Kara

Popular questions and responses by Kara
  1. algebra

    A plane that carries mail makes a round trip each day from Chicago to New York. It makes 3 intermediate stops on the way to New York and 1 intermediate stop on the way back to Chicago. Suppose you make a graph of the altitude of the plane for one day, with

    asked on November 28, 2010
  2. math:order of operation

    TWO PART Ellen is playing a video game in which she captures butterflies. There are 3 butterflies onscreen, but the number of butterflies doubles every minute. After 4 minutes, she was able to capture 7 of the butterflies. A)LOOK FOR A PATTERN. Write an

    asked on February 8, 2015
  3. algebra

    A rope is cut into three and one-third is used. Then one-fourth of the remaining rope is cut off and used. The piece left is 6 meters long. How many meters long was the rope originally?

    asked on May 29, 2017
  4. Science

    As early as 1938, the use of NaOH was suggested as a means of removing CO2 from the cabin of a spacecraft according to the following reaction : NaOH+CO2 -> Na2CO3 + H2O. If the average human body discharges 925. 0 g of CO2 per day how many moles of NaOH

    asked on February 13, 2010
  5. Physics

    A 22 cm diameter bowling ball has a terminal speed of 85 m/s. What is the ball's mass?

    asked on June 11, 2010
  6. physics

    A boat takes 3hr to travel 30 km down a river, then 5hr to return. How fast is the river flowing?

    asked on June 7, 2010
  7. social studies

    summarize the reasons for writing the Declaration of Independence. Please help

    asked on October 10, 2016
  8. Pre Cal

    An airplane leaves an airport and flies due west 150 miles and then 230 miles in the direction S 39.67 degrees W. How far is the plane from the airport at this time to the nearest mile.

    asked on April 9, 2012
  9. Chemistry

    Howard Wolowitz is developing a radiation detector for the Intemational space Station. He uses a thin film composed of a metal alloy that has a threshold frequency of 5.5x10^15 Hz. When radiation is shone on the thin film, the fastest electron emitted has

    asked on June 15, 2017
  10. Physics

    The ultrasonic transducer used in medical ultrasound imaging device is a very thin disk m = .10g driven back and forth in SHM at 1.0 MHz by an electromagnetic coil. a.) The maximum restoring force is 40,000 N. What is the maximum oscillation amplitude that

    asked on July 7, 2010
  11. math/2nd grade

    One box holds 16 crayons. Another box holds 24 crayons. Write a sentence using words that compare the crayons in the two boxes. (not a number sentence 24>16)

    asked on October 13, 2010
  12. Science

    A liquid solution of formaldehyde is 37% pure. This solution has a specific gravity of 1.037. The molecular weight of formaldehyde is 30.0. To 1.00 ml of this impure stock solution is added quantity sufficient total the total volume to 500 ml. If 1.00 ml

    asked on March 20, 2015
  13. physics

    A 750g block is attached to a vertical spring whose stiffness constant is 1N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? How long does it take the block to reach the lowest

    asked on February 13, 2017
  14. statistics

    Suppose x is a uniform random variable with c=10 and d=60. Find the probability that a randomly selected observation exceeds 30.

    asked on August 6, 2014
  15. CHEM!

    A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1MHz=10^6Hz. Calculate the broadcast wavelength of the radio station 98.30 FM.

    asked on November 2, 2008
  16. Language Arts

    I need to write to compare and contrast geology and etymology. How do I do that?

    asked on September 24, 2015
  17. Math

    The corners of a square lie on a circle of Diameter D = 0.35m. Each side of the square has a length L. Find L. - I'm not quite sure how to solve this problem

    asked on September 3, 2017
  18. Chem!

    How much energy does the electron have initially in the n=4 excited state? Enter your answer numerically in joules.

    asked on November 2, 2008
  19. Spanish

    I need help understanding how to ask/answer questions using the word 'Que'. If the question is ?Que' estudias tu'? is the correct answer: 'Yo estudio ___' and then whatever you're studying or could I simply answer 'Estudio ____' Also, in these questions,

    asked on May 5, 2009
  20. Physics

    Two archers shoot arrows in the same direction from the same place with the same initial speeds, but at different angles. One shoots at 45.0degrees above the horizontal, while the other shoots at 60.0 degrees.If the arrow launched at 45.0 lands 225 from

    asked on October 15, 2010
  21. Science

    If 2.50 mol of copper and 5.50 mol of silver nitrate are available to react by a single replacement:Cu + 2AgNO3 -> Cu(NO3)2 + 2Ag What is the amount in moles of each product formed?

    asked on February 13, 2010
  22. CHEM

    Calculate the density of oxygen, , under each of the following conditions: STP 1.00atm and 25.0 degrees celsius Express your answers numerically in grams per liter. Enter the density at STP first and separate your answers by a comma.

    asked on October 24, 2008
  23. Physics

    A physics book slides off a horizontal tabletop with a speed of 1.10m/s . It strikes the floor in 0.350s . Ignore air resistance. The height of the tabletop above th floor is .600m.The horizontal distance from the edge of the table to the point where the

    asked on October 15, 2010
  24. physics

    A phonograph record has an initial angular speed of 37 rev/min. The record slows to 10rev/min in 1.3 s. What is the record’s average angular acceleration during this time interval

    asked on February 27, 2011
  25. ASU

    How much MnO2(s) should be added to excess HCl(aq) to obtain 215 mL of Cl2(g) at 25 °C and 705 Torr?

    asked on October 15, 2013
  26. Chemistry

    List SOF2, SO2F-, and S2O3^-2 in order of increasing sulfur-to-oxygen bond length. How do u tell by just looking at the Lewis structures?

    asked on June 21, 2017
  27. Pre Cal

    Two tracking stations are on the equator 158 miles apart. A weather balloon is located on a bearing of N 41degrees E from the western station and on a bearing of N 21degrees E from the eastern station. How far is the balloon from the western station.

    asked on April 9, 2012
  28. CHEM

    To identify a diatomic gas (), a researcher carried out the following experiment: She weighed an empty 1.00- bulb, then filled it with the gas at 1.10 and 23.0 and weighed it again. The difference in mass was 1.27 . Identify the gas. Express your answer as

    asked on October 24, 2008
  29. Physics

    An electron with a horizontal speed of 4.0 * 10^6 m/s and no vertical component of velocity passes through two horizontal parallel plates. The magnitude of the electric field between the plates is 150 n/c the plates are 6.0 long A) calculate the vertical

    asked on January 10, 2013
  30. Chemistry

    Element x has the highest first electron affinity in its period, the ground state electron configuration of its common is: [Kr] 5s2 4d10 5p6 Element Y is the second largest element in its period; its valence electron are in orbital(s) that have n= 6. What

    asked on June 22, 2017
  31. Math

    Please check my responses! ASAP Consider the following data set: 3,4,6,7,9,9,11 If 5 were added to each of the values, how would that affect the median? My Answer: The median would change and increase. Consider the following data set: 3,4,6,7,9,9,11 If 5

    asked on September 13, 2016
  32. Math

    Determine whether the following statement makes sense or does not make sense, and explain your reasoning: By modeling attitudes of college freshmen from 1969 through 2006, I can make precise predictions about the attitudes of the freshman class of 2020. A)

    asked on October 4, 2011
  33. Chemistry

    The elements of which group in the periodic table release the most energy by gaining an electron? The elements of which group in the periodic table absorb the most energy when gaining an electron?

    asked on October 10, 2013
  34. math

    .) An architect is building a model of a tennis court for a new client. On the model, the court is 6 inches wide and 13 inches long. An official tennis court is 36 feet wide. What is the length of a tennis court? The architect decides to build a larger

    asked on December 13, 2011
  35. chemistry

    If I contain 3 moles of gas in a container with a volume of 60 liters and at temperature of 400 K, what is the pressure inside the container? Ideal Gas Law: PV=nRT I know I'm given the volume, temperature, and numbers of moles of gas, but how do I know

    asked on May 30, 2015
  36. Physics

    AM radio signals are broadcast at frequencies between 540 kHz and 1585 kHz (kilohertz) and travel 3.0 X 10^8 m/s. a. What is the range of the wavelengths for the signals? (from shortest to longest). b. FM frequencies range between 88MHz and 108 MHz

    asked on March 6, 2012
  37. physics

    An object has a height of 65 cm and is positioned 6.2 m in front of a spherical mirror. Its image distance is 1.9 m. Calculate the height (including its sign) of the image in centimeters.

    asked on June 3, 2012
  38. math

    Norman received $60 for working 8 hours. At this rate, how much would receive for working 35 hours?

    asked on January 31, 2012
  39. chemistry

    Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? increasing temperature increasing pressure decreasing surface area decreasing temperature

    asked on September 1, 2011
  40. Chemistry

    I have this question from an old exam for review. I tried the question but can't get the right answers. An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The

    asked on June 13, 2017
  41. math

    my math homework tells me to find the area of a circle using it's circumference. the circumference given was 6π yd. (6 pi yard). can someone explain to me how to find the area?

    asked on September 7, 2011
  42. physics

    The displacement of a block attached to a horizontal spring is given by x=0.5sin(7.8t−1.06)m What is the earliest time (t>0) at which x=0.16m? Find the acceleration when x=0.44m helppppppp

    asked on February 13, 2017
  43. Math

    Which of the following relations has this characteristic: The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3,

    asked on September 12, 2011
  44. History

    Describe how living conditions in cities changed during the Second Industrial Revolution. Your answer should include • a brief definition of the Second Industrial Revolution • a description of urban life and the problems created by industrialization

    asked on January 15, 2011
  45. Math

    What are the advantages and disadvantages of using least common denomonator when adding or subtracting fractions?

    asked on October 9, 2009
  46. PHYSICS

    A capacitor consists of a solid metal sphere of radius 3 cm placed at the center of a thin metal spherical shell of radius 12 cm. The space between is empty. What is the capacitance?

    asked on February 20, 2011
  47. Sciene

    How do living things get rid of cellular waste?

    asked on December 12, 2012
  48. Geometry

    Given: Segment CE bisects

    asked on November 8, 2012
  49. Chemistry

    I have this question from an old exam for review. I tried the question but can't get the right answers. An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The

    asked on June 13, 2017
  50. Math

    An asset is purchased for $50,000. It has an estimated useful life of eight years and salvage value of $6,000.if the asset is depreciated using the double-declining balance method,what are the depreciation expense and book value at the end of year two?

    asked on July 9, 2009
  51. Math

    An asset is purchased for$50,000.It has an estimated useful life of 12 years and a salvage value of $5,000. What is the annual depreciation of the asset using the straight-line method?

    asked on July 7, 2009
  52. Physics

    How does Rutherford's model of the atom account for the back-scattering of alpha particles directed at the gold foil?

    asked on April 10, 2008
  53. physics

    A block attached to a spring is displaced from equilibrium to the position x=+0.5m and released. The period is 2.1s . At what positions and times during the first complete cycle do the following conditions occur. a) |v|=0.5vmax, Where vmax is the maximum

    asked on February 13, 2017
  54. Algebra

    A dog trainer has 64 ft of fencing that will be used to create a rectangular work area for dogs. If the trainer wants to enclose an area of 192 ft2, what will be the dimensions of the work area?

    asked on November 12, 2012
  55. chemistry1

    how much heat is needed to melt 25.4 grams of iodine at its melting point?(Hfusion+61.7J/g)

    asked on April 6, 2011
  56. chemistry

    classify the compound as having ionic, polar covalent, or pure covalent bonds. Sb2P5 I know that a metal and nonmetal form an ionic bond, and two nonmetals form covalent bonds. The trouble I am having is that Sb is a metalliod and when it forms with a

    asked on December 9, 2008
  57. Math

    Use the sum or difference identity to find the exact value of tan 105 degree.

    asked on June 15, 2009
  58. Physics (Mechanics)

    A uniform plate of height H= 0.69 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y= 1.10x^2. The plate has a mass of 5.62 kg. Find the moment of inertia of the plate about the y-axis. Alright, I've done this so

    asked on March 21, 2008
  59. computers

    Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She would like an automated system but has a very small budget. Write a 4-5 page

    asked on January 10, 2012
  60. Physics

    The resistance of the wire in the windings of an electric starter motor for an automobile is 0.0190 Ohms. the motor is connected to a 12 V battery. What current will flow through the motor when it is stalled?

    asked on February 20, 2011
  61. Math

    The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 30 meters is 80 newtons per square centimeter. What pressure is exerted at 50 meters?

    asked on February 21, 2014
  62. Physics

    Which color light is the result of a greater energy transition, red or blue?

    asked on April 10, 2008
  63. physics

    A 300g particle oscillating in SHM travels 35cm between the two extreme points in its motion with an average speed of 30cm/s. Find: a) The angular frequency. b) The maximum force on the particle. b) The maximum speed.

    asked on February 13, 2017
  64. chemistry

    A light green powder is heated in a test tube. A gas is given off, while the solid becomes black. In which classification of matter does the green powder belong? Explain your reasoning.

    asked on September 27, 2010
  65. Business

    Envision you have served as business manager for over two years. you noticed that for the last 12 months the business has regularly had cash assets of$20,000 or more at the end of each month.you have found a 6-month certificate of deposit that pays 6%

    asked on September 23, 2009
  66. Chemistry

    A 9.00-L container holds a mixture of two gases at 43 °C. The partial pressures of gas A and gas B, respectively, are 0.257 atm and 0.579 atm. If 0.110 mol a third gas is added with no change in volume or temperature, what will the total pressure become?

    asked on October 15, 2013
  67. English

    I'm doing a pro/con argumentative essay. Is this topic sentence argumentative? The benefits of war and economics are better than global peace.

    asked on April 11, 2009
  68. History

    Pro-war and economics. What are some reasons for that besides since their is a war going on those people fighting are employed so more jobs become available (I don't have a reason why or know if that's right)

    asked on March 31, 2009
  69. physics

    The speed of sound in water is 1498 m/s. A sonar signal is sent straight down from a ship at a point just below the water surface, and 1.95 s later, the reflected signal is detected. How deep is the water?

    asked on March 6, 2012
  70. Physics

    In a skating stunt known as "crack-the-whip," a number of skaters hold hands and form a straight line. They try to skate so that the line rotates about the skater at one end, who acts as the pivot. The skater farthest out has a mass of 73.0 kg and is 7.70

    asked on March 15, 2011
  71. Physics

    An electron with a horizontal speed of 4.0 * 10^6 m/s an no vertical component of velocity passes through two horizontal plates. The magnitude of the electric field between the plates is 150 n/c. The

    asked on January 10, 2013
  72. math

    Two blocks sit on a horizontal surface. They are connected to each other by a massless cord. The block on the left has a mass of 5.1 kg and the block on the right has a mass of 3.0 kg. Another massless cord is attached to the block on the right and pulls

    asked on September 23, 2012
  73. physics

    The speed of sound in water is 1498 m/s. A sonar signal is sent straight down from a ship at a point just below the water surface, and 1.95 s later, the reflected signal is detected. How deep is the water?

    asked on March 6, 2012
  74. History Ms. Sue

    Is this right. Pro-War (Remember I'm against global peace) What else can I add about individuals wanting war because of the advancement of technolgy without using more examples of the technologys used. Thank You (All more worked is cited from those

    asked on April 1, 2009
  75. Math

    Joe wants to carpet a 12 foot by 18 foot rectangular living room and a square bedroom. One side length of the square bedroom is 12 feet. Carpet costs $3.50 per square foot. What percent of the total amount Joe will pay will be spent on carpeting the

    asked on February 10, 2015
  76. Medical Administrative Assistant

    I need help adding some stuff to this exam please help Exam 028005 It has come to my attention after a conversation with a DMD Medical Supplies representative that some of our work for them has been subpar. Knowing we are a customer driven company I did

    asked on December 18, 2014
  77. chemistry

    Potassium cyanide (KCN) reacts with acids to produce the poisonous hydrogen cyanide gas, HCN, according to the reaction below: KCN(aq) + HCl(aq) = HCN(g) + KCl(aq) If a sample of 0.653 g of KCN is placed in an excess of HCl, how much HCN, in grams, is

    asked on October 3, 2011
  78. CHEM

    To identify a diatomic gas (), a researcher carried out the following experiment: She weighed an empty 1.00- bulb, then filled it with the gas at 1.10 and 23.0 and weighed it again. The difference in mass was 1.27 . Identify the gas.

    asked on October 24, 2008
  79. physics

    Your friend weighs 145 lb. What is her mass in kilograms if she went to the moon where the acceleration of gravity is 1/6 that on earth? i know that her weight in newtons is 652.5, and that her mass in kilograms is 65.25, and that her weight in newtons if

    asked on September 23, 2012
  80. Chemistry

    Is the NO3- single bond length shorter than NO2H single bond length? Based on Lewis structure of it.

    asked on June 16, 2017
  81. math

    can you fill in the missing square with the number that logically belongs there? 2 2 2 2 2 6 10 14 2 10 26 50 2 14 50

    asked on May 20, 2009
  82. Physics

    When an electron makes a transition from its first quantum level to ground level, the energy difference is carried by the emitted photon. In comparison, how much energy is needed to return an electron at ground level to the first quantumlevel?

    asked on April 10, 2008
  83. History

    Can you please explain this to me the best that you can? GP would create tolerance because everyone would be in each other's space due to overpopulation. What is a good follow up sentence to put after that.

    asked on March 29, 2009
  84. Probability

    You throw a beanbag at a wall with 7 colored squares, each with an area of 1/4^2. If you hit a square, you win a prize. What is the probability of winning a prize? You need more information. For starters: 1) what is the total area of the wall? 2) Are

    asked on December 5, 2006
  85. Chemistry

    The photoelectric effect is a concern in space, where parts of a spacecraft exposed to the sunlight will develop a net positive charge, which can interfere with or damage sensitive cir The panels that cover the exterior of the Space Shuttle are composed of

    asked on June 22, 2017
  86. Computer science

    As a member of the Information Security team at a small college, you have been made the project manager to install an access control system (ACS) in a dormitory. The ACS will automatically unlock the dormitory doors via an electronic proximity reader and

    asked on January 26, 2012
  87. Chemistry

    I am having figuring out the Lewis Dot Structure of ICl2-? Can anyone help???

    asked on July 17, 2010
  88. English

    Does this sound argumentative enough and is worded correctly. ( I know that this isn't true but in my case for this paper this is what we have to do) Fighting war for freedom is more efficient than having global peace and freedom. OR fighting war for

    asked on April 15, 2009
  89. English-Word Choice

    What is another way to say waging war? I used the theasurus to find a word that meant the same as waging but the search results came back as nothing was found.

    asked on April 14, 2009
  90. chemistry

    Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? increasing temperature increasing pressure decreasing surface area decreasing temperature

    asked on September 1, 2011
  91. History Ms. Sue

    What else can I add for freedom of want. I need to add a few more sentences any ideas. So far I have talked about everyone would be able to live a good life with food, shelter, and expression (i expanded on that some). every individual would be at ease

    asked on April 16, 2009
  92. Biology

    Unikonta paraphyletic or monophyletic? Animalia paraphyletic or monophyletic?

    asked on March 5, 2017
  93. college

    the perimeter of a rectangle is twice the sum of its width and it length. the perimeter is 40meters and its lenght is 2 meters more than twice its width.

    asked on November 18, 2010
  94. algebra

    The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.

    asked on December 14, 2009
  95. Quick ?

    War the Worlds Solution is the title of my paper should there be an apostrophe in the word worlds? I think so but I just want to make sure I'm right.

    asked on April 30, 2009
  96. History Ms. Sue

    How is this a negative thing related to war and economics. most wars create zones of intense destruction of capital such as farms, factories, and cities. These effects severely depress economic output. ( I understand that bombs and other wartime activities

    asked on April 11, 2009
  97. History

    What would my topic sentence be for this paragraph that I have been working on? Because my points are overpopulation, economics, and religion. I have another ?. Pro-war and economics. I already expanded on the creation of more jobs due to the need of

    asked on March 31, 2009
  98. statistics

    A sign is posted in an elevator stating that the maximum number of people allowed is 25, and that the maximum weight capacity is 4000lbs. Suppose the distribution of the variable Weight (among the population using the elevator) is normal with mean 150lbs

    asked on February 7, 2016
  99. Pre Cal

    cos 75 deg

    asked on April 9, 2012
  100. History Ms. Sue

    This is from the website that you gave me about four freedoms and those being the pros of global peace. Can you please explain to me what this one means. The way that they explain it is kind of confusing for me to understand. I get bits of it. Freedom from

    asked on April 16, 2009

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