Most popular questions and responses by Christian
  1. math

    1. Which angles are adjacent angles? (1 point) ∠GBM and ∠FBC ∠CBX and ∠FBC ∠XBG and ∠FBC ∠MBY and ∠FBC 2. The measure of ∠3 is 101°. Find the measure of ∠1. (1 point) 101° 106° 74° 79° 3. Is line l parallel to line m? Explain.

    asked on February 3, 2014
  2. Physics

    A 75.0kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5m starting from the rest, its speed is 6.0m/s. Find the magnitude of the net force on the bobsled.

    asked on January 10, 2013
  3. Chemistry Help! (Rydberg Equation)

    a) According to the Rydberg equation, the line with the shortest wavelength in the emission spectrum of atomic hydrogen is predicted to lie at a wavelength (in nm) of _____ b) According to the Rydberg equation, the longest wavelength (in nm) in the series

    asked on October 5, 2014
  4. Math

    A family pass to the amusement park costs $54 Using the Distributive Property,write an expression that can be used to fine the cost in dollars of 8 family

    asked on September 15, 2016
  5. sociology

    In what way were Karl Marx and Charles Wright Mills alike in their thinking and understanding of society?

    asked on March 27, 2013
  6. physics

    A metal sphere is launched with an initial velocity of 1.5 m/s as it leaves the ramp. The end of the ramp is 1.2 m above the floor. Calculate the range of the sphere.

    asked on October 13, 2014
  7. physics

    A jet plane lands with a speed of 110 m/s and can decelerate uniformly at a maximum rate of 4.1 m/s2 as it comes to rest. Can this plane land at an airport where the runway is 0.80 km long? Answer this by calculating. Answer in units of km

    asked on September 22, 2011
  8. Physics

    A child sits on a rotating merry-go-round, 2.19 m from its center. If the speed of the child is 2.32 m/s, what is the minimum coefficient of static friction between the child and the merry-go-round that will prevent the child from slipping?

    asked on March 6, 2011
  9. Psychology-Opinions wanted

    Personality disorders are thought to originate during childhood but many health professionals are reluctant to diagnose children. Why is this?

    asked on May 1, 2008
  10. Physics

    A 2-kg brick is moving at a speed of 6 m/s. how large a force F is needed to stop the brick in a time of 7x10^-4 s?

    asked on December 9, 2015
  11. music

    A minor scale is usually said to create what type of mood?

    asked on October 17, 2018
  12. History

    Explain in your own words why you listed this particular cost as the “#1 Cost of the American Civil War.”

    asked on August 15, 2014
  13. Engineering Statistics

    "A study has shown that 20% of all college textbooks have a price of $90 or higher. It is known that the standard deviation of the prices of all college textbooks is $9.50. Suppose the prices of all college textbooks have a normal distribution. What is the

    asked on October 11, 2011
  14. math

    A cheetah traveling at 31 m/s chased its prey for 11 seconds. What distance did the cheetah travel during the chase??

    asked on February 20, 2018
  15. CHEM-102

    Ka for hypochlorous acid,HClO is 3.0x10^-8. Calculate the pH after 10.0, 20.0, 30.0, and 40.0mL of 0.100M NaOH have been added to 40.0mL of 0.100M HOCl.

    asked on March 27, 2011
  16. science

    how far will 350 jules raise a block weighing 7n

    asked on March 12, 2012
  17. Physics

    A rocket of mass 1000 kg containing a propellant gas of 3000kg is to be launched vertically. If the fuel is consumed at a rate of 60kgs-1, calculate the least velocity of the exhaust gasses if the rocket and content will just lift off the launching pad

    asked on October 1, 2017

    Which expression is equivalent to 32 ⋅ 3−5? fraction 1 over 3 to the power 3 fraction 1 over 3 to the power 7 fraction 1 over 3 to the power negative 3 fraction 1 over 3 to the power negative 7

    asked on October 7, 2015
  19. physics

    Which bear has the greater average velocity over the entire period? Which bear has the greater velocity at t = 8.0 min? Is the velocity of bear A always positive? Is the velocity of bear B ever negative?

    asked on February 10, 2010
  20. economics

    Is your consumer behavior influenced by advertising or the news? Discuss one or two examples of media that have influenced your desires or affected your consumer choices

    asked on March 26, 2013
  21. Physics

    A skier moves 100.0 m horizontally, and then travels another 35.0 m uphill at an angle of 35.0º above the horizontal. What is the skier's displacement from his starting point?

    asked on February 12, 2015
  22. chemistry

    calculate the amount of heat released when 50g of water at 100degrees hits the skin, condenses, cools the body to 37 degrees

    asked on September 21, 2010
  23. social studies

    In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change?  (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The

    asked on February 23, 2014
  24. History

    What were two intended outcomes of the Green Revolution and two unintended outcomes of the Green Revolution?

    asked on February 28, 2008
  25. Psychology

    Why is it that children of older parents( over 40) are better adjusted, have closer ties with their parents, and are more social when they enter school than children of young parents( under 40)? Using theis question perform the scientific method and write

    asked on September 26, 2007
  26. math

    The mass of a bag of sand was 2.95 kilograms when it was 2/3 full. When 1/6 of the sand was removed, the mass of the bag of sand became 2.325 kilograms. Find the mass of the empty bag in kilogrmas. Help!

    asked on October 18, 2011
  27. Finance

    Suppose that five years ago Cisco Systems sold a 15-year bond issue that had a $1,000 par value and a 7 percent coupon rate. Interest is paid semiannually. a. If the going interest rate has risen to 10 percent, at what price would the bonds be selling

    asked on September 27, 2012
  28. Chemistry

    Hydrogen iodine is a strong acid that is used in chemical synthesis to produce some common drugs as well as a source for iodine, I2. Data for the formation of hydrogen iodine was obtained as shown. The reaction was found to be first order with respect to

    asked on May 19, 2007
  29. Algebra

    Flying with wind, a plane flew 800 miles in 5 hrs. Flying against the wind, the plane flew the same distance in 8 hrs. Find the still air speed and wind speed.

    asked on November 7, 2011
  30. Economics

    Joe's burrito cart sits on a busy street corner. Customers line up to get Joe's hot fresh bean burritos filled with trimmings of their choice. In order to comply with regulations, Joe must keep his cart and utensils clean, advertise ingrediants on a

    asked on May 11, 2007
  31. Chemistry-102

    what is the ph solution obtained by mixing 25.00 ml of 0.250 ml HCl and 25.00ml of 0.125M NaOH

    asked on March 23, 2011
  32. math

    I am the greatest common factor of three numbers. Their sum is 36. The largest number is twice the smallest and the middle number is the mean of the other two. What are the three numbers? What number am I?

    asked on March 31, 2014
  33. Algebra

    Violet used 1 3/4 gallons of paint on her kitchen wall.She used 4 times as much paint for her living room and bedroom walls. How much paint did Violet use for the living bedroom walls?

    asked on January 17, 2017
  34. Chemistry

    What species is classified as an Arrhenius base?

    asked on February 25, 2012
  35. Psychology

    Illustrate the collective unconscious of your particular culture. What symbols and archetypes emerge? What value/ meanings does the symbols represent? How does collective unconsious infleunce individual behavior? Could someone please help me with this

    asked on September 12, 2007
  36. personal finance

    Which type of tax is calculated on a per-item basis?

    asked on January 28, 2015
  37. Psychology

    Why are twin studies valuable in behavioral genetics research? What does the research say about the effects of environment on IQ scores in poor homes versus affluent homes? What does this suggest?

    asked on November 3, 2007
  38. English

    I am trying to analyze the poem "Full Fathom Five" by William Shakespeare. When was the poem written? When I google the title "The Tempest" comes up. Is "Full Fathom Five" part of "The Tempest"?

    asked on December 28, 2007
  39. Spanish

    I need help conjugating the verb Pasar into prsent tense, imperfect tense, preterite, -ing, tu affirmative command, Ud. affirmative command, Uds. affirmative command, future, and conditional tense. I also need to conjugate Tener into present tense. I am

    asked on January 9, 2008
  40. Civics

    paragraph using the following words proprietary colony, royal colony, religious dissenters, puritans, and toleration.

    asked on September 18, 2016
  41. Physics (Help please)

    A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m.

    asked on April 8, 2014
  42. algebra

    There are (35)2 ⋅ 30 leaves on a tree. What is the total number of leaves on the tree? 33 37 310 325

    asked on October 7, 2015
  43. Chemistry

    Zinc sulfide and oxygen gas react to form oxide and sulfur dioxide. Determine the amount of ZnO that should be produced in a reaction between 46.5 g of ZnS and 13.3 g of oxygen. What is the mass of the xs reactant? Please show work

    asked on February 15, 2012
  44. math

    projectiles what is the formula? Question A firework company is designing fireworks so that they can explode above a certain height. the fireworks are fired from the ground at an initial velocity of 160 ft per sec, what is the range of times for the

    asked on December 11, 2010
  45. physics

    A box weighing 87 lb is being pulled with a rope that exerts a force of 60. lb at an angle of 15 degrees with the horizontal. if the coefficient of kinetic friction is .35, what is the kinetic friction?

    asked on August 24, 2017
  46. Algebra 2( it's a tough one!)

    Jose needs to enclose a rectangular section of his yard. The area is 35 sq. ft. and the perimeter is 27 sq. ft. Find the length and width of the section. let l be the length, and w be the width in feet. so 2l+2w=27 --->l+w=13.5 ----> w=13.5-l secondly

    asked on May 3, 2007
  47. Economics

    For abnormal goods, how will supply behave when price increases and when price decreases

    asked on February 28, 2019
  48. economics

    Give an example of a fairly major purchasing decision you've made in your lifetime. How did you justify the purchase? How did you prepare for it financially once you decided to make the purchase?

    asked on March 26, 2013
  49. Science

    In a hypothetical experiment, the blood flow between two dogs is joined and one dog is stressed so that its heart rate goes up rapidly. What will happen to the heart rate of the second dog? a) It will remain calm because the heart rate is determined

    asked on February 4, 2014
  50. CHEM

    How many grams of water and iron must react to produce 543 g of iron oxide, Fe3O4? 3Fe + 4H2O---> Fe3O4 + 4H2

    asked on August 3, 2009
  51. College Physics

    A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m.

    asked on April 10, 2014
  52. Chemistry

    What percent by mass does the water constitute in Na2SO4*10H2O? Determine the formula for the hydrate of cobalt (II) acetate from the following data. Mass of crucible and lid= 28.945g Mass of crucible, lid, and hydrate= 29.986g Mass of crucuble, lid, and

    asked on August 2, 2009
  53. Chemistry

    Give the enthalpy change and entropy change values shown below calculate the free energy change for this reaction at 25 degrees C using Gibbs free energy equation. How does this value compare to the free energy change using the standard free energy of

    asked on May 16, 2007
  54. Chemistry

    What is Delta H degrees for the gas-phase reaction below? CH4+ CL3 = CH3CL+ HCL Bond dissociation energies of CL-CL, C-CL, H-CL, and H-C are 243, 339, 431, and 414kj/mol respectively a)113kJ b)-113kJ c)263kJ d)-263kJ Can somebody teach me how to solve

    asked on July 23, 2010
  55. Algebra

    I am going to take an Accuplacer math placement test later this week. It is to determine what math course I need to take in college. The school would like me to place in statistics.This will be my second time taking the test. The first time I placed in

    asked on April 1, 2008
  56. Chemistry

    Hydrogen iodine is a strong acid that is used in chemical synthesis to produce some common drugs as well as a source for iodine, I2. Data for the formation of hydrogen iodine was obtained as shown. The reaction was found to be first order with respect to

    asked on May 20, 2007
  57. English

    How would a student justify inferring that “indigenous” means “originating in a particular region”?

    asked on June 7, 2019
  58. math

    You jogged 11 kilometers at an average speed of 10 kilometers per hour. How long did you jog? I need help please

    asked on February 20, 2018

    The amounts of e-waste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total e-waste generated over these two years in the region, expressed in scientific notation? 2.49 ⋅ 107 tons 2.49 ⋅ 1014 tons 24.9 ⋅

    asked on October 7, 2015
  60. Physics

    The electric potential inside a charged spherical conductor of radius R is given by V = kQ/R, and the potential outside is given by V = kQ/r. Using Er = -dV/dr, derive the electric field inside and outside this charge distribution.

    asked on February 15, 2013
  61. Chemistry

    Which of the following would involve the largest production of heat per mole? a)the burning of gasoline b)the evaporation of water c)the fission of uranium d)the freezing of water e)the rusting of iron Is it C) Which of the following would involve the

    asked on July 23, 2010
  62. Psychology

    I am doing a project where I have to illustrate the collective unconscious of my culture. The question is what symbols and archetypes are in your culture. I am using the archetypes the mother, and the hero. My problem is I don't know how this collective

    asked on September 13, 2007
  63. English

    what does the Soothsayer tell Caesar? of which literary technique in this an example?

    asked on November 8, 2018
  64. Psychology

    I need to find at least two instances of abnormal behavior but everytime I do an internet search the results are examples of term papers not instances of abnormal behavior. I ahve to write two paragraphs explaining the deviance. Can anyone help me?

    asked on April 23, 2008
  65. Chemistry

    4.13 grams of magnesium chloride were recovered after the chemical reaction between magnesium and chlorine gas occurred. If 7.10 grams of magnesium chloride was suppose to be produced, what is the percent yield of magnesium chloride?

    asked on April 22, 2016
  66. math

    a fencing company was asked to enclose three gardens with wire fences: a rectangular garden with a length of 270 meters and a width of 1123.62 meters; a square garden with a side length of 657.955 meters; and a rectangular garden with a width of 35 meters

    asked on September 20, 2012
  67. science

    Are Saturn rings made of ice

    asked on September 22, 2010
  68. anatomy

    What differences can be seen between compact bone and spongy bone by the naked eye?

    asked on October 13, 2009
  69. English

    Determine the rhythm and meter of each set. "Workers earn it. Spendthrifts burn it. Bankers lend it Women spend it. Forgers fake it. Taxes take it. Dying leave it. Heirs receive it. Thrifty save it. Misers crave it. Robbers seize it. Rich increase it.

    asked on October 22, 2007
  70. 3rd grade math

    explain how you can use a hundred chart to subtract 12 from 46

    asked on October 14, 2010
  71. "Brave New World"

    I am writing an essay after reading the first 3 chapters of "Brave New World" about how genetic engineering produced the society. What are the motives behind genetic engineering according to Huxley? Has genetic engineering "Improved" lives of the peopel in

    asked on April 28, 2008
  72. Trig

    Cicero has a population of 6200 people and is growing at a rate of 8% per year . Mattydale has a population of 8750 and is growing at a rate of 6% per year create and equation solve the problem and in how many years to the nearest year will Cicero have a

    asked on December 6, 2016
  73. chemistry

    3moles KI in 500 g of H2O equals what molality?

    asked on November 25, 2014
  74. Geography(Eighth Grade)

    How did Europeans feel about Columbus's first voyages to america? Were they happy because they found new land or?

    asked on October 3, 2012
  75. english

    What is the rhyme scheme? How can I find the rhyme scheme of a poem?

    asked on December 12, 2007
  76. chemistry Emergency TEST

    1.How many moles of sodium oxide are produced when3.9 moles of sodium combine with excess oxygen. 2. Sodium chloride decomposes into elemental sodium and elemental chlorine.How many grams of chlorine will be produced if 39.4 grams of sodium chloride

    asked on February 14, 2013
  77. Pre-Calculus

    Find all solutions of the equation and express them in the form a + bi. 36x^2 − 12x + 2 = 0

    asked on September 14, 2014
  78. trigonometry

    To the nearest degree what is the angle formed with the ground by a 32 ft ladder if it is leaning against a wall at a height of 28 ft?

    asked on May 8, 2014
  79. maths

    find the product of x and y if x,3/2,6/7,y are in geometric progression

    asked on October 18, 2017
  80. physics

    what is the correct equation for the reaction of HBr with Ca(OH)2-

    asked on December 15, 2008
  81. History- WWI

    What effect did the entry of the United States into WWI have on the war? Why?

    asked on November 6, 2007
  82. Psychology

    How do traumatic brain injuries occur. I don't mean like concussions or contusions though. I am trying to write a report on how brain injuries affect personality but i am not sure how a serious brain injury occurs.

    asked on October 28, 2007
  83. Algebra 2

    Solve this system by substitution: 2x-3y=12 x-4y=6 Slve this system by elimination: 8x+5y=22 6x+ 2y=13

    asked on October 19, 2007
  84. Psychology

    What are the strengths and weaknesses of Naturalistic observation, Case studies, and Longitudinal Studies?

    asked on October 4, 2007
  85. Physics

    Mathematically determine the resultant force if two forces A and B act on an object. Force A is 85N and is at an angle of 20• to the horizontal. Force B is 125N and is at an angle of 60• to the horizontal.

    asked on October 11, 2012
  86. Chemistry

    The Rydberg equation (1=Rni 2–Rnf 2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)?

    asked on April 12, 2010
  87. "1984"

    What is the primary theme of Part 3 in "1984"? My answer: The themes of "1984" are language as mind control, intimidation, manipulation, and knowledge of the past. My problem is how do I know which one of these themes is the primary theme and how do I make

    asked on April 16, 2008
  88. History

    Was the Marshall Plan part of The United States policy of containment? Did the Marshall Plan affect the Cold War?

    asked on January 28, 2008
  89. Algebra 2

    1. Write a polynomial in standard form that has solutions: 0, -2, 3 2. Write a trinomial that has a degree of 4 and a lead coefficient of -3 3. True of false: 3/x^2 is a polynomial expression

    asked on January 12, 2008
  90. English- Shakespeare

    Some people believe Shakespeare's plays were not really written by him. Soem people believe the real authors are anywhere from Francis Bacon to Queen Elizabeth while others support Edward de Vere. Who do you belive is the literary and historical

    asked on January 4, 2008
  91. Algebra2

    The area of a square garden in square feet is 49x^2-14x+1. Find the dimensions of the garden in terms of x. x^2=49x^2-14x+1 Then solve for x. 48x^2-14x + 1=0 (8x-1)(6x-1)=0 and solve for two values of x that are possible.

    asked on May 4, 2007
  92. Chemistry

    At saturation 1.5 x 10^-4 moles caF2 have dissolved in 1L of water. What is Ksp for CaF2 at this temperature? CaF2(s) ==> Ca^2+ + 2F^- Ksp = (Ca^2+)(F^-)^2 (Ca^2+) = 1.5 x 10^-4 mols/L (F^-) = 3.0 x 10^-4 mols/L. Plug into Ksp and solve. Post your work if

    asked on March 23, 2007
  93. Physics (Help Please)

    An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the

    asked on April 8, 2014
  94. physics 112

    what is meant by a change in temp of 1 degree celcius on the scale of a platinum resistance thermometer

    asked on January 27, 2013
  95. Pre-calculus

    So a computer virus has been created via Corporate e-mail. Let t=0 be the time of the first 100 infections, and at t=17 minutes the population of infected computers grows to 200. Assume the anti-virus companies arent able to identify the virus or slow its

    asked on May 11, 2011
  96. CHEM-102

    Calculate the pH of a solution prepared by mixing 10.00mL of 0.50M NaOH and 20.00mL of 0.50M benzoic acid solution. (Benzoic acid is monoprotic; its ionization constant is 6.7x10^-5).

    asked on March 27, 2011
  97. Algebra II

    1.Solve: x(x2 + 16) = 0 2.Solve: 2x3 + 6x2 – x – 3 = 0 3. Solve: 2x = x2

    asked on January 11, 2008
  98. algebra

    Which shows the expressions in the order they would appear on a number line from least to greatest? 17 over 9, square root of 6, square root of 15, square root of 30, 3 to the power of 3 3 to the power of 3, square root of 30, square root of 15, square

    asked on October 7, 2015
  99. Physics (Help Please)

    Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater

    asked on April 8, 2014
  100. Math (Ms. Sue Please Help)

    Determine whether the following statement makes sense or does not make sense, and explain your reasoning (modified from true/false format of text): If f(x) = 3x, then f^-1 (x) = 1/3x A) This makes sense because the inverse would divide by 3 to "undo" the

    asked on September 12, 2011


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