Most popular questions and responses by jimmy
  1. Math Help

    Math unit test. (1) write the fraction 1/8 as a percent. round to the nearest hundredth of a percent where necessary. 12.50% 37.50%**** 62.50% 80.00%

    asked on December 15, 2016
  2. Physics

    Bees often work together for the greater good of the hive. Sometimes they can get excess charge on them. Four pairs of bees, which can be represented as identical, conducting spheres, bump into each other in the hive. Rank the bees in the order of the size

    asked on January 12, 2014
  3. Physics

    As two trains move along a track, their conductors suddenly notice that they are headed toward each other. The figure below gives their velocities v as functions of time t as the conductors slow the trains. The slowing processes begin when the trains are

    asked on September 1, 2014
  4. English

    Type of sentence based upon choices: When packing the order yesterday, one important item was omitted. (A) Properly constructed (B) Dangler (C) Misplaced (D) Lacks parallel parts. I believe it is A?

    asked on September 28, 2016
  5. U.S History

    Which factor, self-interest or idealism, was more important in driving American foreign policy in the years 1895-1920? Thanks for the info :)

    asked on February 26, 2009
  6. math

    Russ is putting his vacation photographs in an album that is 12 1/8 inches long and 10 1/4 inches wide. Should he trim the edges of the photographs to 12 inches long and 10 inches wide or to 12 1/2 inches long and 10 1/2 inches wide?

    asked on November 9, 2016
  7. Chemistry

    Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to

    asked on November 15, 2016
  8. chemistry

    In comparing the phase diagram for water with that of a solution of sugar in water, all of the following decrease except a) the vapor pressure b) the boiling point c) the freezing point d) the triple point

    asked on February 3, 2012
  9. Physic

    A fan at a rock concert is 30 m from the edge of the stage. The sound intensity level at the edge of the stage is 110 dB. The fan's eardrums have a diameter of 8.4mm. How much energy is transferred to each eardrum in one second? (Hint: It may help to asume

    asked on November 7, 2009
  10. Chemistry

    Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to

    asked on November 15, 2016
  11. Chemistry

    Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to

    asked on November 15, 2016
  12. Social Studies

    Which of the following factors contributes to South Asia's environmental challenges?

    asked on December 19, 2018
  13. Physic

    The back wall of an auditorium is 29.0 m from the stage. If you are seated in the middle row, how much time elapses between a sound from the stage reaching your ear directly and the same sound reaching your ear after reflecting from the back wall?

    asked on November 8, 2009
  14. physis

    Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 µC charge, while the other (S2) has −7.7 µC charge. a)What

    asked on January 12, 2014
  15. Physics

    Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 µC charge, while the other (S2) has −7.7 µC charge. a)What

    asked on January 12, 2014
  16. Physics

    A 1.00-kg beaker containing 2.0 kg of oil (density = 916 kg/m3) rests on a scale. A 2.00-kg block of iron is suspended from a spring scale and is completely submerged in the oil. Find the equilibrium readings of both scales. I was able to find the

    asked on December 3, 2010
  17. Social studies

    Specialization most helps producers by growing what? A Consumer Demands B labor productivity C prices of goods D levels of trade I think its A

    asked on December 7, 2016
  18. Math

    Ann has $198 more than her sister. After her mom gives Ann $20 and her sister $60, Ann has twice as much money as her sister. How much money did Ann have at first?

    asked on October 20, 2013
  19. Environmental Engineering

    Consider the air over a city to be a box 100km on a side that reaches up to an altitude of 1.0 km. THe air is blowing into the box along one of its sides with a speed of 4 m/s. Suppose an air pollutant with a reaction rate of K = 0.20/hr is emitted into

    asked on September 19, 2011
  20. Business Math

    Pete Air wants to buy a used Jeep in 5 years. He estimates the Jeep will cost $15,000. Assume Pete invests $10,000 now at 12% interest compounded semiannually. Calculate the maturity value of the investment

    asked on November 10, 2013
  21. Chemistry

    Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.

    asked on March 4, 2012
  22. Physics

    A 25.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 3.50 cm in diameter. A strong wind bends the pole much as a horizontal force of 900 N exerted at the top would. How far to the side does the top of the pole

    asked on February 21, 2015
  23. PreCalc

    An earthquake measuring 6.4 on the Richter scale struck Japan in July 2007, causing extensive damage. Earlier that year, a minor earthquake measuring 3.1 on the Richter scale was felt in parts of Pennsylvania. How many times more intense was the Japanese

    asked on December 4, 2016
  24. chemistry

    Why is it important to use the same pipet through out the experiment?

    asked on April 6, 2016
  25. math

    make up a set of at least twelve numbers that has the following landmarks. minimum:50 median:54 maximum:57 mode:56

    asked on December 2, 2011
  26. Math

    The sum of three times a number and 2 less than 4 times that same number is 15. Which of the following equations could be used to find the value of the number , n? 1. 3n + 4n-2=15 2. 3n t 4(n-2)=15 3. 4n +3(n-2)=15 4. 3n - 4(n-2) = 15 I pick 3.

    asked on January 25, 2018
  27. Math

    The number 57,733 contains two sets of digits in which one digit is ten times as great as the other. What are the values of the digits in each set?

    asked on October 1, 2012
  28. Math

    In the number 7,725 which places contains digits where one digit is ten times greater as the other?

    asked on October 1, 2012
  29. statistics

    Assume that women's heights are normally distributed with a mean=63.6 in. and standard deviation = 2.5 in. a) To be eligible for the US Marine Corps, a woman must have a height between 58 in. and 73 in. Find the percentage of women who satisfy that

    asked on July 29, 2012
  30. math

    If the store purchases an item at a wholesale cost of $3.50 per item, and it is sold at a retail value of $5.00 per item. What is the gross profit percentage of the item? (formula: gross profit percentage = [(retail - cost) divided by retail] X 100 )

    asked on June 15, 2011
  31. life orientation

    to what extent can intra personal conflict affect communication of relationships

    asked on February 25, 2015
  32. physics

    A heat pump has a coefficient of performance of 4.5. If the heat pump absorbs 46.1 cal of heat from the cold outdoors in each cycle, what is the amount of heat expelled to the warm indoors? (in cal) tried everything but got nothing.

    asked on December 17, 2012
  33. chemistry

    Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.

    asked on March 4, 2012
  34. english

    1)In "The Love Song of J. Alfred Profrock," what mood is created by a setting in which the central character is concerned with the direction of his life? a)cheerful and exhilarating b)introspective and indecisive* c)honey and reassuring d)impersonal and

    asked on January 9, 2012
  35. Chemistry

    How much energy (heat) is required to convert 248 g of water from 0oC to 154oC? Assume that the water begins as a liquid, that the specific heat of water is 4.184 J/g.oC over the entire liquid range, that the specific heat of steam is 1.99 J/g.oC, and the

    asked on September 16, 2008
  36. Physics

    two lenses,one converging with focal length 20.0 cm and one diverging with focal length -10.0 cm , are placed 25.0 cm apart. An object is placed 60.0 cm in front of the converging lens. Determine A) The position and B) the magnification of the final image

    asked on March 25, 2008
  37. Geometry plz help its not to hard

    18. Two lines intersect at a point. the vertical angles formed are supplementary. What is the measure of each of the angles? Explain.

    asked on October 14, 2015
  38. 4th grade

    why is .4 equal to .40

    asked on December 3, 2009
  39. English

    Why deemphasizing negative test results in a report on your product idea is unethical practice?

    asked on September 12, 2009
  40. calculus

    The demand for your hand-made skateboards, in weekly sales, is q=-5p+600 if the selling price is $p. You are prepared to supply q=5p-400 per week at the price $p. What price should you sell your skateboards for so that there is neither a shortage nor a

    asked on July 4, 2013
  41. Math

    Can the rations 2/18 and 5/45 make a proportion?

    asked on August 9, 2010
  42. Anthropology

    Ms.Sue, I need your assisting please. Can you please give me advice on this Chipolatta Culture Music, I need you. Thank you. The Chipolatta music instruments consist of things like, drums, flutes, and other percussion instruments including their voices

    asked on February 21, 2015
  43. physics

    A satellite of mass 225 kg is launched from a site on Earth's equator into an orbit at 200 km above the surface of Earth. (The mass of the Earth is 5.98 1024 kg, and the radius of the Earth is 6.38 103 km.) (a) Assuming a circular orbit, what is the

    asked on December 4, 2013
  44. Chemistry

    A 35ml 0.1M AgCl solution is mixed with 15ml 0.25M MgCl2 solution. Calculate the moles and molarities of the Ag+, NO3-,Mg2+, and Cl- ions in the solution mixture.

    asked on September 1, 2008
  45. Math

    Larry Mitchell invested part of his $27,000 advance at 5% annual simple interest and the rest at 2% annual simple interest. If his total yearly interest from both accounts was $720​, find the amount invested at each rate

    asked on November 8, 2017
  46. Calculus

    The function f is continuous on the interval [4, 15], with some of its values given in the table above. Estimate the average value of the function with a Trapezoidal Approximation, using the 4 intervals between those given points. x 4 9 11 14 15 f(x) -6

    asked on May 16, 2018
  47. English

    In line 16 of “The Nymph’s Reply to the Shepherd,” in what way does the speaker’s word choice reveal a striking balance of opposites to illustrate the theme of the harmful effects of time?

    asked on October 25, 2018
  48. Physics & Gravity

    The acceleration due to gravity on the moon is about one-sixth its value on earth. If a baseball reaches a height of 51 m when thrown upward by someone on the earth, what height would it reach when thrown in the same way on the surface of the moon? Answer

    asked on September 9, 2011
  49. Chemistry

    Which electron is, on average, further from the nucleus: an electron in a 3p orbital or an electron in a 4p orbital?

    asked on March 16, 2009
  50. Physics

    A long uniform rod of length 6.66 m and mass 6.74 kg is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest in a vertical position as in the figure. Question 1: At the instant the rod is horizontal, find its angular

    asked on October 31, 2008
  51. Art

    the rhythm and movement of this piece was created through

    asked on January 6, 2016
  52. math

    Susan is 5 years older than her sister jennifer the sum of their ages is 51 write and equation and find the ages of both sisters

    asked on October 24, 2012
  53. Calculus HELP plz

    Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=4x^1/2,y=5,2y+1x=5 Do you really mean "2y+1x=5" ? It is not customary to use the coefficient 1 in front of a variable.

    asked on May 5, 2007
  54. calculus

    I need help on finding the local linear approximation of tan 62 degree. i got 1.77859292096 can someone check if i got it right? tan(60+2) = (tan 60+ tan 2) / (1- tan60 tan 2) But tan2 appx = sin 2deg = sin2PI/180= 2PI/180 tan 62=(tan 60+2PI/180) / (1-

    asked on March 20, 2007
  55. Math

    Point G is the centroid of triangle ABC. Use this given information to find the value of X. CG =3x+7 and CE= 6x FG = x+8 and AF = 9x - 6 BG = 5x -1 and DG = 4x -5

    asked on January 18, 2012
  56. chemistry.

    Which hydrocarbon pair below have identical mass percentage of C? A: C3H4 and C3H6 B: C2H4 and C3H4 C: C2H4 and C4H2 D: C2H4 and C3H6 E: None of the above My answer is E...Can any one help me?

    asked on September 27, 2009
  57. Science

    Humidity is the amount of water vapor in the air at a given time. At warm temperatures, air can hold more moisture than it can at cold temperatures. Relative humidity is the amount of vapor the air is holding expressed as a percentage of the amount the air

    asked on July 18, 2008
  58. calculus

    I really hate to dump a problem like this on the teachers here, but I really need to get an answer to this. Thank you and I'm sorry. A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions

    asked on December 7, 2012
  59. Math

    An observer 2.5 miles from the launch pad of a space shuttle measures the angle of elevation to the base of the shuttle to be 25 degrees soon after lift off. How high is the shuttle at that instant? (Assume that the shuttle is still moving vertically)

    asked on May 10, 2011
  60. calculus edit

    1. Find the volume formed by rotating the region enclosed by x=5y and x=y^3 with y is greater than or equal to 0 about the y-axis. 2. Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis

    asked on May 4, 2007
  61. English Check answers

    Choose the best topic sentence for the passage. It used to be unusual to live to the age of 90. Better diet and medicine have made 90 a more common age. Today, some people even live to be well over 100. A. People can live a long time. B. Today, some people

    asked on June 24, 2016
  62. physics

    Four railroad cars, each of mass 2.50 x 104 kg, are coupled together and coasting along horizontal tracks at some speed vi. Superman, riding on the second car, uncouples the very front car and gives it a big push, increasing its speed in the same direction

    asked on November 22, 2017
  63. General Math

    An island has 12 fur seal rookeries (breeding places). To estimate the fur seal pup population in Rookery A, 6982 fur seal pups were tagged in early August. In late August, a sample of 700 pups was observed, and 245 these were found to have been previously

    asked on March 13, 2017
  64. chemistry

    a sample of gas is collected over water at a temperature of 35 degrees celcius when the barometric pressure reading is 742.0 torr what is the partial pressure of the dry gas?

    asked on May 18, 2010
  65. physics

    A submarine is constructed so that it can safely withstand a pressure of 1.6 x 107 Pa. How deep may this submarine descend in the ocean if the average density of seawater is 1025 kg/m3.

    asked on December 13, 2009
  66. Finance

    A business opportunity has presented itself to you and one of your classmates. Your opportunity is to enter the fast growing craft beer industry. Your projected sales in the first year is 8300 kegs. Your projected growth rate is 5 percent. Entering the

    asked on October 4, 2015
  67. anthropology

    What are the differences between lineages, clans, moieties, and phratries are all types of decent groups.

    asked on January 29, 2015
  68. Physical Sicence

    1.0 gram of glass will rise 20.0°C when _____ calories of heat are applied.

    asked on June 20, 2012
  69. chemistry

    Al(NO3)3 + NH3 --> ?

    asked on February 24, 2012
  70. Chemistry

    A) Find [Zn^2+] and [Fe(CN)6 ^4-] in saturated solution of Zn2Fe(CN)6. B) Repeat the above question in 0.1 mM ZnSO4 saturated with Zn2Fe(CN)6.

    asked on October 4, 2008
  71. Calculus

    1. Find the volume formed by rotating the region enclosed by x=5y and x=y^3 with y¡Ý0 about the y-axis. 2. Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis y=18x-6x^2 , y=0 : about the

    asked on May 4, 2007
  72. Math

    The numbers 2,p and q are consecutive terms of a GP, and the numbers p,30 and q are consecutive terms of an AP. Find the possible values of p and q

    asked on March 24, 2019
  73. Geometry

    Find the values of m and n. (1 point) A. m = 60, n = 12 B. m = 50, n = 20 C. m = 50, n = 16 D. m = 60, n = 24 Thx!

    asked on September 4, 2018
  74. physics

    For no apparent reason, a poodle is running counter-clockwise at a constant speed of 5.40 m/s in a circle with radius 2.3 m. Let v_1 be the velocity vector at time t_1, and let v_2 be the velocity vector at time t_2. Consider change in v = v_2- v_1 and

    asked on November 28, 2011
  75. Physics

    An ice cube of mass M is placed at rest in on a circular track of radius R, as shown at right. The position of the ice cube along the track follows that of a circle, given by: x^2 + (R – y)^2 = R^2 . A)With respect to the bottom of the track, calculate

    asked on May 1, 2009
  76. Science

    "Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy." What can you conclude about heat energy? Most of the sun's energy is used to make heat

    asked on February 22, 2018
  77. Health care

    Write a 700- to 1,050-word paper on health care communication. Answer the following questions in your paper: • How does effective communication incorporate the basic elements of communication? • How do the basic elements of effective communication

    asked on June 24, 2015
  78. project management

    What are the things you would recommend for the team to manage project risks?

    asked on January 27, 2015
  79. physics

    A ball, of mass 0.13Kg, is held on the inside of a smooth hemispherical bowl at a height 0.25 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

    asked on November 22, 2011
  80. Engineering

    It is found that ozone reaction in water nearly follows first-order kinetics in ozone concentration decreases by 50% in 12 minutes (t1/2 = 12 min). A water supplier wants to inject ozone into a pipe bringing water to thee water treatment plant to

    asked on September 19, 2011
  81. History ~ Help

    "Question: What factors led to the rise of Fascism?" "I'm not here to cheat, I'm here for help, any ideas? Thank You!" Throughout the 20th Century, Fascist leaders came to power in various countries, including Germany, Italy, Soviet Union, Japan, and

    asked on June 10, 2016
  82. chemistry

    what [I-]should be maintained in KI(aq) to produce a solubility of 1.3*10^-5 mol PbI2/L when PbI2 is added?

    asked on March 5, 2009
  83. Vocabulary

    Which is the closest synonym for the word aficionado? A. Fancier B. Spinster C. Financier D. Scavenger I think is b or d

    asked on February 21, 2018
  84. physis

    Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 µC charge, while the other (S2) has −7.7 µC charge. a)What

    asked on January 12, 2014
  85. Physics

    A Venturi flow meter is used to measure the the flow velocity of a water main. The water main has a diameter of 30.0 cm, and the constriction has a diameter of 10.0 cm. The two vertical pipes are open at the top, and the difference in water level between

    asked on December 12, 2013
  86. Chemistry questions

    1) Calculate the mass of NaHCO3 required to generate 50mL of CO2, at 1 atm. pressure and 25*C. Do I need to use PV=nRT? where for n it will be both my n's from C and O2 together? 2) Solubility of CO2 in water at 25* is 0.145g in 100mL. Assuming the

    asked on May 2, 2012
  87. math

    each of the 15 student council members of Blakemore Elementary School is responsable for telling exactly 2 other students about the upcoming school pep assembly. Each of those 2 is then responsable for telling 2 other students. It takes 15 minutes for each

    asked on February 5, 2012
  88. Precalculus

    Suppose 3 mg of a drug is injected into a person's bloodstream. As the drug is metabolized, the quantity diminishes at the continuous rate of 6 % per hour. Find a formula for Q(t), the quantity of the drug remaining in the body after t hours. Find

    asked on September 21, 2011
  89. math

    a restaurant offered pizza with 3 types of crust and 7 different toppings. how many different types of pizzas could be offered. 7 toppings on each i came up with 21 but not sure

    asked on April 27, 2011
  90. math

    1. Hot dogs come 10 to a package, and hot dog buns come 8 to a package. What is the smallest number of packages of each that Phillip could buy so that there are no leftover hot dogs or buns? Hot dogs 4 Hot dog buns 5 2. Hamburger patties come 6 to a

    asked on February 21, 2010
  91. organic chemistry

    Some biphenyl (C6H5-C6H5) is produced as a by-product in the synthesis of benzoic acid. Where does it come from? This question has to deal with the Grignard reaction. Can anyone help me with this please?

    asked on May 27, 2009
  92. Chemistry

    According to the quantum-mechanical model for the hydrogen atom, which of the following electron transitions would produce light with the longer wavelength: 2p --> 1s or 3p --> 1s I have the answer, which is 2p --> 1s, but can someone offer some help as to

    asked on March 16, 2009
  93. english

    I need to find rhetorical devices in this speech. -- Pearson’s address on the inauguration of the national flag of Canada: On September 5, 1945 an Order-in-Council was passed declaring the Red Ensign to be Canada's National Flag pending a decision of the

    asked on July 5, 2010
  94. Chemistry

    The amount of oxalic acid in a sample was determined by the reaction: 2Fe3+ + H2C2O4 + 2H2O----> 2Fe2+ + 2CO2 + 2H3O+. In an analysis, 10.62g of sample required 36.44 ml of 0.013 M Fe3+. Calculate the %w of oxalic acid in the sample.

    asked on September 1, 2008
  95. English

    What is one literary element of the poem "Not waving but drowning"? PLS HELP IMEDIATELY!!! I only need one literary element because I can not find one.

    asked on October 5, 2018
  96. University Genetics

    In humans pattern baldness is a sex-influenced trait, whose degree of expression is controlled by the sex of the individual, such that it is autosomal dominant in males while autosomal recessive in females. On the other hand, colour blindness and

    asked on February 8, 2018
  97. history

    The boundaries of the "West" have fluctuated over the past 3000 years. Why do you think that is the case? What accounts for those changes? Is the idea of the West objective or subjective? How is it decided if one country or another is part of the West?

    asked on April 5, 2017
  98. Dynamics

    A 5.1 oz baseball is hit from 2 ft above the ground. It has an initial velocity of 165 ft/s at an angle 40 degrees above horizontal. Find the Kinetic Energy of the ball at its maximum height. Work: At max height, the vertical velocity is zero. the

    asked on February 23, 2016
  99. anthropology

    I can't found this in the book. Please help me. Can an anthropologist be apolitical, a-contextual, a-cultural?

    asked on February 16, 2015
  100. anthropology

    Explain the different lineages, clans, moieties, and phratries

    asked on January 30, 2015


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