Christy

Popular questions and responses by Christy
  1. Math

    The bearing of x from y is 045°and the bearing of z from y is 145°,where x,y and z are three points in the plane.lf y is equidistant from x and z,find the bearing of z from x.

    asked on November 28, 2019
  2. physics

    In lab you submerge 100 g of 41 degree Celcius iron nails in 100 g of 25 degree Celcius water (the specific heat of iron is 0.12 cal/g degrees Celcius) A)Equate the heat gained by the water to the heat lost by the nails and find the final temperature of

    asked on April 3, 2012
  3. chemistry

    Copper reacts with nitric acid according to the following reaction: 3 Cu (s) + 8 HNO3 (aq) --> 3 Cu(NO3)2 (aq) + 2 NO (g) + 4 H2O (l) If an pre 1982 copper penny contains 3.10 grams of copper, what volume of 8.00 M nitric acid is required to exactly

    asked on November 7, 2010
  4. PHYSICS

    A 4 kg block is pushed along the ceiling with a constant applied force of 85 N that acts at an angle of 55 degrees with the horizontal. The block accelerates to the right at 6 m/s^2. determine the coefficient of kinetic friction between the block and the

    asked on February 24, 2007
  5. pre-calculus

    Express the edge length of a cube as a function of the cube's diagonal length d. Then express the surface area and volume of the cube as a function of the diagonal length.

    asked on January 12, 2014
  6. physics

    Find the mass of 0 degree C ice that 15 g of 100 degree Csteam will completely melt.

    asked on April 3, 2012
  7. Physical Science

    Aluminum has a density of 2.70 g/cm^3. What is the mass of a piece of aluminum that has a volume of 100.0cm^3? How would I figure this out? Thanks so much. :)

    asked on October 5, 2009
  8. Trig

    Use sum and difference identitites to find the exact value of co 15 degrees

    asked on May 8, 2013
  9. Chemistry

    Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction:H3PO4 + Mg(OH)2 -----> Mg3(PO4)2 + H2O.Balance the equation, then enter the coefficients

    asked on May 30, 2011
  10. physics

    An object starts from rest and accelerates at a rate of 2.50 m/s/s for 7.00 seconds. The velocity at the end of the 7.00 seconds is...

    asked on May 22, 2010
  11. chemistry

    How do you calculate the % empty sapce in 100mL of air. Using Avogadro's number(6.02x10^23) and the average volume of O2 and N2(3.8x10^-24 cm3/molecule). I think you can use the ideal gas law but am not really sure how to do it. I also have a similar

    asked on February 4, 2009
  12. English

    The Awakening questions 1. What role or purpose does love have in this book? 2. How does Kate Chopin use other characters, both male and female, in The Awakening in order to illustrate Edna Pontellier’s desires and social limitations? Choose at least

    asked on July 31, 2019
  13. psychology

    51. Given the changes in sex-offender laws, the emphasis of concern appears to be swinging toward: A) protecting children. B) sympathizing with sex offenders. C) white Americans. D) states' rights

    asked on December 15, 2014
  14. horizon

    What part of speech is the italicized word in the sentence below? What part of speech is the italicized word in the sentence below? Four score and seven years ago, our forefathers brought forth UPON this continent a new nation conceived in liberty and

    asked on June 3, 2013
  15. physics

    Two point charges are separated by 6.4 cm. The attractive force between them is 10 N. Suppose that the charges attracting each other have equal magnitude. Rearrange Coulomb's law and find the magnitude of each charge

    asked on April 17, 2012
  16. physics

    Radioactive decay of granite and other rocks in Earth's interior provides sufficient energy to keep the interior molten, to heat lava, and to provide warmth to natural hot springs. This is due to the average release of about 0.03 J per kilogram each

    asked on April 1, 2012
  17. calculus

    Determine which consecutive integers the real zeros of the function are located. f(x) = 4x^4 - 16x^3 - 25x^2 + 196x -146 Is there an easier way to this besides trial and error synthetic division? Also, how do I approximate the real zeros?

    asked on August 12, 2010
  18. Math

    The surface areas of two similar solids are 416yd ^2 and 1,354yd ^2. The volume of the larger solid is 2,976 yd^3. What is the volume of the smaller solid? 2,976 yd ^3 2,619 yd ^3 914 yd ^3 507 yd ^2

    asked on May 25, 2018
  19. psychology

    Dr. Comer points out risks of adolescence, such as alcoholism, drug abuse, and teen pregnancy

    asked on December 15, 2014
  20. physics

    At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m^2, averaged over a 24-hour day.If the average power requirement in your home is 2.8 kW and you can convert solar power to electric power with 8.0 % efficiency, how

    asked on April 3, 2012
  21. Statistics

    Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). Bellevue Hospital in New York City uses 100.6 °F as the

    asked on July 15, 2010
  22. Physics

    Two projectiles are launched from ground level at the same angle above the horizontal, and both return to ground level. Projectile A has a launch speed that is twice that of projectile B. (Sketch trajectories of projectiles). Assuming that air resistance

    asked on May 24, 2010
  23. math

    The following scores on the midterm exam in Chemistry 102 were recorded, 93 81 59 69 82 73 61 77 95 84 88 71 86 97 63 72 89 80 60 98 91 62 78 83 76 81 94 66 83 96 find the interquartile range. I do not understand this question.

    asked on January 17, 2010
  24. Chemistry

    An industrial raw materials as the following composition by mass : iron = 28.1% chlorine = 35.7% and water of crystalization = 36.2%. Calculate the formula for the material given that Hydrogen is 1, oxygen is 16, chlorine is 35.5 and iron is 56.

    asked on January 12, 2019
  25. science

    Two copper globes are floating in space with a charge of -10 and charge of +16. They come together then go back apart. What are the resulting charges

    asked on March 23, 2017
  26. physics

    four point charges on corners of a square.. top left -1, top right +2, bottom left -2, bottom right -1 ... object in middle is -1 ... which direction will that object move? up, down, left, or right (no angles)

    asked on March 23, 2017
  27. Math

    You food costs are $1700. Your total food sales are $8500. What percent of your food sales do the food costs represent?

    asked on January 27, 2016
  28. Math

    Calculate 56% of 880 kg?

    asked on January 27, 2016
  29. Math

    The chef has 300 pounds of strip sheep. The trim loss on the strip sheep is 40% and the cooking loss is 60% of the trimmed weight. How many pounds of trimmed cooked strip sheep will the chef have left to serve to his customers?

    asked on January 27, 2016
  30. Math

    A serving of ice cream contains 5000 calories. 200 calories come from fat. What percent of the total calories come from fat?

    asked on January 27, 2016
  31. psychology

    Which of the following is the MOST accurate conclusion one can draw about the mental health field? A) Mental health professionals are gaining respect in society. B) What mental health professionals know and can do outweighs what they do not know and cannot

    asked on December 15, 2014
  32. psychology

    Dr. Comer points out risks of adolescence, such as alcoholism, drug abuse, and teen pregnancy A) are more severe in lower socioeconomic groups B) are virtually nonexistent in middle-income children C) exist for all children, regardless of income level D)

    asked on December 15, 2014
  33. Physics

    Racing on a flat track, a car going 32 m/s rounds a curve 56 m in radius. What is the force of friction needed for the car to round the curve without slipping?

    asked on November 4, 2012
  34. physics

    Two pellets, each with a charge of 0.80 microcoulomb (8.0×10−7 C), are located 4.0 cm (4.0×10−2 m) apart. Find the electric force between them, which I solved for 3.6 N. I am stuck on the next part: What would be the mass of an object that would

    asked on April 17, 2012
  35. physics

    last one before I got to go to work Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.

    asked on April 16, 2012
  36. physics

    The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's

    asked on April 16, 2012
  37. physics

    An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. Is this roation or all of

    asked on April 16, 2012
  38. physics

    Which of these is the same in identical branches of a parallel circuit? A) All of these.B) Voltage.C) Current.D) None of theseE) Resistance. again my textbook says that voltage is the one that the paths are the same,is it all of these?

    asked on April 14, 2012
  39. physics

    Electric current is a flow of electric charge that moves due to an electric pressure is called what?. A) wattage.B) voltage.C) All of these to some degree.D) None of these.E) amperage. I chose ampere, this is what my textbook tells me and I got it wrong

    asked on April 14, 2012
  40. physics

    A 40g chunk of 90 degree C iron is dropped into a cavity in a very large block of ice at 0 degree C.Find what mass of ice will melt. (The specific heat capacity of iron is 0.11 cal/g degree C)

    asked on April 3, 2012
  41. physics

    The specific heat capacity of ice is about 0.5 cal/g degree C A)Supposing that it remains at that value all the way to absolute zero, calculate the number of calories it would take to change a 0.50g ice cube at absolute zero (-273 degree C}) to 0.50 g of

    asked on April 3, 2012
  42. physics

    Water with a mass of 0.500 kg at 15.0 degree C is mixed with 0.800 kg of water at 35.0 degree C. What is the final temperature T_f of the mixture?

    asked on April 3, 2012
  43. physics

    In lab, Will burns a 0.6 g peanut beneath 48 g of water, which increases in temperature from 22 degree C to 55 degree C. The amount of heat absorbed by the water can be found with the equation Q =cm \Delta T, where Q is the amount of heat, c the specific

    asked on April 3, 2012
  44. physics

    On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total weight of the balloon, including its load and the hot air in it, is 24000 N. Find the weight of the displaced air. !!I got

    asked on April 3, 2012
  45. physics

    A mountain-climber friend with a mass of 82 kg ponders the idea of attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be. Hearing of your physics

    asked on April 1, 2012
  46. math

    How can you tell if a number is rational or irrational? a) 3.215 (there is a line drawn over the 15) b.) square root 10 c) 0.143639854024 d)4.312 can you please explain what i need to look at to tell which is which?

    asked on January 20, 2012
  47. Geometry

    How many pieces of square floor tile, 1 foot on a side, would you have to buy to tile a floor that is 11 feet 6 inches by 8 feet?

    asked on November 14, 2011
  48. english

    I have to write a short paper on Shakespeare Twelfth Night-Act 5 scene 1 lines 248-262. But what we have to do is to translate those lines into a different "lingo" dialect but I don't even know how to get started. Can someone please help?

    asked on November 4, 2011
  49. math

    Identify the following amounts. 1. "Decidollar" 2. "Centidollar" 3. "Dekadollar 4. "kilodollar"

    asked on October 15, 2011
  50. reading

    In this passage I need to find the main idea and 3 supporting details. You have probably gone on a merry-go-around. Theres one at most theme and carnivals. You find a painted horse or other animal. You climb up on its back. Most of the animals are on the

    asked on April 6, 2011
  51. math

    There are a total of 107 foreign language students in a high school where they offer only Spanish, French, and German. 42 take Spanish. 46 take French. 45 take German. 8 take Spanish and French but not German. 8 take Spanish and German but no French. 6

    asked on December 15, 2010
  52. Math check answer please

    Amy paid $60.12 for a pair of running shoes that were 15% off. What was the regular price. I am coming up with 69.14 (round to nearest cent)

    asked on July 8, 2010
  53. Math check answer

    Two cards are drawn without replacement from an ordinary deck of 52 cards. What is the probability that the second card is a spade if the first card was not a spade ? 13/51 is that correct, do I need to reduce this number?

    asked on January 17, 2010
  54. Math156

    As a source the reporter uses a graph that states the average number of firearms per owner is 4.5. If the reporter created a headline that every person in the united states owns more than 2 firearms. Should the editor accept the headline ? I am thinking

    asked on September 14, 2009
  55. college chem. please help!!

    Calculate the % empty space in 1 mole of water at 25 degree C (d=0.9971g/ml). The volume of a water molecule can be taken as the sum of the volumes of the 2 hydrogen molecules and the oxygen atom. Use the single bonded covalent radii of 37pm for hydrogen

    asked on February 3, 2009
  56. college chemistry

    Calculate the % empty space in 1 mole of water at 25 degree C (d=0.9971g/ml). The volume of a water molecule can be taken as the sum of the volumes of the 2 hydrogen molecules and the oxygen atom. Use the single bonded covalent radii of 37pm for hydrogen

    asked on February 3, 2009
  57. Chemistry 1

    What is the chemical equation, name, and formula for the follwing? "When strongly heated, magnesium sulfide formed a yellow crystalline deposit on the walls of a sealed reaction vessel. Metallic deposits were found on the bottom of the container"

    asked on April 29, 2008
  58. english

    Hello - I am not sure you can help me ...I have to write an essay which I did for an english class which I already did, but I was wondering if you know of any free websites that can proof read my work? Just thought I would ask :)

    asked on January 16, 2008
  59. Science

    Using the law of conservation of matter, explain why there is no “away” when dealing with the issue of pollution. Any chemical reaction yields a product mass equal to the reactant mass.

    asked on February 9, 2007
  60. Science

    Distinguish between high-quality energy and low-quality energy, and give an example of each. Relate these terms to energy efficiency. Frankly, these terms could mean anything. In my electrical engineering career, high quality energy was a high thermal

    asked on February 9, 2007
  61. Music

    What musical form preceded the sonata-allegro form, and is the sonata-allegro form still being used today? Sup' Christy, I beleive the form that preceed the sonata-allegro form would be the "minuet and trio" form. Symphonies are where you can find the s-a

    asked on October 16, 2006
  62. Algebra

    Which kind of function best models the data in the table? Use differences or ratios. X = 0, y = 1.7 x = 1, y = 6.8 x = 2, y = 27.2 x = 3, y = 108.8 x = 4, y = 435.2 Can you please help me with this? I do not understand this unit as well as the other ones.

    asked on April 28, 2020
  63. math

    How much codeine is needed for the pharmacy technician to prepare 120ML of a cough syrup with a codeine concentration of 15MG/ ML?

    asked on February 18, 2020
  64. math

    A KCL Elixir contains 10MEQ/15ML. The daily dose is 30 MEQ. How many ML's total should the pharmacy technician prepare for a 30 day supply?

    asked on February 18, 2020
  65. chemistry

    A 25 g gold nugget with an initial temperature of 60 °C is dropped into an insulated cup containing 100 ml of water initially at a temperature of 5°C. What is the final temperature after thermal equilibrium is established? Refer to Table 3.4 of the text

    asked on February 26, 2018
  66. History

    How was the Iroquois league able to survive English and French colonization while the Aztec empire was not able to survive Spanish colonization

    asked on January 30, 2018
  67. CHM

    Calculate the heat absorbed by 125 g of water (SH = 1.00 cal/g°C) when the temperature rises from 21.0°C to 35.0°C.

    asked on January 25, 2018
  68. Math

    Mary spent 3/7 of her time playing, 2/3 reading. What fraction of her time is left?

    asked on January 14, 2018
  69. Pre algebra

    Can someone show me the steps to work this problem? X/4+1=-5

    asked on December 1, 2017
  70. french

    complete each sentence with appropriate expressions to make it correct and meaningful. 1. Ces enfants n'aiment pas ............... au village. 2. Led infirmiers de cet hopital ........... 3. Nous n'etudians ............... bibliotheque. 4. Oulest-ce que

    asked on February 15, 2017
  71. Chemistry

    If you have a properly adjusted hot flame, which is pale blue with three distinct comes, what is observed if the GAS CONTROL valve is slightly closed versus what's observed if the AIR CONTROL valve is slightly closed? Please Explain.

    asked on June 12, 2016
  72. Math

    How many 1/8 liter glasses of juice can you pour from a 1/2 liter bottle of juice?

    asked on March 2, 2016
  73. physics

    A copper of mass 400g is heated until it's temperature becomes 250degree celcius. It is dropped into water weighing 200g at 50 degree celcius.calculate the mass of water vapour produced.

    asked on February 24, 2016
  74. Math

    Out of a group of 60 students, 14 students walk to school. What percent of the group of students walk to school.

    asked on January 28, 2016
  75. Math

    Kevin found that 15% of the 40 students in his history class said that history was their favorite subject. How many students like history the best?

    asked on January 28, 2016
  76. Math

    Find each unit rate Julio walks 3 1/2miles in 1 1/4hours

    asked on January 4, 2016
  77. Chemistry

    Explain the laboratory preparation of one Litre of 1.3M formic acid buffer of pH 3.9 from solid sodium formate (molecular weight =68) and formic acid liquid 30% pure (Density of formic acid = 1.029g/ml, pKa = 3.75)

    asked on September 17, 2015
  78. Physics

    A startled armadillo leaps upward, rising 0.644 m in 0.170 s. a. What is its initial speed? b. What is its speed at this height? c. How much higher does it go? For a. 0 is not the answer and neither is 3.79 m/s (product of .644m*.170s)

    asked on August 30, 2015
  79. Chem

    a gas has a volumn of 36.0 L and a pressure of 750 torr when the temperature is 10 degrees celsius. what is the pressure if the volume changes to 78 degrees celsius if the amount of gas stays the same?

    asked on August 24, 2015
  80. math

    Jo Lee wants to hang three 3-inch by 5-inch prints on her wall. She wants to line them up vertically with an inch between each print. What is the minimum wall space that Jo Lee must have? Please explain!!!!

    asked on August 20, 2015
  81. Math

    At the beginning of the summer Molly decided to add a little money into her savings account every week. After seven weeks her account had $175. At the end of 15 weeks her account had $375. Assumed that she put the same amount of money into her savings

    asked on August 19, 2015
  82. physics

    solid gold statue with mass of 7.55kg, weight of 74.0N, and disperses 680 cubic meters of water when immersed. i need to find the density. but im unsure how to find the volume first to put it into the formula?

    asked on May 21, 2015
  83. math

    The scale on a map i 1cm to 4km What does 4cm on the map represent ?

    asked on January 28, 2015
  84. Math.

    T -shirts for first prize winners in the games cost $23.40. This was $8.77 less than their cost one year ago. What was the cost of the T-shirts one year ago?

    asked on September 21, 2014
  85. SCI207

    Net- zero refers to a building or installation that produces less energy less than consumes, considered to be energy reliant. True or false

    asked on February 9, 2014
  86. math

    number N of state and federal inmates in millions during year x where x >=2002 can be approximated by the following formula N=0.04x-79.02. determine the year in which there were 1.1 million inmates

    asked on May 1, 2013
  87. Math

    The number of 5th grade students who volunteered to help clean up the park this was 5 less than twice as many last year If 39 5th graders volunteered to help clean up the park this year how many volunteered last year

    asked on January 29, 2013
  88. geometry

    Pqrs -jklm with a scale factor of 4:3qr-8cm what is the value of kl

    asked on December 6, 2012
  89. penketh high

    Laughing Gas, N2O, is made by the careful decomposition of ammonium nitrate NH4NO3 (s) = N20 (g) + 2H20 (g) How many grams of N2O can you obtain? How many dm3 of stream would also be produced?

    asked on November 18, 2012
  90. Math

    Reasonables: I am between 24 and 34 what number am I

    asked on October 31, 2012
  91. psychlogy

    what might be the advantages of using the archival methods?

    asked on October 24, 2012
  92. Math

    It is greater than 43 and less than 52 if you add the digits the sum 8 right the number word

    asked on September 27, 2012
  93. Math

    It is greater than 43 and less than 52 if you add the digits the sum is 8 write the number word

    asked on September 27, 2012
  94. Algorithms

    Help Please: I need some help and guidance to solving this problem Week 4 CheckPoint – Repetition and Decision Control Structures In one of the week 3 discussion questions we discussed the algorithm that would be required to make a peanut butter

    asked on September 26, 2012
  95. Psychology And Your Life

    I am trying to construct a sentence using Maslow's theory on Physiological Needs. It can be personal or hypothetical.

    asked on June 23, 2012
  96. vulindlela

    How smoking is a human factor that may cause ill health

    asked on May 22, 2012
  97. physics

    An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. Is this roation or all of

    asked on April 15, 2012
  98. physics

    last one for now..this is nowhere in my text !! Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.

    asked on April 15, 2012
  99. physics

    last one for now..this is nowhere in my text or when I google it!! Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.

    asked on April 14, 2012
  100. physics

    An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. I say it is roation or all

    asked on April 14, 2012

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