Most popular questions and responses by Stephanie
  1. Physics

    A small first aid kit is dropped by a rock climber who is descending steadily at 1.3 m/s. After 2.5 s, what is the velocity of the first-aid kit, and how far is the kit below the climber? This problem seems like it should be easy, but I'm not sure which

    asked on September 30, 2007
  2. Literature

    Discuss the significance of the "Ale house" in Oliver Goldsmith's "She stoops to conquer"

    asked on April 21, 2017
  3. Lanuage Arts

    Question For the last question of Lesson 6: Third Read: The Phantom Tollbooth, Act I Connections Education Language Arts 6 B Unit 3: Adventures and Imagination I do not understand which book to use for the answer. Plz can you help me I have tempory zero :/

    asked on May 23, 2015
  4. Physics- Vectors

    A bartender slides a beer mug at 1.4 m/s towards a customer at the end of a frictionless bar that is 1.8 m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar. (a) How far away from the end of the bar does the

    asked on February 5, 2011
  5. nursing/dosage

    The health care provider prescribed the adjustment of the IV hourly rate based on the nasogastric tube (NGT) output q4h (every 4 hours) for a client who had abdominal surgery yesterday. From 12:00pm to 4:00pm the NGT output was 240ml and the IV was infused

    asked on April 29, 2014
  6. business math

    Front Range Cabinet Distributors in Colorado Springs, Colorado, sells to its contractors with a 32% markup on cost. If the selling price for cabinets is $9,357, what is the cost to contractors based on cost?

    asked on February 1, 2016
  7. college chemistry

    Carbon monoxide is toxic because it bonds much more strongly to the iron in hemoglobin (Hgb) than does O2. Consider the following reactions and approximate free energy changes: Hgb + O2 ---> HgbO2 ∆G⁰ = -70 kJ Hgb + CO ---> HgbCO ∆G⁰ = -80 kJ Using

    asked on April 28, 2010
  8. math

    Home Depot wants to buy a new line of fertilizers. Manufacturer A offers a 19/14 chain discount. Manufacturer B offers a 24/12 chain discount. Both manufacturers have the same list price.

    asked on February 3, 2016
  9. chemistry

    strontium nitrate reacts with potassium iodate. What is its molecular,ionic and net ionic equations?

    asked on October 23, 2010
  10. Statistics

    Data are collected on the 35 students in a history course. Which of the following is not a variable of the data set ? A-student birth month B-political affiliation of student C-student age D-student address E-number of students in the data set

    asked on September 22, 2019
  11. physics

    Two concurrent forces have a maximum resultant of 45 newtons and a minimum of 5.0 newtons. What is the magnitude of each of these forces?

    asked on October 15, 2008
  12. Math

    Mike started a savings account by depositing $9. Each month, he deposits more money than the month before. At the end of 41 months, he has saved $9,389.00. How much more does he deposit each month?

    asked on January 5, 2015


    asked on November 14, 2012
  14. Physics

    A 100-kg box is suspended from two ropes; the left one makes an angle of 20degrees with the vertical, and the other makes an angle of 40degrees. What is the tension in each rope. I think I've got the basics: I have Fx=T1(x) + T2(x)= 0 to calc the first

    asked on April 22, 2011
  15. help!!! physics

    you want to nail a 1.6 kg board onto the wall of a barn. to position the board before nailing, you push it against the wall with a horizontal force to keep it from sliding to the ground. (a) if the coefficient of static friction between the board and wall

    asked on November 3, 2010
  16. Science

    Plz check it fast or just improve advice 9. Provide three statements that demonstrate the importance of units when describing motion. (3 points) Three statements that demonstrate the importance of units when describing motion are 1.unit i m/s indicate it

    asked on May 11, 2015
  17. physics

    A penny is dropped from the observation deck of the Empire State building (370 m above ground). With what velocity does it strike the ground? Ignore air resistance.

    asked on October 4, 2007
  18. social studies

    What was the original purpose of the Constitutional Convention?

    asked on January 25, 2012
  19. Physics

    Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure to pull it out. T = 11000 N A. What force would you have to exert perpendicular to the center of the rope to produce a force of 11000 N on the car if

    asked on October 9, 2014
  20. Physics

    Find the velocity after a stroller has traveled 6.32m.

    asked on October 24, 2007
  21. Social Studies

    1.How did their dependence on British trade affect the opinions of Americans in the East and North regarding the War of 1812? -more inclined to fund the War of 1812 -less supportive of the War of 1812 -secretively supportive of the War of 1812 -less

    asked on January 5, 2014
  22. Chemistry

    The density of solid Cr is 7.15 g/cm3. How many atoms are present per cubic centimeter of Cr? As a solid, Cr adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Cr?

    asked on February 19, 2013
  23. math

    Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with the price P of each doll. The company sold 5200 dolls when $26,000 was spent on advertising and the price of a doll was set at

    asked on January 21, 2015
  24. Physics

    A woman at an airport is towing her 20.0 kg suitcase at constant speed by pulling on a strap at an angle θ above the horizontal. She pulls on the strap with a 35.0 N force, and the friction force on the suitcase is 20.0 N. a) What angle does the strap

    asked on October 5, 2011
  25. physics

    How much work is done by the boy pulling his sister d = 25.0 m in a wagon as shown in figure below? Assume no friction acts on the wagon and he pulls with a force of 65.0 N and at an angle θ = 31.0°.

    asked on November 14, 2017
  26. MATH

    If 20% of population have blue eyes, and 5 people are selected at random, what is the probability that at least 4 of them have blue eyes? HOW DO I FIND THE SOLUTION TO THIS PROBLEM?

    asked on March 25, 2011
  27. Chem problem- percent yield

    Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3 (s) + 3Fe(s) ¨ 2Sb(s) + 3FeS(s) When 15.0 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this

    asked on March 22, 2009
  28. MATH

    You have $110 IN YOUR lunch account and plan to spend $2.75 each school day. a) Write and graph a linear equation that represents the balance in your lunch account (i just need help making an equation for this problem) b) How many school days will it take

    asked on February 5, 2011
  29. half-life of radioisotope

    A radioisotope has a half-life of 4 days. How much of a 20-gram sample of this radioisotope remains at the end of each time period? 1) 4 days 2) 8 days

    asked on October 31, 2008
  30. Math (Finite)

    A town council has 11 members, 6 Democrats and 5 Republicans. If a 3‐person committee is selected at random, what is the probability that Republicans make up the majority?

    asked on June 11, 2015
  31. physics

    What is the average useful power output of a person who does 5.50×106 J of useful work in 6.50 h? Working at this rate, how long will it take this person to lift 1850 kg of bricks 1.20 m to a platform? (Work done to lift his body can be omitted because it

    asked on November 14, 2017
  32. Math

    Crunchy Corn Chips are packaged in bags labeled "net weight 10 ounces." In fact, the weight of a bag of Crunchy Corn Chips follows a normal distribution with mean ì ounces and standard deviation ó ounces. Worried about customer complaints and potential

    asked on October 4, 2009
  33. physics

    two blocks are connected by a string. the smooth incline surface makes an angle of 42 degrees with the horizontal, andthe block on the incline has a mass of 6.7 kg. find the mass of the hanging block that will cause the system to be in equilibrium. (the

    asked on November 3, 2010
  34. Physics

    A .6-kg mass at the end of a spring vibrates 3.0 times per second with an amplitude of .13 m. Determine a.) the velocity when it passes the equilibrium point, b.) the velocity when it is .1 m from equilibrium. c.) the total energy of the system, and d.)

    asked on July 17, 2010
  35. Physics

    Two particles approach each other with equal and opposite speed v. The mass of one particle is m, and the mass of the other particle is nm, where n is just a unitless number. Snapshots of the system before, during, and after the elastic collision are shown

    asked on November 1, 2015

    A ship leaves port at 1:00 P.M. and sails in the direction N36°W at a rate of 25 mi/hr. Another ship leaves port at 1:30 P.M. and sails in the direction N54°E at a rate of 16 mi/hr. (a) Approximately how far apart are the ships at 3:00 P.M.? (Round your

    asked on September 28, 2011
  37. MATH

    Given the indicated parts of triangle ABC with γ = 90°, approximate the remaining parts. (Round your answers for a and c to one decimal place.) β = 51°31', b = 250.0 α = ° ' a = c = Given the indicated parts of triangle ABC with γ = 90°,

    asked on September 28, 2011

    Pluto has a mass of 1.30 1022 kg and a radius of 1.18 106 m (a) What is the acceleration due to gravity on Pluto? (b) How much would a 4.7-kg person weigh on this planet?

    asked on September 30, 2010
  39. Physics

    Jill screams and hears her echo 4.4 seconds later. How far from the canyon wall is she if the air temperature is 25 degree C?

    asked on April 2, 2013


    asked on November 14, 2012
  41. statistics

    At Guadalajara Airport, passengers must claim their luggage and then proceed to Customs. In the Customs area, each passenger will press a button that activates a modified stoplight. This light has only red and green bulbs. If the green light shows, the

    asked on January 25, 2010
  42. Chemistry

    How much HCO2H is obtained by reacting 3.0g of FeS, 1.60g H2S, and 1.60g CO2 if the reaction results in a 47.0% yield? I know that I need to the molar mass of each which FeS-3.2/87.9=0.036 H2S-1.6/34.1=0.047 CO2-1.6/44.0=0.363 I just don't know other step

    asked on February 20, 2012
  43. chemistry

    what is the solubility of Ag in water at 0 degrees celcius? what is it for calcium carbonate? and yellow brass?

    asked on June 21, 2010
  44. chemestry

    how many total atoms are there in the chemical formula B2(CO3)3

    asked on March 5, 2014
  45. Algebra

    Niko had his savings increased by 5% this year. He started with $350 in his account and calculated how much he had at the end of the year by using the following sets of calculations: $350×0.05=$17.50 $350+$17.50=$367.50 Find a single number that Niko

    asked on February 11, 2015
  46. Science

    ______ is a major component of bones and the proteins that build muscles.

    asked on December 2, 2012
  47. college chemistry

    Pentane, C5H12, and hexane, C6H14, combine to form an ideal solution. At 25⁰C the vapor pressure of pentane is 511 torr and that of hexane is 150 torr. In the vapor over a pentane-hexane solution at 25⁰C, the mole fraction of pentane is 0.15. What is

    asked on April 28, 2010
  48. Chemistry

    Ammonium carbonate decomposes upon heating according to the balanced equation: (NH4)2CO3(s) -> 2NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 27.0 degrees C and 2.03 atm from the reaction of 1.4kg of (NH4)2CO3. What is the pressure of

    asked on December 3, 2015
  49. Science

    Can you plz check asp 1. Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after they collide? (1 point) 0 kg m/s 50 kg m/s 100 kg m/s 200 kg m/s 2. What is the momentum of a 20.0 kg

    asked on May 11, 2015
  50. Mathematics

    Two cars drive from town A to town B at constant speeds. The blue car travels 25 miles per hour and the red car travels 60 miles per hour. The blue car leaves at 9:30 am and the red car leaves at noon. The distance between the two towns is 150 miles. Who

    asked on May 29, 2015
  51. english 4

    Why does the speaker of Childe Harold's Pilgrimage admire the ocean? A. The ocean is beautiful and its sounds are soothing. B. Many people depend on fish from the ocean for food. C. The ocean is unchanged by human activities. D. The ocean provides a way to

    asked on January 20, 2015
  52. physics

    Lance threw a ball straight up into the air. The ball's gravitational potential energy at its peak height was 0.4 joules, and its speed when it hit the ground was 4 meters per second. What was the mass of the ball?

    asked on March 2, 2011
  53. Chem

    When dissolved in an aqueous solution, which of the following salts will yield a neutral solution? Choose one answer. a. KCN b. NaHSO4 c. Na3PO4 d. AlBr3 e. MgBr2

    asked on December 3, 2010
  54. English

    1.If para- means beyond, then a paradox is something that is... 2.Examples of dogma 3.Using literal translations without the dictionary. -The prefix ortho- means "straight" or "correct" -The prefix hetero means "different" -The prefix homo means "same"

    asked on August 18, 2015
  55. Finite Math

    15 An appliance store sells two brands of televisions. Each Daybrite set sells for $425, and each Noglare set sells for $700. The store’s warehouse capacity for television sets is $400, and new sets are delivered only each month. Records show that

    asked on June 27, 2015
  56. Finite Math

    A town council has 11 members, 6 Democrats and 5 Republicans. If a 3‐person committee is selected at random, what is the probability that Republicans make up the majority?

    asked on June 11, 2015
  57. I NEED HELP!!!!!MATH!!!

    A person flying a kite holds the string 4 feet above ground level. The string of the kite is taut and makes an angle of 60° with the horizontal (see the figure). Approximate the height of the kite above level ground if 700 feet of string is payed out.

    asked on September 28, 2011
  58. pysics

    a .15 kg ball is placed in a shallow wedge with an opening angle of 120 degrees. for each contatct point between the wedge and the ball, determine the force exerted on the ball. assume the system is frictionless.

    asked on November 3, 2010
  59. Statistics

    The probability that a football game will go into overtime is 20%. What is the probability that two of three football games will go to into overtime? A) 0.384 B) 0.2 C) 0.04 D) 0.096

    asked on March 1, 2011
  60. AP Chemistry

    Which of the following is true about lanthanides? A. they are all radioactive B. they are highly electropositive C. they are very common elements D. they have low melting and boiling points

    asked on January 29, 2016
  61. math

    A jar contains 8 pennies, 3 nickels and 4 dimes. A child selects 2 coins at random without replacement from the jar. Let X represent the amount in cents of the selected coins. Find the expected value of X.

    asked on October 4, 2014
  62. Chemistry

    How many grams of a stock solution that is 87.0 percent H2SO4 by mass would be needed to make 200 grams of a 35.5 percent by mass solution? Show all of the work needed to solve this problem.

    asked on September 2, 2013
  63. Math

    Find the total tax deductions for each of the following weekly paychecks.weekly pay $98.00,$240.00,$150.00 FICA (7.65%)

    asked on January 15, 2019
  64. Chemistry

    Complete combustion of 7.00 g of a hydrocarbon produced 21.4 g of CO2 and 10.2 g of H2O. What is the empirical formula for the hydrocarbon?

    asked on June 6, 2012
  65. physics

    Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 16.4 N at a distance of 0.590 m from the hinges, and the second child pushes at a distance of 0.470 m. What

    asked on November 14, 2017
  66. AP Stats

    Surveys indicate that 5% of the students who took the SATs had enrolled in an SAT prep course. 30% of the SAT prep students were admitted to their first choice college, as were 20% of the other students. You overhear a high school student say he got into

    asked on January 2, 2009
  67. science

    If solid copper sulfate is mixed with water,______ is formed. A. a mixture B. a solution C. a solvent D. both A and B

    asked on October 18, 2011
  68. math

    A farmer needs to fence a rectangular piece of land.She wants the length of the field to be 55 feet longer than the width. If she has 1310 feet of fencing material, what should be the length and the width of the field?

    asked on January 24, 2013
  69. Chemistry

    The most abundant cation in seawater is the sodium ion. The evaporation of seawater gives a mixture of ionic compounds containing sodium combined with chloride, sulfate, carbonate, bicarbonate, bromide, fluoride, and tetrahydroxybrate.

    asked on January 27, 2012
  70. geometyr

    given triangle QRS=triangle TUV, QR=2x=7, RS=13,and QS=3x+2 and TV=7x-6 find the value of x

    asked on November 15, 2010
  71. Language Arts 6th grade

    This is from Phantom Toll Both. I am having trouble finding similarity and differences can you give me a hint of start me off that would be great. At least two ways which Tock and Humbug are alike and different

    asked on May 26, 2015
  72. Ap Chemistry

    A 100.0 mL aliquot of 0.200 M aqueous potassium hydroxide is mixed with 100.0 mL of 0.200 mL of 0.200 M aqueous magnesium nitrate.

    asked on October 4, 2012
  73. math

    Two trains heading toward each other are 400 miles apart. One train travels 15 miles per hour faster than the other train. If they arrive at the same station in 5 hours, how fast is each train traveling?

    asked on August 9, 2012
  74. physics

    the nail puller shown in the figure below you exert a force 53.2 cm from the pivot and the nail is 1.50 cm on the other side. What minimum force must you exert to apply a force of 1380 N to the nail to pull the nail up? 38.9 N is correct What is the

    asked on December 6, 2017
  75. stats: need help please

    4.34 Keno is a favorite game in casinos, and similar games are popular with the states that operate lotteries. Balls numbered 1 to 80 are tumbled in a machine as the bets are placed, then 20 of the balls are chosen at random. Players select numbers by

    asked on December 7, 2008
  76. statistics

    Some college students collected data on the intensity of light at various depths in a lake. Here are their data: Depth (meters) Light intenisty (lumens) 5 168.00 6 120.42 7 86.31 8 61.87 9 44.34 10 31.78 11 22.78 Take the natural logarithm (ln) of the

    asked on October 31, 2009
  77. chemistry

    1. how many grams are in 5.66 mol of CaC03 (3 is the subscript)? --------------------------------------- mass= 5.66 mol CaCO3 x mass/1 mol CaCO3 How do i finish this off? 2. find the number of moles in 508g of ethanol (C2H6O)? 2 and 6 are subscripts

    asked on December 10, 2008


    asked on November 14, 2012
  79. Algebra

    Mona earns 3 times as much as an actuary as she does as a writer. Her total income is $40,000 more than her brother. He earns half as much as Mona does as an actuary. What is Mona's salary as an actuary?

    asked on September 24, 2013
  80. Calc

    Consider a circle of radius 2 and a point P rotating around it. The angle θ, in radians, is given as a function of time t. (a) What is the value of θ when t=1.5? (b) Find the coordinates of P when t=1.5

    asked on January 15, 2011
  81. math

    how do u solve "why did zorna pour ketchup on her brothers hand?"

    asked on November 13, 2009
  82. Microbilogy

    Albert Kluyver "From elephant to...bacteria-it is all the same!" What did he mean?

    asked on March 1, 2011
  83. physics

    Glenda drops a coin from ear level down a wishing well. The coin falls a distance of 14.80 m before it strikes the water. If the speed of sound is 343 m/s, how long after Glenda releases the coin will she hear a splash?

    asked on October 4, 2007
  84. math

    A basket contains 11 pieces of fruit: 4 apples, 5 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the basket, and then Beth takes a piece at random. What is the probability that Jonas will get an orange and Beth will get an apple?

    asked on October 13, 2011
  85. Chem

    Given this reaction: Pb(NO3)2 + 2 KCl --> PbCl2 + 2KNO a. How many milliliters of 2.00 M Pb(NO3)2 will react with 50.0 mL of 1.50 M KCl

    asked on March 31, 2011
  86. science

    What is the freezing point of a solution of 12.0 g of CCl4 dissolved in 750.0 g of benzene? The freezing point of benzene is 5.48°C; Kf is 5.12°C/m.

    asked on May 6, 2009
  87. Science

    What does a warm front mean?

    asked on November 21, 2018
  88. Finite Math

    11. As part of a weight reduction program, a man designs a monthly exercise program consisting of bicycling, jogging, and swimming. He would like to exercise at most 38 hours, devote at most 3 hours to swimming, and jog for no more than the total number of

    asked on June 27, 2015


    asked on November 14, 2012


    asked on November 14, 2012
  91. Calc

    A mass is oscillating on the end of a spring. The distance, y, of the mass from its equilibrium point is given by the formula 2zcos(14πwt) where y is in centimeters, t is time in seconds, w and t and are positive constants. What is the furthest distance

    asked on January 17, 2011
  92. Science

    How does the convection of air produce thunderstorms?

    asked on November 21, 2018
  93. physics

    A siren mounted on the roof of a firehouse emits sound at a frequency of 900 Hz. A steady wind is blowing with a speed of 15 m/s. Take the speed of sound in calm air to be 343 m/s. (c) Firefighters are approaching the siren from various directions at 15.0

    asked on April 19, 2010
  94. Algebra

    Leo's garden, which is 6m wide, has the same area as Jen's garden, whichis 8m wide. Find the length of the two rectangular gardens if Leo's garden is 3m longer than Jen's garden.

    asked on September 24, 2013
  95. 10th grade math

    a rectangular picture 8 inches by 12 inches has a frame of uniform width x inches. Write a function expressing the total area A of the picture and the frame as a function of x.

    asked on October 29, 2011
  96. physics

    When you push a 1.70 kg book resting on a tabletop it takes 2.60 N to start the book sliding. Once it is sliding, however, it takes only 1.50 N to keep the book moving with constant speed. What are the coefficients of static and kinetic friction between

    asked on October 15, 2011
  97. math

    break apart these numbers 40x16

    asked on December 9, 2010
  98. Trigonometry

    Each base angle of an isosceles triangle measures 42°. The base is 14.6 feet long. A) Find the length of a leg of the triangle. Round to the nearest tenth of a foot.  B) Find the altitude of the triangle. Round to the nearest tenth of a foot.

    asked on February 26, 2010
  99. math

    my son informed me that a comic book I purchased for 10 cents in 1948 is worth $85. today what has been the average annual compound rate of return on that valuable asset

    asked on April 26, 2016
  100. algebra

    A salesperson earns a salary of $500.00 per week, plus a commision of 2% of her total weekly sales. write an algebraic expression that computes the total weekly salary. Let m represent the total weekly sales.

    asked on December 14, 2008


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