1. physics

    Can you get more force out of a lever than you put in? Can you get more work out of a lever than you put in. Explain

    asked by Anonymous on October 15, 2008
  2. Math

    asked by Jillian on August 30, 2009
  3. English- textual history

    What does it mean to research a textual history of a work? i.e. Hamlet's textual history

    asked by Nelson on December 11, 2007
  4. Eli whitney

    How did he invent the cotton gin what makes the cotton gin work

    asked by Anonymous on December 21, 2009
  5. statistics

    HOW DO YOU WORK WITH NUMBERS IN A SERIES LIKE 38 36 30 28 22 : THENEXT NUMBER WOULD BE WHAT . OR 2 5 11 20 32 47 AND THE NEXT NUMBER IN THE SERIES WOULD BE WHAT

    asked by teresa on January 31, 2010
  6. maths

    The sum of two numbers is 35. The second number is four times the first number.Work out the 2 numbers

    asked by rehman on February 19, 2018
  7. science

    Work is done when a force is applied or an object OR a force causes an object to move I think the second one.

    asked by Kiki on February 19, 2011
  8. math

    how many 1/10 inch pieces of string can be cut from a 16.3 inch string my work out 1/10 / 16.3

    asked by meghana on October 2, 2015
  9. pre cal

    how do you work out cot squared feta - CSC squared feta?

    asked by sam on April 26, 2011
  10. social economics

    Does international law work? In what situations is it most effective? In what situations is it least effective?

    asked by janet on October 21, 2010
  11. classroom instruction

    Teachers do need to establish ground rules about discussion: students should learn to listen politely to each other, and to agree to differ on occasion. Teachers can model calm and polite behavior, without giving in to irrationality. It is important to

    asked by scooby on March 10, 2010
  12. math

    plz plz I need this immediately "a man sold his stack of eggs for Rs.240.if he had 2 dozen more ,he would have got the same money by selling the whole of 0.5 per dozen cheaper.how many dozen eggs does he sell?"(solution)

    asked by Aly on January 26, 2016
  13. Chemistry

    A student titrates 0.100M KOH into 50.00 ml of weak acid HX. The pH of the solution is 4.25 after 20.00 ml of the base has been added, and equivalence point is reached when 40.00 ml of the base is added. 1. What is the concentration of the acid, HX ? 2.

    asked by Paul on March 9, 2011
  14. Chemistry

    I have the same question as anonymous person before me so I just copy the question from that person, here is the question please help the two of us! if you have a mixture of sodium chloride and sodium bromide, could you use its conductance to determine the

    asked by Kim on January 9, 2013
  15. algebra

    if 1, 2, 7 and 20, respectively, are added to the first terms of an arithmetic progression, a geometric progression of four terms is obtained. find the first term and common difference of the arithmetic progression the answers are both 3 .. but i don't

    asked by Sam on April 27, 2016
  16. Chem

    consider the equilibrium reaction: pbcro4(s) pb^2+ (aq) +cro4^2- (aq). A saturated solution of lead chromate, pbcro4 has a lead ion concentration of 1.4 x 10^-7 m. what is the value of the solubility product ksp for lead chromate?

    asked by Mad on June 3, 2013
  17. CHEMISTRY

    The solubility of LiCl is 83.5 g/100 g H2O at 20 oC , and is 89.8 g / 100 g H2O at 40 oC , then what is the required mass (in gram ) of LiCl to obtain a saturated solution in 300 g H2O at 25 oC ? please explain thank a lot

    asked by MAD on September 24, 2014
  18. chemistry

    Ascorbic acid is a weak organic acid also known as vitamin C. A student prepares a 0.20 mol/L aqueous solution of ascorbic acid and measures its pH as 2.40. Based on this evidence, what is the Ka of ascorbic acid?

    asked by Laura on April 6, 2008
  19. Chemistry

    Vinegar is a solution of acetic acid, CH3COOH, dissolved in water. A 4.69 g sample of vinegar was neutralized by 32.97 mL of 0.100 M NaOH. What is the percent by weight of acetic acid in the vinegar?

    asked by Chris on April 14, 2014
  20. Math

    4th and 7 terms of a G.P. are 1/18 and -1/ 486 respectively. Find the G.P. My solution: ar^3=1/18.... eq no1 ar^6=-1/486...eq no2 ar^6/ar^3 = -1/486÷1/18 r^3=-1/27 r=-1/3 Place this value in equation 1 ar^3=1/18 a*-1/3^3=1/18 a*-1/27=1/18 a=-7/6 Required

    asked by Prachi on July 18, 2017
  21. chemistry

    (10 Points) A water initially contains 50 mg/L of Mg 2+ The pH of the water is increased . until the concentration of hydroxide ion is 0.0005 M. Calculate the concentration (mg/L) of magnesium ion in this water at this pH. Assume that the temperature of

    asked by Jazmin on February 23, 2011
  22. chem - instrumental analysis

    A stock solution of ethanol is made by weighing out the correct amount of absolute ethanol in a tared beaker containing 15 ml of water. Why is it necessary to add water to the beaker before adding the ethanol?

    asked by puzzled on November 25, 2013
  23. Science

    Hi - I need help with the following questions: Julie dissolved 20 g of sugar in a cup of water. The mass of the solution was 500 g. What volume (mL) of water did Julie start with? How did you determine the starting volume of water?

    asked by Jill on March 24, 2011
  24. chemistry

    If it requires 30.0 milliliters of 1.2 molar HCl to neutralize 20.0 milliliters of NaOH, what is the concentration of the NaOH solution? Balanced equation: NaOH + HCl NaCl + H2O (3 points)

    asked by Anonymous on June 22, 2011
  25. Math

    The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is incre ased by 3/20. Find the original fraction. Pls include solution and workings thx :)

    asked by Ghiffari on October 24, 2011
  26. chemistry

    if it requires 35.0 milliliters of 0.50 molar NaOH to neutralize 25.0 milliliters of HCl, what is the concentration of the HCl solution? Balanced equation: NaOH + HCl yields NaCl + H2O

    asked by smith on November 17, 2010
  27. chemistry

    A 30.00mL sample of a clear saturated solution of PbI2 requires 14.7mL of a certain AgNO3 for its titration. I^-(saturated PbI2)+Ag^+(from AgNO3)--> AgI(s) What is the molarity of this AgNO3? I'm not really sure where to start.

    asked by brad on March 16, 2012
  28. CHEMISTRY

    PartA: Ammonia,is a weak base with a Ka value of 1.8x10^-5 .What is the pH of a 0.22M ammonia solution? PartB: What is the percent ionization of ammonia at this concentration? I got the answer for PartA which is pH=11.3. but i cant slove PartB..HELP!!!

    asked by CHEMISTRY on March 2, 2009
  29. A.P. Chemistry

    You have solutions of 0.200 M HNO2 and 0.200 M KNO2 (Ka for HNO2 = 4.00  10-4). A buffer of pH 3.000 is needed. What volumes of HNO2 and KNO2 are required to make 1 liter of buffered solution?

    asked by Oli on April 3, 2010
  30. Algebra

    Two graph never intersect. As such, the equation has no solutions. Create an equation where the left side is a linear function and the right side is a square root function. Make it so that the equation has exactly one solution.

    asked by Joe on January 2, 2017
  31. physics

    A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 79°C. The other sample has a mass of 83 g and is originally at a

    asked by Kelsey on April 28, 2010
  32. Statistics

    in a study of a weight loss program 30 subjects lost a mean of 2.6lbs after 12 months. methods of statistics can be used to show that if this diet had no effect, the likelihood of getting these results is roughly 6 chances in 1000. does the weight loss

    asked by Linda on August 28, 2017
  33. physics

    A 1100- kg car collides with a 1500- kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 35 o with respect to the positive x axis. The heavier car moves at

    asked by Alex on November 4, 2014
  34. Physics

    A 1100- kg car collides with a 1500- kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 35 o with respect to the positive x axis. The heavier car moves at

    asked by Alex on November 4, 2014
  35. Please revise my essay

    Dreams Are Taken Away It was a tough day on September 30, 2002 with a crowd of high school students carrying posters and signs marching in the middle of the street. None of them were happy at all. "Governor Davis id throwing awat our future with his unfair

    asked by shylo on November 4, 2007
  36. English

    The lack of exposure to the outdoors resembles social outcast in Tim Burton’s films creating the characters Edward Scissorhands and Willy Wonka to connect differently from others. Individuality is expressed specifically within these two films “Edward

    asked by Anonymous on November 5, 2015
  37. Math

    (2+3i)^6 Using Demoirves Theorem. I tried solving it out, but somehow it didn't work for me. (2+3i)^6 r=|z|=square root of 2^2 + 3^2 = square root of 13 z = square root of 13 * (cos____ + isin_______ ) At this point I am stuck, so can someone help me?

    asked by David on January 13, 2016
  38. statistics

    Suppose that 30% of all telephone calls at work are for personal reasons. If a random sample of 15 is taken, let X be the number of personal calls. The standard deviation of the # of personal calls is:

    asked by Anonymous on June 5, 2013
  39. physics

    Roger pushes a box on a 30° incline. If he applies a force of 60 newtons parallel to the incline and displaces the box 10 meters along the incline, how much work will he do on the box?

    asked by Anonymous on March 2, 2018
  40. Math

    What is the real value of x in the equation log(subscript 2)24-log(subscript 2)3=log(subscript 5)x? I really cannot remember at all how logs work. I know the answer is 125 but have no idea how to get there. Thanks in advance.

    asked by Natalie on November 17, 2007
  41. Physics

    At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of 92 N at an angle of 30 as shown in the figure below. The box of books has a mass of 22.0 kg, and the coefficient of kinetic

    asked by B on November 5, 2012
  42. Physics please check

    A person who weighs 655 N is riding a 98 N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 8.70 X 10^5 Pa, what is the area of contact between each tire and the

    asked by Mary on April 8, 2007
  43. Algebra I

    Thanks Reiny, but I'm still lost. I understand how you multipled by 10X on the right to get 17x, but you went too fast on the left, and I have no idea how you got 10x^2-20 from the starting left side. Can you show each step? Thanks, Carol x - 2(1/x) =

    asked by Carol on April 30, 2009
  44. Environmental engineering

    The company you work for plans to release a waste stream containing 7 mg/L of benzaldehyde . Assuming that benzaldehyde degrades according to the reaction: C7H6O + 8O2 → 7CO2 + 3H2O Calculate the theoretical carbonaceous oxygen demand of this waste

    asked by Jazmin on February 26, 2011
  45. Physics

    An object of mass m = 2.7 kg moves with initial speed vinitial = 2.2 m/s, then interacts with its environment, releasing 4.4 J of work. What is the speed of the object after the interaction is completed? My ans: I found KE initially and then subtracted

    asked by Nikita on November 17, 2009
  46. Social Studies

    I am making a presentation for my class. I'm comparing how a stage backdrop is like a trompe l'oeil. Do you think it'd be too presumptive to assume 15 year olds know what that is? I don't want to act condescending and go "a trompe l'oeil is a work designed

    asked by Hilary on March 5, 2009
  47. Calculus

    Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right endpoint of each interval and please explain, using a graph of f(x), what the Riemann sum represents. My cousin needs help

    asked by Adrianna on March 11, 2016
  48. Chemistry

    Calculate the standard cell potential for each of the electrochemical cells? What would the answers be to something like this? If someone could work out the answer I would really appreciate it. My online hw keeps telling me its wrong.

    asked by John on April 12, 2014
  49. Chemistry

    The following reaction represents the decomposition of hydrogen peroxide 2H2O2 -> o2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of Hydrogen peroxide, H2O2? Please walk me through this one, I need more then just

    asked by Andre on October 19, 2010
  50. PSYCHOLOGY HELP PLEASE!!

    "The origin of the abnormal behavior is not my concern. We will attack the behavior as it stands and work together to change it, thereby reducing the anxiety you are experiencing." This statement would be typical of the: a. medical perspective. b.

    asked by Anonymous on December 5, 2011
  51. Language and Composition

    Despite the women’s movement in the 70s, women still don’t receive equal pay for equal work. Obviously, any attempt to change the status quo is not going to succeed. Appeal to pity Non sequitur Appeal to authority Hasty generalization

    asked by Babygirl on September 19, 2018
  52. physics

    A spacecraft of mass 3.5 x 102kg was moving at 1.5 x 102ms-1 when its motor, operating at 8.4 x 102 kW fired for 5.0s Find the new velocity acquired by the spacecraft I don't know how to find the new velocity i found the work Power = w/t 840 x 5 = W 4200J

    asked by john on September 6, 2014
  53. math

    Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 40% down. Assume that the monthly cost to finance $1,000 is $6.00. What are the monthly payments? $ 1 .Viewing Saved Work Revert to Last

    asked by Anonymous on August 20, 2012
  54. math

    The garage you work for as an auto mechanic measures 230 ft. by 150 ft and handles 69 cars. Using the existing garage as a model, how much space would you plan to have in your garage? Number of cars parked at any one time = 24. Required area of service

    asked by C on July 5, 2016
  55. Chemistry

    Calculate the standard cell potential for each of the electrochemical cells? What would the answers be to something like this? If someone could work out the answer I would really appreciate it. My online hw keeps telling me its wrong.

    asked by John on April 12, 2014
  56. Physics

    A 71 kg skydiver jumps out of a plane at an altitude of 1370m. She reaches terminal velocity of 68m/s. She opens the parachute at an altitude of 328m, and lands with a speed of 2.8m/s. a)How much (negative) work is done by air resistance before she opens

    asked by Helen on February 20, 2017
  57. maths

    There are 5 lemon sweets and 4 orange sweets in a bag, susan takes one out randomly and eats it then ann takes one out at random. calculate the probability that they both take out a sweet of the same flavour. Is there 3 possible outcomes. I am really stuck

    asked by rennie on September 29, 2016
  58. performance management

    hello, i am a fresh graduate of finance, i was hired by a company, the manager put me on the position of performance management , which i have no idea. later we will have a first meeting, and my boss ask me to present my work plan/ideas for performance

    asked by fresh grad on January 17, 2018
  59. English

    Revise the sentence below to make it more formal: 'You're going to get really fat if you eat at fast foods restaurants all the time. My version: If you continue eating at fast food restaurants all the time, the possibility of becoming obese will be very

    asked by Tim on February 4, 2017
  60. Chemistry

    A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expansion. (Hint: Boyle's law applies) Please explain thoroughly!

    asked by Jack on October 3, 2010
  61. physics

    Consider a frictionless track as shown in the figure below. A block of mass m1 = 5.95 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 10.0 kg that is initially at rest. Calculate the maximum height to which m1

    asked by chuck on October 28, 2010
  62. Physics

    A mechanic pushes a 3.6 multiplied by 103 kg car from rest to a speed of v, doing 4600 J of work in the process. During this time, the car moves 27.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v m/s (b) the

    asked by sally on October 24, 2010
  63. chemistry

    1. From Thomson's work, which subatomic particle do you think he would feel are most important for the formation of compounds? Why? 2. Of the remaining two other kinds of subatomic particles, which do you think would take second place in importance? Why?

    asked by bob on September 17, 2012
  64. Punctuation & Grammar

    She is a pleasant 18-year-old female who states that she was at a pub where she was eating and actually fell while holding a tray and rolled her ankle. A) complete sentence B) fragment C) run-on My first thought is C) run-on, but I always second guess

    asked by Jenny on January 25, 2012
  65. Maths

    I have this question, don't know where to start! The total length of ropes a,b and c is 270cm. Rope a is 20cm longer than rope c, but 50cm shorter than rope b. What is the length of rope b? Have tried dividing 270 by 3 giving 90, then just moving figures

    asked by Bec on January 23, 2017
  66. chemistry

    A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. Calculate the work in units of kJ for the gas expansion. (Hint: Boyle's law applies) Please explain thoroughly!

    asked by Jack on October 4, 2010
  67. Psychology

    Could someone do this for me Imagine an action that you engage in every day and explain how neurons and neurotransmitters might work together to help you engage in the action by defining what the major parts of neuro do. ****Use complete sentences and

    asked by maguette on September 29, 2015
  68. Language arts

    Which question should you ask during third reading of the muti-draft reading progress? A. Who is the speaker, or the voice that "Say" the words of the poem? B. how has the work expanded my idea's or my imagination? C. What do the word choices and imagery

    asked by Kayla on January 14, 2015
  69. statistics

    a local content center reports that it has been experiencing a 15% rate of no shows on advanced reservations. Among 150 advanced reservations find the probability that there will be fewer than 20 no shows round the standard deviation to three decimal to

    asked by Anonymous on March 26, 2015
  70. Physics

    The specific heat capacity of a material is 1200 J/(kg°C). The temperature of 3.0 kg of this solid material is raised by 6.0°C. Ignoring the work that corresponds to the small change in the volume of the material, determine the change in the internal

    asked by Mary on April 16, 2007
  71. Calculus

    Solve: The posistion of a particle moving along a coordinate line is s=sqrt(5+4t), with s in meters and t in seconds. Find the particle's velocity at t=1 sec. A) 2/3 m/sec B) 4/3 m/sec C) -1/3 m/sec D) 1/6 m/sec Thank you!

    asked by Isha on December 30, 2012
  72. Chemistry

    1.33dm³ of water at 70°c are saturated by 2.25moles of Pb(NO3)2, and 1.33dm³ of water at 18°c are saturated by 0.53mole of the same salt. If 4.50dm³ of the saturated solution are cooled from 70°c to 18°c.calculate the amount of solute that will be

    asked by Kashim on March 20, 2017
  73. Chemistry- please check my work

    Question: When 1.97 grams of Pb(OH)2(s) is added to 1.00 liter of pure water at 25 C a saturated solution (some solid is present) is formed that has a pH of 8.97. Compute the Ksp value for Pb(OH)2 using the data. [OH]= 9.334e-6 and the [Pb^+2]= 9.334e-6/2=

    asked by Anonymous on May 12, 2009
  74. Chemistry

    Citric acid H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy. An aqueous solution is 0.688m citric acid. The density is 1.049 g/ml. What is the molar concentration?

    asked by Lauren on February 7, 2008
  75. problem solving

    Suppose water flows from a shower at a rate of 0.38 cubic feet per minute. Do you use more water by taking a 14-minute shower or by filling a bathtub with 0.6 cub yards of water, and by how much? Demonstrate strep-by-step solution.

    asked by ben on December 8, 2012
  76. Chemistry

    The following Chemical reaction produces a precipitate in an aqueous solution. NaOH(aq)+Mg(Cl)2(aq)NaCl(aq)+Mg(OH)2(s) With an equilibrium constant of K=1.3. If NaOH and Mg(Cl)2 are added in stoiciometric ratio and 1.20 mol of NaOH are present at

    asked by Bryce on April 6, 2016
  77. chemistry

    What is the pH of the solution created by combining 12.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH pH wHCl pH wHC2H3O2 12.30 What are the pH values if you take into account that the 8.00

    asked by Renee on May 5, 2008
  78. Chemistry

    1. A student wishes to set up an electrolytic cell to plate copper onto a belt buckle. Predict the length of time it will take to plate out 2.5g of copper from a copper (II) nitrate solution using 2.5A current. At which electrode should the buckle be

    asked by Alex on March 13, 2008
  79. Chemistry

    A 0.446-gram sample of iron ore is dissolved in HCl and the iron (Fe solid) is reduced to Fe2+. The solution is then titrated by 38.6mL of 0.105 N KMn)4. Calculate the percentage of Fe in the iron ore sample.

    asked by Kayla on January 22, 2017
  80. Chemistry Help!!!!!!

    95.65 grams of barium hydroxide were dissolved in 2000ml of water. 88 grams of carbon dioxide were passed through the solution producing a white precipitate. what was this white precipitate and how many grams of it were produced. explain please!!!! i got

    asked by Amber on March 29, 2012
  81. chemistry

    What is the percent ionization of 0.025 M chlorous acid, HClO2 solution? Ka HClO2 = 1.1*10^(-2) Answer: 48% What I did: HClO2(aq) + H2O(l) ->

    asked by % ionization on July 30, 2011
  82. chemistry

    A solution containing 40 g of calcium bromide requires 14.2 g of chlorine to react completely with it and 22,2 g of calcium chloride is produced in addition to ehaever bromine is obtained. How many grams of calcium bromide are required to produce 10.0

    asked by allen on October 1, 2016
  83. Chemistry

    Write the balanced neutralization reaction between H2SO4 and KOH in aq. solution. .350 L of .410 M H2SO4 is mixed with .300 L of .230 M KOH. What concentration of sulfuric acid remains after neutralization? ______ M H2SO4

    asked by Chelsea on October 4, 2013
  84. Minimum Concentrations - Urgent help!

    What is the minimum concentration? Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left. 8.0 x 10^-2 CaI2, K2SO4 1.5 x 10^-3 AgNO3, RbCl The Ksp values for both are

    asked by Amy on March 22, 2013
  85. Chemistry

    Citric acid H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy. An aqueous solution is 0.688m citric acid. The density is 1.049 g/ml. What is the molar concentration?

    asked by Lauren on February 7, 2008
  86. Chemistry

    A student wishes to set up an electrolytic cell to plate copper onto a belt buckle. Predict the length of time it will take to plate out 2.5g of copper from a copper (II) nitrate solution using a 2.5-A current. At which electrode should the buckle be

    asked by Anonymous on March 19, 2008
  87. chemistry

    What must be the minimum concentration of dichloroacetic acid in 1.00L buffer solution of a pH 0.91 dichloroacetic acid/sodium dichloroacetate buffer if the pH changes by 0.2 units when 0.057 moles HCl are added? Dichloroacetic Cl2CHCOOH ka= 5.50E-02 pka=

    asked by Antonette on February 5, 2015
  88. Math 111

    This is a question that deals specifically with WebWork. Here is the question: Write the set of points from -2 to 4 but excluding -1 and 4 as a union of intervals my solution to this would be: [-2,4]U(-1,4) my reasoning: The first set includes -2 and goes

    asked by Joey on September 29, 2011
  89. chemistry

    Silver nitrate (AgNO3) reacts with sodium chloride as indicated by the equation AgNO3 + NaCl ! AgCl + NaNO3 . How many grams of NaCl would be re- quired to react with 511 mL of 0.38 M AgNO3 solution? Answer in units of grams

    asked by cheri on September 19, 2012
  90. chemistry

    Acetic acid (CH3COOH) has a Ka of 1.8x10^-5. a buffer is to be prepared with a pH of 5.00 from solutions of CH3COOH and sodium acetate (NaCH3COO) of the same concentration. How many mLs of NaCH3COO would have been added to 100 mL of CH3COOH to make the

    asked by robyn on November 19, 2013
  91. heart and lungs/cardiorespiratory fitness

    the heart may become larger when an aerobic fitness program is followed.how does this benefit the body? a.the heart can work more efficiently b.the heart and lungs feel better c.the heart can use more ATP d.the heart and lungs look better when x-rayed my

    asked by susue on February 5, 2014
  92. Physics 11

    A girl pushes her little brother on his sled w/ a force of 35N for 840s. How much work does she do if the force of friction I'd 27N? I subtracted the force of friction from the applied force to get my net force of 8N but I don't know where to go from

    asked by Kayla on May 23, 2017
  93. Math

    A store has eight toasters left for sale. Five of the toasters work perfectly and three of the toasters are defective. A salesperson sells two of the eight toasters. Let T denote the number of defective toasters that were sold. Find P(T>µ) I calculated µ

    asked by Ramesh on November 20, 2018
  94. chem12

    for the equilibrium 2HI(g)--- H2(g) + I2 k eq = 8.0 2.0 mol of HI are placed in a 4.0 L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases. Inital 2HI 0.5mol/l H2 =0 I2=0 change 2HI= -2x

    asked by George on March 8, 2016
  95. 5th grade math

    cam had 35 more coins than kip. She gave he share to kip who divided all the coins equally into 3 stacks. If each stack has 45 coins,how many coins did cam have at first? My answer is 85, am i right if i am right please show me how you got the answer?

    asked by lidia on October 21, 2012
  96. CUC

    (a)Explain the term time dilation. (b) Show that an interval of time observed in a moving frame of reference will be less than the same interval observed in a stationary frame of reference.

    asked by Theresa on May 26, 2012
  97. calc

    can you just show me how to set this up? or a formula that could help? im confused. The length of a rectangle is increasing at 3 ft/min and the width is decreasing at 2 ft/min. When the length is 50 ft and the width is 20 ft, at what rate is the rectangle

    asked by bekah on January 2, 2011
  98. physics

    A bicycle odometer (which measures the distance traveled) is designed for 27” wheels. What happens if you use it on a bicycle with 24” wheels? Will the odometer show the same, a larger or small distance traveled? Explain.

    asked by Amy on March 6, 2012
  99. algebra

    while driving a car you realize that you only have one eighth gas remaining before you run out of gas you pull into a gas station and put is gallons of gas in your car's tank is now three fourths full how many gallons of gas does your car's tank hold show

    asked by patel on November 17, 2011
  100. Physical Science

    Two objects were lifted by a machine. One object had a mas of 2 kilograms, and was lifted at a speed of 2 m/sec. The other had a mass of 4 kilogram was lifted at a rate of 3 m/sec. ------------------------------------------- a) Which object had more

    asked by Jinja on September 26, 2017

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