Mg; 0.5L

    asked by Lisa on December 30, 2014
  9. Physics/Calculus

    It takes a force of 21,714lb to compress a coil spring assembly on a New York City Transit Authority subway car from its height of 8in to its fully compressed height of 5in. A. What is the assemblys force constant? B. How much work does it take to compress

    asked by Tim on May 2, 2014
  10. science

    A sled is tied to a tree on a frictionless snow covered hill,as shown.If the sled weighs 77N ,1)Find the magnitude of the tension force T exerted by the rope on the sled .2)Find the magnitude of the normal force applied by the hill on the sled.MY WORK IS

    asked by ZENANDE on May 5, 2016
  11. math

    Andy finished his job 50% more work then Ali in the same amount of time. Both of them take 10 hours to finish a job. How many hours Ali to finish the same job?

    asked by Anonymous on October 26, 2016
  12. Algebra

    Stan and Hilda can mow the lawn in 20 minutes if they work together. If Hilda works twice as fast as Stan, how long would it take Stan to mow the lawn alone?

    asked by John's on February 16, 2016
  13. math

    Two men and six boys can cut a field in 3 hours. If the men work at 3/2 times that of the boys, how many men are required to cut the field in 2hours?

    asked by jay on June 18, 2015
  14. maths

    Two men and six boys can cut a field in 3hours. If the men work at 3/2 times that of the boys, how many men are required to cut the field in 2hrs.

    asked by jay on June 18, 2015
  15. math

    Tomas calculates that he will need 86 hours to build a boat. He can work on the boat 8 3/5 hours per week. How many weeks will it taje Tomas to build the boat?

    asked by Anonymous on October 28, 2010
  16. Math

    Write each of the fractions below as a division expression. Then write each fraction as a whole number or mixed number (I need help with this, because it confuses me as to how to write it as a division expression. Also sorry for no work saw.) 1. 5/4 2.

    asked by Ben on December 15, 2014
  17. Math

    Gab and Van can mow the lawn in 40 minutes if they work together. If Gab works twice as fast as Van, how long does it take Gab to mow the lawn alone ?

    asked by Shane on November 24, 2015
  18. Physics

    A 100-n boulder is sitting on a shelf 0.5 meters above the floor. If the boulder is moved vertically to another shelf 3.0 meters above the floor, how much work has been done on the boulder?

    asked by Nicole on October 15, 2008
  19. Calculus

    Find the average value of the function f(x) 8x^2-9x+8 on the interval [3,5]. Find the value of the x-coordinate at which the function assumes it's average value The average value is ? the x-coordinate is ? Please help and showing work is much appreciated.

    asked by Anonymous on December 7, 2014
  20. Gen Chem II

    You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery charge is useable for

    asked by kyle on November 18, 2013
  21. algebra

    summer begins from june 1st until august 31st. i can make $6.00 per hour working in a camera shop. $800 is the cost of living expenses. write equations for earning exactly $1000 and $2000 that include hourly wage and the cost of living expenses.solve your

    asked by eon on October 25, 2009
  22. Math Inequalities

    b) Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 30 tons of rock to cover the area. If each ton cost $60 and each tree is $84, what is the maximum number of trees you can buy

    asked by Anonymous on October 8, 2009
  23. economics 11

    The demand and supply schedules for milk are as follows: Price Quantity Demanded Quantity Supplied 10 0 125 8 20 95 6 40 65 4 60 35 2 80 5 a. On the same graph, draw the demand and supply curves. What does the demand curve for a product describe? What does

    asked by Anonymous on September 9, 2014
  24. FRENCH HELP URGENT!!

    I really need to have this paragraph checked to see if there is any mistakes!! My tutor has been sick all week! Thank you! Montreal est une ville exceptionnel que vous aimeriez. Si vous aviez le temps, vous ne regretteriez pas votre decision. Montreal est

    asked by Jevette on January 19, 2009
  25. PHYSICS

    1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree

    asked by JT on September 21, 2010
  26. Science-Astronomy

    Using the equation speed=distance/time, calculate the speeds(in km/hour) of a geosynchronous satellite I'm given that the distance from this particular geosynchronous satellite is 36000km from Earth, and orbits Earth 24h. I can not understand how to solve

    asked by Anonymous on October 6, 2008
  27. Math

    Mr. Smith bought shoes for $ 120 and a suit for $ 340. Find the total cost including tax if the tax rate is 5.5%. (a)$ 485.30 (b)$ 48.53 (c)$ 358.70 (d)$ 460 (e)$ 406 I cant figure out how to solve this problem but what i did was added the 120 and 340 and

    asked by Raymond on September 18, 2011
  28. Chemistry

    I don't know if i am solving for the number moles of NaI correctly, i multiply .21 by 1.67, is that incorrect? i know that to solve this you have to find the limiting reagent, but i think the problem might be that i am solving for moles wrong. If 210 mL of

    asked by Tokey on April 20, 2010
  29. MATH

    Use cross products to see if each pair of ratios forms a proportion. Replace each box with = or ≠. 1. seven-fifths and fifteen-tenths ( = ≠ 2. six-eighths and fifteen-twentieths = ≠ Solve each problem. 3. two-thirds equals twelve over x x = 18 x = 12

    asked by deborah on December 3, 2012
  30. physics help

    The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists

    asked by yoni on November 16, 2010
  31. Math

    If a worker wants to pack 200 newly harvested mangoes at average size of 3"x2" in delivery boxes .To optimize the cost and profit in packaging , the mangoes must be properly packed in boxes of similar sizes. To systemize counting , there must also be equal

    asked by Claudette on August 17, 2014
  32. Chemistry

    Tarnish on iron is the compound FeO. A tarnished iron plate is placed in an aluminum pan of boiling water. When enough salt is added so that the solution conducts electricity, the tarnish disappears. Imagine that the two halves of this redox reaction were

    asked by John on May 14, 2014
  33. Biology

    I just need somone kind enough to confirm my answers. 1. Membrane bound organelles are also referred to as ... A) vesicles B) channels C) integral proteins D) a and b I think the probable answer is A. 2. Plasmolysis of human red blood cells would occur if

    asked by Angelinna on November 27, 2007
  34. Chemistry

    The determination of 4.000 mmol of ZnCl2 is performed gravimetrically by the addition of NaCN solution in a Total volume of 200.00ml. Ksp = 3.0X10^-16 for Zn(CN)2. State and verify all assumption. Assume cyanide does not hydrolyze. a. Derive the COC and

    asked by WILL on December 22, 2012
  35. calculus

    A metal chain weighs 30 lbs and is 10 feet long. How much work is required to lift one end of the chain to a height of 15 feet (so that the other end of the chain will be at a height of 5 feet)?

    asked by Steven on December 1, 2011
  36. Statistics

    A firm has 82 employees. The average commute distance (that is, the travel distance from home to work) of the employees is 6.2 miles. How many employees have a commute distance of less than 15.5 miles? Select all that are correct. more than 25 more than 35

    asked by A on March 1, 2013
  37. chemistry

    i am trying to find the average rate of h2? from mastering chemistry home work. part a answer was 0.027m/s and part b answer was 0.054m/s. i cant find part c home answer

    asked by Tasha on April 19, 2011
  38. chemistry / physics

    the specific heat capacity of seawater is 3900 j/kg degrees celcius. how much energy is needed to heat 500g of seawater from 20 degrees celcius to 90 degrees celcius? if not i need to know how to work it out

    asked by freddie on October 3, 2010
  39. calculus

    A metal chain weighs 30 lbs and is 10 feet long. How much work is required to lift one end of the chain to a height of 15 feet (so that the other end of the chain will be at a height of 5 feet)?

    asked by Anonymous on April 17, 2011
  40. math

    Records from buzz's sawmill show that workers have a 0.02 probability of losing an arm and a 0.03 probability of losing a leg in a year. What is the probability that a worker does not lose an arm? What is the probability that worker does not lose and arm

    asked by Matt on May 18, 2012
  41. Advanced Math

    The probability of getting 2 heads and 1 tail when three coins are tossed is 3 in 8. Find the odds of not getting 2 heads and 1 tail. ANSWER: 5:8? Three Coins are tossed. Find the probability that exactly 2 coins show heads if the first coin shows heads.?

    asked by Patrick on June 10, 2009
  42. Chemistry (URGENT)

    Balance the following equations. 3. C12H22O11 + O2 = CO2 + H2O Answer: C12H22O11 + 12 O2 = 12 CO2 + 11 H2O 8. CH3OH + O2 = CO2 + H2O Answer: 2 CH3OH + 3 O2 = 2 CO2 + 4 H2O I balanced all the others just fine. But I seem to be having trouble with these two.

    asked by John on March 1, 2010
  43. History/admendment 5

    Mr.Daly is running short on cash and needs to gas up his car. After filling his car up at the local gas station he takes off without paying. He is put on trial and somehow (miraculously for Mr. Daly) he is found innocent. The prosecution finds new evidence

    asked by Marcus on January 16, 2009
  44. Physics

    A 5 g bullet has a speed of 300 m/s and embeds itself into a 500 g block. The block is initially at rest sitting on a rough surface which has a coefficient of kinetic friction equal to 0.5. A) What is the speed of the block after the collision? which is=

    asked by Melissa on October 15, 2015
  45. Business Math

    Joyce took out a loan for $21,900 at 12 percent on March 18, 2000, which will be due on January 9, 2001. using ordinary interest, Joyce will pay back on January 9 a total amount of: Answer: $24,068.10 Ordinary interest is 360 March 18 = 77 days January 9 -

    asked by Liz on January 29, 2012
  46. math/science

    I understand now how to do the + and - graph but how would i label the 2 axis. One is for temps but how would i show the objects/subjects? If i was doing + only i would put numbers up the side and object/subjects on the bottom line but with + and - numbers

    asked by nula on January 11, 2007
  47. PHYSICS - PLEASE HELP

    A box of weight w=2.0 N accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal. The normal force acting on the box has a magnitude n= 1.7 N, the coefficient of kinetic friction between the box and the plane is .30, and

    asked by Anonymous on November 30, 2012
  48. Physics

    (a) At a certain instant, a particle-like object is acted on by a force F=(2.9N)i-(1.7N)j+(5.7N)k while the object's velocity is v= -(3.2m/s)i+(4.5m/s)k. What is the instantaneous rate at which the force does work on the object? (b) At some other time, the

    asked by Donnie on March 9, 2014
  49. Math

    The floor of a round hut is 10m in diameter. A weaver charges $15.50 to make a mat to fit the floor . Find the cost of the mat per square meter . Work- area of a circle = 3.1 * 5*5=77.5 Cost per square meter =77.5\15.5= 5 cents per square meter

    asked by Amina on February 18, 2016
  50. chemistry

    Please, can someone help? Evaluate log 1. This is my work up until I have gotten stuck: log 1 1=10^x I can't find a common base for 1 and 10^x. Wow, my apologies, this is algebra, not chemistry. but actually I think they use it in chemistry too... Take the

    asked by Darcy on April 10, 2007
  51. Algebra

    A supervisor finds the mean number of miles that the employees in a 9the x has a line on top)department live from work. He finds X=2.9 and s=3. Which statement must be true? z376 is within 1 standard deviation of the mean. z37 is between 1 and 2 standard

    asked by Junior on July 18, 2014
  52. math

    A certain medicine is given in an amount proportional to a patient’s body weight. Suppose that a patient weighing 100 pounds requires 125 milligrams of medicine. What is the weight of a patient who requires 200 milligrams of this medicine? I am totally

    asked by jessica on August 24, 2010
  53. physics

    When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines

    asked by sweety on April 15, 2009
  54. General Physics

    Suppose that the force on the block FT is increased so that the block accelerates (starting from rest) at a = 2.2 m/s2. Now what is the net work done by all the forces acting on the block as it moves a distance of 15 m? 1. Wnet = −1968.75 J 2. Wnet =

    asked by Charles on July 26, 2013
  55. math

    A scale model racing car is 11 inches long, 3 inches wide, and 2 inches tall. The actual racing car is show at the right. How wide is the actual racing car?

    asked by Kim on February 28, 2012
  56. Chemistry

    When Solid NaHCO3 was placed in a rigid container witha volume of 2.5L and heated to 160 degrees Celsius, the equilibrium was reached. 2 NaHCO3(s) -> Na2CO3 (s) + CO2(g) + H2O(g) At equilibrium, some of the starting material remains and the total pressure

    asked by lawerence on May 5, 2015
  57. Math

    I recently inquired how to solve a right triangle. I was referred to the Laws o Sine & Cosine quite rightly. I have subsequently found a converter on the net which takes all the headache out of arriving at the correct answers. The thing is I still do not

    asked by Mike on October 28, 2006
  58. History

    Please check my answers. Question 1(Multiple Choice Worth 5 points) [06.06 MC] Which answer best describes how the Supreme Court viewed Maryland's taxing of the national bank created after the War of 1812? The Supreme Court decided Maryland was within its

    asked by Anonymous on February 22, 2017
  59. Physics

    A 17.0 kg monkey hangs from a cord suspended from the ceiling of an elevator. The cord can withstand a tension of 220N and breaks as the elevator accelerates. What was the elevator's minimum acceleration (magnintude and direction)? Please show me how to do

    asked by Kelly on January 2, 2007
  60. Chemistry

    I am supposed to create a "possible" mechanism for the reaction 2A + B --> 2C when the rate law is Rate=k[A][B]^2. This mechanism can include any letters (but must obviously include As, Bs, and Cs). Preferably it should be 3 or more steps including at one

    asked by Carrie on March 3, 2008
  61. number story

    Hi I wanted to know what is a number story? a number story is a story that has a problem that you have to figure out the solution to figure out the answer to the number problem. I know it's a little confusing, but that's the best i can do!!! thank you very

    asked by rosa on September 28, 2006
  62. chemistry

    You have 4.0 g of solid A, 100.00 mL of water (100.0 g of water), and the total mass of solid A combined with 100.00 mL of water is found to be 104.0 g. The mass percent of A in this solution is

    asked by eve on April 13, 2009
  63. Chemistry

    You have 2.0 g of solid A, 100.00 mL of water (100.0 g of water), and the total mass of solid A combined with 100.00 mL of water is found to be 102.0 g. The mass percent of A in this solution is

    asked by Tasha on January 14, 2010
  64. chemistry

    You have 4.0 g of solid A, 100.00 mL of water (100.0 g of water), and the total mass of solid A combined with 100.00 mL of water is found to be 104.0 g. The mass percent of A in this solution is ...

    asked by Katherine on January 10, 2010
  65. chemistry

    You have 2.0 g of solid A, 100.00 mL of water (100.0 g of water), and the total mass of solid A combined with 100.00 mL of water is found to be 102.0 g. The mass percent of A in this solution is

    asked by eng on January 7, 2010
  66. Chemistry

    How many grams of a solid mixture containing strontium chloride would one need to make 558 mL of a 0.100 M strontium chloride solution, if the solid mixture contains 58.6% strontium chloride by weight

    asked by Anonymous on February 24, 2017
  67. Chemistry

    The pK3 of formic acid is 3.75 A)what is the pH of a buffer in which formic acid and sodium formate have equimolar concentration? B)what is the pH of a solution in which the sodium formate is 10M and the formic acid is 1M?

    asked by Liz on April 30, 2013
  68. Physics

    4. In a shopping mall, two elevators pass each other moving in opposite directions. Each elevator to the other is 10 m/s. What is the velocity of each elevator relative to a person standing on the ground? One elevator has a velocity of 5 m/s and the other

    asked by Helga on August 27, 2018
  69. MATH

    TRAIN A, TRAVELING 70 MPH, LEAVES WESTFORD HEADING TOWARD EASTFORD 260 MILES AWAY. AT THE SAME TIME TRAIN B TRAVELING 60 MPH, LEAVES EASTFORD HEADING TOWARD WESTFORD. WHEN DO THE TWO TRAIN MEET? HOW FAR FROM EACH CITY DO THEY MEET? SHOW OR EXPLAIN HOW YOU

    asked by ROSEMARY on January 26, 2010
  70. phsyics

    A car races on a circular track of radius r. (a) Write an equation for the car's average speed when it travels a complete lap in time t. (b) The radius of the track is 100 m and the time to complete a lap is 14 s. Show that the average speed around the

    asked by price on March 19, 2014
  71. maths

    a ladder rests against a wall at an angle alpha to the horizontal its foot is pulled away from the wall through a distance a so it slides at bita making an angle bita with the horizontal show that a upon b=cos alpha-cos bita upon sin bita-sin alpha?

    asked by anurag on January 9, 2012
  72. Infant and Toddler

    What are some ways infants develop their language skills? Include some specific ideas for age appropriate toys,books,experiences. Angie and/or Jessica, Please note that we don't do students' homework for them. Our tutors try to give you the information to

    asked by Angie on August 20, 2007
  73. math help!!

    A boat travels down the river in 2.9 hours. The return trip up river takes 3.6 hours. A one way trip down or up river is a distance of 30 miles. If the boat is traveling at maximum speed, what is the boats speed measured in waters with no current? You need

    asked by lilly on February 22, 2013
  74. help math!!!

    A boat travels down the river in 2.3 hours. The return trip up river takes 3.7 hours. A one way trip down or up river is a distance of 26 miles. If the boat is traveling at maximum speed, what is the boats speed measured in waters with no current? You need

    asked by erin on December 13, 2012
  75. Physics

    A particle accelerator called Large Hadron Collider can accelerate protons to 14 TeV (tetraelectonvolts) (1TeV = 10^12eV) of energy. What is the relativistic mass of a proton that has total energy of 14 TeV? (express your answer in MeV/c^2) Would I use E=

    asked by Abby on April 30, 2008
  76. MATH

    Marys landlord raised her rent 25%.if her new rent is $500,how much did she pay before the increase? A.$375 B.$400 C.$425 D.475 FOR EACH ANSWER,CALCULATE WHAT THE PERCENT INCREASE WOULD BE IF THE RENT IS RAISED TO $500. WHAT STRATEGY DID YOU USE TO SOLVE

    asked by GOGO on June 10, 2007
  77. help math

    A boat travels down the river in 3.0 hours. The return trip up river takes 3.6 hours. A one way trip down or up river is a distance of 23 miles. If the boat is traveling at maximum speed, what is the boats speed measured in waters with no current? You need

    asked by erin on December 17, 2012
  78. chemistry

    Hello, im having major issues with this problem...A 100.0-mL solution of 0.017 M CH3COOH (Ka = 1.8 10-5) is titrated with 0.025 M NaOH. Now, I've gotten some the answers all ready (right answers have *)....but three of them are wrong, can someone tell me

    asked by A person on October 12, 2011
  79. English

    1. Each of you brings the photograph taken during the summer vacation. 2.After pasting the picture on a piece of paper, write down an explanation about the picture in English in brief. 3. After gluing the pictures on a big piece of drawing paper, hold a

    asked by John on August 29, 2008
  80. Math

    Suppose you want to use hardwood flooring for most of a 750 square foot apartment. Labor costs are $250 plus a $2 feet per square foot of installation. The cost per square foot of hardwood flooring is $7.00. Write an inequality to show the square feet in

    asked by Helene on December 3, 2010
  81. Physics

    1. The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.53 s for it to reach the floor. What is the mass m of the block on the left? There is no friction or mass in the pulley, and the connecting rope is very

    asked by Shelby on December 11, 2016
  82. science

    A shell is shot with an inital velocity of 20m/s at an angle 60 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment whose speed is immediately after the explosion zero falls

    asked by Brian on January 30, 2007
  83. Reading Comp.

    The modern hearing aid is, essentially, a miniature public-address system, which converts sound into electrical energy and then converts it back to sound again. A hearing aid can increase the sound level by sixty decibels or more, but it also distorts the

    asked by Arlynn on March 28, 2011
  84. Chemistry

    A cell was constructed with two lead electrodes. The electrolyte compartment is 1 M Pb(NO3)2 (aq). In the other compartment, NaI has been added to a Pb(NO3)2 solution until a yellow precipitate forms and the concentration of I- ions is .5 M. The potential

    asked by Anonymous on February 28, 2014
  85. Chemistry

    The oxidation of iodide ions by arsenic acid in acidic aqueous solution occurs according to the net reaction H3AsO4 + 3I – + 2 H3O +→ H3AsO3 + I3– + H2O. The experimental rate law for this reaction is Rate = k [H3AsO4] [I–] [H3O+]. According to the

    asked by Jenna on April 22, 2017
  86. Chemistry

    Regarding Flame Tests, why do you have to subject the sample to a flame? Which part of the Bunsen Burner is hottest? Why is it necessary to hold the loop in this part of the flame? What do you think will happen if you perform the flame test on a solution

    asked by Chu on July 10, 2008
  87. Chemistry

    Regarding Flame Tests, why do you have to subject the sample to a flame? Which part of the Bunsen Burner is hottest? Why is it necessary to hold the loop in this part of the flame? What do you think will happen if you perform the flame test on a solution

    asked by Chu on July 10, 2008
  88. Math (Check answers)

    1. Which statement is an example of Identity Property of multiplication? A. 8x0=0 B. 8x1=8 C. 8x-1=-8 D. -8x-1=8 2. What is another way to write 3x(4+7)? A. 3x4+7 B. 3x4x7 C. 3x4+4x7 D. (3x4)+(3x7) 3. Which property is represented 5+(8)=8+5? A. Identity B.

    asked by Senpai onii-chan on August 18, 2016
  89. Pre algebra

    How do I complete each ORDERED PAIR solution to the given equation? y=-x+9;(4),(9),(0) I looked up math ordered pairs at www.google.com, and these are the results. There may be a site in here with an explanation to help you.

    asked by Jaimz on June 8, 2007
  90. chemistry

    In the course of research, a chemist isolates a new compound with an empirical formula C3H3O2. 4.97 g of the compound when dissolved in 100. g of water produces a solution with a freezing point of −0.325°C. What is the molecular formula of the compound?

    asked by Diana on September 8, 2010
  91. STATISTICS

    Researchers asked questions in 1001 randomly selected adults in Russia. We found a statistically significant, strong positive correlation between income and the number of recycling bins filled their houses per week (r = 0,77). Choose the best

    asked by Marian on September 6, 2013
  92. Physics

    The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.60 multiplied by 104 kg/s, with an exhaust speed of 2.55 multiplied by 103 m/s. (a) Calculate the thrust produced by these engines. answer should be in N (b) Find the

    asked by Force and Velocity on October 26, 2010
  93. chemistry

    When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation

    asked by Suzanne on April 27, 2014
  94. Macro econ

    Use the Keynesian model for this problem. Assume the following model of the economy, where c, t, and nx are positive constants: Y=C+Ip+G+NX C= 200 0 + c(Y-T) T= 400 + tY Ip = 1500 G = 2000 NX = 1000 - nxY where c=.75, t=.2, nx = .10 a) What is the

    asked by Ty on February 9, 2008
  95. math

    The region R, is bounded by the graphs of x = 5/3 y and the curve C given by x = (1+y^2)^(1/2), and the x-axis. a) Set up and evaluate an integral expression with respect to y that gives the area of R. b) Curve C is part of the curve x^2 - y^2 = 1, Show

    asked by leess on March 2, 2008
  96. math

    The region R, is bounded by the graphs of x = 5/3 y and the curve C given by x = (1+y^2)^(1/2), and the x-axis. a) Set up and evaluate an integral expression with respect to y that gives the area of R. b) Curve C is part of the curve x^2 - y^2 = 1, Show

    asked by PLEASE HELP! on March 2, 2008
  97. 12 data management

    3 oeople - john joan and kim throw a ball to each other. there is a probability of 1/3rd that johnwill throw it to joan. probability of 1/2 that joan wil throw it to kim. probability of 1/4th that kim will throw it to john. A. show in a Markov chain as a

    asked by Linda on October 8, 2008
  98. physics help me bob!

    A rock is thrown from the roof of a building with a velocity v0 at an angle α0. The height of the building is h. (i)Calculate the horizontal distance traveled by the projectile before it strikes the ground. (ii)Show that the speed of the rock just before

    asked by dt on December 2, 2012
  99. microbiology

    can anyone help me to figure out how to work out STANDARD DEVEATION CALCULATIONS please? Do you have a specific example? There are formulas for standard deviation you can use if you are expected to do the calculations by hand. You can also use calculators

    asked by nicky on April 29, 2007
  100. Education

    I need two articles detailing community service programs in any two public schools. I can find schools that onclude these sorts of programs, but they never give information on what sorts of projects they need to perform, the number of hours, or other

    asked by Ian on December 19, 2007

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