Aly

Most popular questions and responses by Aly
  1. spanish!!!

    which was not found in the ancient maya culture? pyramids hieroglyphics ball courts ** roof gardens Which is a yearly festival in the united states? National Salvadoran- american day pupusa festival ** salvadoran folkore week salvadoran new year

    asked on March 10, 2016
  2. physics

    The physics of electric field between two charges. What is the magnitude and direction of the electric field at a point midway between a -8.0 ìC charge and a +6.0 ìC charge? The -8.0 ìC charge is 4.0 cm to the left of the +6.0 ìC charge. If a charge of

    asked on April 28, 2011
  3. Chemistry

    A 1.0 mL volume of 0.010 M H2SO4 is added to a mixture of 6 drops of 0.010 M HIO3, 14 drops of deionized water, and 1 drop of starch solution. A color change in the reaction mixture occurred after 56 seconds. a. Assuming 20 drops per milliliter for all

    asked on February 2, 2016
  4. physics

    a) What is the magnitude of the electric field at a point midway between a −8.5μC and a +8.5μC charge 8.0cm apart? Assume no other charges are nearby. b) What is the direction of the electric field?

    asked on July 8, 2015
  5. Math

    Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric

    asked on November 8, 2010
  6. PRE CALC HELP PLEASE

    A plumber, electrician and painter were all hired to work on 3 different house. For Adam's house, a plumber worked a total of 35 hours, an electrician worked 42 hours and a painter needed 29 hrs to complete the job. the total cost of the three workers for

    asked on May 24, 2014
  7. chemistry

    Calculate the pH of a saturated solution of Sr(OH)2. The Ksp for Sr(OH)2 is 3.2x10^-4.

    asked on February 15, 2015
  8. English (Reunion by John Cheever)

    In John Cheever's story reunion, what do the restaurants symbolize. Why does Charlie call hi father daddy at the end of the story? Examine the first and last sentences of the story. What is common and why? How do you interpret the ending of the story? Does

    asked on November 30, 2014
  9. physics

    The physics of electric potential energy at one corner of a triangle. Two charges, q1 = +5.0 ìC and q2 = -2.0 ìC are 0.50 m apart. A third charge, q3 = +6.0 ìC is brought from infinity to a spot 0.50 m from both charges so that the three charges form an

    asked on April 28, 2011
  10. physics

    1. The physics of Mars and its two moons. Mars has two moons, Phobos and Deimos (Fear and Panic, the companions of Mars, the god of war). Deimos has a period of 30 h, 18 min and a mean distance from the centre of Mars of 2.3 x 104 km. If the period of

    asked on April 24, 2011
  11. Physics

    A boy throws a 4-kg pumpkin at 8m/s to a 40kg girl on roller skates, who catches it. At what speed does the girl then move backwards?

    asked on December 31, 2009
  12. chemistry

    One of the by-products of a reaction is 2-methyl-2-butene. A) Suggest a mechanistic pathway for the formation of this alkene. B) How is this by-product removed during the purification?

    asked on October 28, 2011
  13. physics

    A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s? point a= 30m point b= 0m point c= 25m point d= 12m 1. What is the total mechanical energy of the roller coaster at point A? 2. What is the speed of the roller coaster at point B?

    asked on April 24, 2011
  14. PreCalc PLEASE HELP

    Ms Farnum was hired for a new job at a salary of $62,500 and was promised a 5% raise each year. What would Ms.Farnum's salary be, to the nearest dollar, after working there for 6 years?

    asked on March 23, 2014
  15. Math

    Sarah was cutting fabric for a quilt. She cut a strip of fabric that was 19 1/8 inches long into 5 equal pieces. When she was finished cutting Sarah had a piece that was 2 1/4 inches long. How long was each piece that she cut for the quilt?

    asked on April 21, 2013
  16. physics

    The physics of orbital radius and orbital period of a planet. If a small planet were discovered whose orbital period was twice that of Earth, how many times farther from the sun would this planet be?

    asked on April 24, 2011
  17. Physics

    6m due south,10m due east and 5m due north. Find the distance traveled and the displacement of the vector

    asked on July 16, 2017
  18. la

    2. Based on the context clues, what is the meaning of the word catalpa in Line 27 of the poem? (The poem is Almost Summer Sky by Jacqueline Woodson) Line 27: No, upstate they got maple and catalpa and scotch pine, A a location upstate B a species of

    asked on March 6, 2016
  19. Physics

    1) what does the y intercept on a force vs acceleration graph represent? 2)what is the relationship of mass and acceleration?

    asked on October 30, 2013
  20. physics

    A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time tTO needed to take off?

    asked on September 18, 2015
  21. Math

    The elevation of the surface of the Dead Sea is -424.3 meters. In 2005, the height of Mt. Everest was 8,844.33 meters. How much highernwas the summit of Mt. Everest?

    asked on April 21, 2013
  22. physics

    The physics of satellite motion around Jupiter. A satellite of mass 2.00 x 104 kg is placed in orbit 6.00 x 105 m above the surface of Jupiter. Please refer to the data table for planetary motion included in this lesson. a) Determine the force of

    asked on April 24, 2011
  23. English (Reunion by John Cheever)

    What is the significance of the title? Although the the story depicts Charlie's reunion with his father the word reunion id used without a definite or an indefinite article. Why?

    asked on December 1, 2014
  24. physics

    The physics of a golf ball and kinetic energy. When a 0.045 kg golf ball takes off after being hit, its speed is 41 m/s. a) What is the kinetic energy of the ball after it has been hit? b) How much work is done on the ball by the club? c) Assume that the

    asked on April 24, 2011
  25. Precalc

    Solve the following equation for x in terms of ln and e. (2e^3)-6-(16e^-x)=0

    asked on March 3, 2014
  26. Finance

    Omega Instruments has budgeted $300,000 per year to pay for certain ce- ramic parts over the next 5 years. If the company expects the cost of the parts to increase uniformly according to an arith- metic gradient of $1 0,000 per year, what is it expecting

    asked on May 26, 2013
  27. math formula?

    Mary would like to save $10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end of each week in a savings account that pays 12%/a, compounded monthly, to meet her goal? d. Determine the weekly deposit

    asked on January 20, 2011
  28. PreCalc PLEASE HELP

    Find the common ratio, r, for the geometric sequence that has a1= 100 and a8= 25/32

    asked on March 23, 2014
  29. Scientific studies

    A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did the stone fall?

    asked on February 17, 2010
  30. Spanish

    What is this in Spanish: You get dressed at 8 o'clock. Te vistes a las ocho. ? Is this the correct translation? If not, then what is the correct translation?

    asked on May 3, 2010
  31. science

    joey drives his car 7 kilometers north. he stops for lunch and then drives 5 kilometers south. what distance did he cover?

    asked on January 27, 2014
  32. physics. again.

    a baseball is popped straight up. the ball leaves the bat moving at 37.8 m/s. at what time after being struck is the ball moving at 10 m/s upwards? where is the baseball at this time? answer= 67.9m I need to know how to get this answer

    asked on December 1, 2013
  33. Organic Chemistry

    2 methyl-2-propanol is treated with 9M H2S04. What is the mystery product?

    asked on October 7, 2010
  34. physics

    A 7.6 kg chair is pushed across a frictionless floor with a force of 42 N that is applied at an angle of 22° downward from the horizontal. What is the magnitude of the acceleration of the chair?

    asked on December 2, 2010
  35. Physics

    A 2 kg steel ball strikes a wall with a speed of 13.9 m/s at an angle of 54.5 ◦ with the normal to the wall. It bounces off with the same speed and angle, as shown. If the ball is in contact with the wall for 0.277 s, what is the magnitude of the average

    asked on February 12, 2016
  36. History

    When was the first contact of the following first nations people of canada: First nations of the Mackenzie and Yukon River Basins Pacific coast first nations Plateau Fist Nations Plains first nations

    asked on February 20, 2014
  37. trig

    If cot(x) = −19/18 , where x is in Quadrant IV, what is the exact value of sin(2x)?

    asked on September 4, 2010
  38. Physics

    A car travels due east with a speed of 40.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 54.0° with the vertical. Find the velocity of the rain

    asked on September 29, 2015
  39. English (Urgent)

    In John Cheever's story reunion, what do the restaurants symbolize. Why does Charlie call hi father daddy at the end of the story? Examine the first and last sentences of the story. What is common and why? How do you interpret the ending of the story? Does

    asked on November 30, 2014
  40. physics

    The physics of gravity and satellite motion around Jupiter. A satellite of mass 2.00 x 104 kg is placed in orbit around Jupiter. The mass of Jupiter is 1.90 x 1027 kg. The distance between the satellite and the centre of Jupiter is 7.24 x 107 m. a)

    asked on April 24, 2011
  41. Pre Calc

    Solve the following inequality in terms of natural logarithms (ln). (e^6x)+2 is less than or equal to 3.

    asked on March 3, 2014
  42. Physics

    a baseball is popped straight up. the ball leaves the bat moving at 37.8 m/s. to what height did the ball rise. t=7.72 s the answer is 73 m, but how do you get that answer

    asked on December 1, 2013
  43. physics

    The physics of an electron moving from one plate to another. An electron acquires 4.2 x 10-16 J of kinetic energy when it is accelerated by an electric field from Plate A to Plate B. What is the potential difference between the plates, and which plate is

    asked on April 28, 2011
  44. chemistry

    A 10.00g sample of a mixture of CH4 and C2H4react with O2 at 25C and 1 atm to produce CO2 and water. If the reaction produces 520kJ of heat what is the mass percent of CH4 in the mixture? I don't want the answer just how to o

    asked on March 14, 2011
  45. physics

    The physics of an electron falling through a potential difference. How much kinetic energy will an electron gain (joules) if it falls through a potential difference of 350 V?

    asked on April 28, 2011
  46. physics

    The physics of moving a small charge through a potential difference. How much work is needed to move a -8.0 ìC charge from ground to a point whose potential is +75 V?

    asked on April 28, 2011
  47. Scientific studies

    A helicopter is ascending vertically with a speed of 5.20m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take fo the package to reach the ground? [Hint: The package's initial speed equals the

    asked on February 17, 2010
  48. Math

    the ratio of the base of an isoceles triangle to one of the legs if the base is 10cm long and the leg is 4 cm less than twice the length of the base

    asked on November 9, 2016
  49. Canadian History

    1) The essential question for the last few lessons asks "How did Canada seek to establish economic security and social justice from the period of the depression to the patriation of the Constitution? What kind of economic security did the Canadians seek?

    asked on May 9, 2014
  50. physics

    A giant excavator (used in road construction) can apply a maximum vertical force of 2.25×105 N. If it can vertically accelerate a load of dirt at 0.200 m/s2, what is the mass of that load? Ignore the mass of the excavator itself.

    asked on December 2, 2010
  51. math

    At 8 A.M., Dylan and his neighbor, Mickey, drove in their cars to a city that was 240 mi. away from their neighborhood. When Dylan reached the city, Mickey had 40 mi. to go. He finally completed the trip 48 minutes later. a) How long did it take Mickey to

    asked on February 27, 2015
  52. physics

    A giant excavator (used in road construction) can apply a maximum vertical force of 2.25×105 N. If it can vertically accelerate a load of dirt at 0.200 m/s2, what is the mass of that load? Ignore the mass of the excavator itself.

    asked on December 2, 2010
  53. Physics

    Approximately 4 x 10^9 kg of matter is converted into enery in the sun per second. Express the power output of the sun in watts.

    asked on December 31, 2009
  54. English

    (1) I get a kick out of creating model airplanes. (2) I've been making them since I was knee-high to a grasshopper. (3) My grandfather used to fly bush planes in the Outback. (4) He would tell me stories and say that he and I were two peas in a pod. Which

    asked on March 16, 2017
  55. Environmental Science

    India’s prime minister puts you in charge of that nation’s population policy. India has a population growth rate of 1.6% per year, a TFR of 2.7, a 49% rate of contraceptive use, and a population that is 71% rural. What policy steps would you recommend,

    asked on September 28, 2014
  56. Finance

    A building is priced at 125,000. If a down payment of 25,000 is made and a payment of 1,000 every month thereafter is required, how many months will it take to pay for the building? Interest is charged at a rate of 9% compounded monthly.

    asked on May 26, 2013
  57. chem

    Is this the correct equatioin for the reaction of cyclohexene with MnO4- ? C6H10 + MnO4- ----> C6H10(OH)2 + MnO2

    asked on February 20, 2012
  58. Scientific studies

    A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is how high is the cliff?

    asked on February 17, 2010
  59. Scientific studies

    A stone is thrown vertically upward with a speed of (a) How fast is it moving when it reaches a height of 11.0 m? (b) How long is required to reach this height? (c) Why are there two answers to (b)?

    asked on February 17, 2010
  60. English - Hamlet Essay

    I've been asked to write an Essay for english class on Hamlet. It sais to : Select one speech from Act IV of Hamlet and write a cause and effect essay for how it targets its audience. You may choose a target audience of any context or production of the

    asked on November 20, 2009
  61. Math

    Sam had foreign stamps and local stamps. After giving 1/4 of his foreign stamps and 11 local stamps, he had an equal number of foreign and local stamps. How many local stamps did he have in the beginning? I got 32 for the answer by guessing and checking

    asked on April 27, 2016
  62. Physics

    A skier of mass 71.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 62.2 m up a 37.0 slope (assumed to be fric- tionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s2 .

    asked on January 9, 2012
  63. calculus

    For what value of the constant c is the function f continuous on the interval negative infinity to positive infinity? f(x)={cx2+7x if x

    asked on September 16, 2011
  64. physics

    The physics of the DNA molecule. The two strands of the DNA molecule are held together by electrostatic forces. There are four bases which make up the DNA molecule, thymine (T), adenine (A), cytosine (C), and guanine (G). In two of the bases, thymine and

    asked on April 28, 2011
  65. physics

    a baseball is popped straight up. the ball leaves the bat moving at 37.8 m/s. at what time is the ball 20 m above the ground?

    asked on December 1, 2013
  66. calculus

    For what value of the constant c is the function f continuous on the interval negative infinity to positive infinity? f(x)={cx2+7x if x or =2

    asked on September 16, 2011
  67. algebra

    Algebra Equation 3x-12=-48

    asked on April 26, 2010
  68. Science Experiment Help

    Just need help answering this one question for my science experiment: "Name another mixture that could be separated like the sugar-water mixture." the sugar-water turned into caramel when I heated it... so what other mixtures do that? Thnx for the help!

    asked on March 13, 2016
  69. Environmental Science

    What are some common justifications for environmental policy?

    asked on September 20, 2014
  70. social studies

    during the early 1800s the United States tried to make peace with other countries in order to grow and develop. give an example of one of those peace efforts and briefly explain what it tried to accomplish

    asked on February 10, 2014
  71. practice question

    How do i go about solving this one? A cash flow sequence starts in year 1 at $3000 and decreases by $200 each year through year 10. (a) Determine the value of the gradient G; (b) determine the amount of cash flow in year 8; and (c) determine the value of n

    asked on May 26, 2013
  72. math

    Simplify the rational expression in the form A/B. X^-2+X^-4. Express the final result in a single fraction using positive exponents only.

    asked on January 19, 2013
  73. Math

    Jarrels goal is to be half finished with the book he is reading by friday. By wednesday he has read 1/3 of the book.How much more does he need to read to meet his goal?

    asked on October 21, 2010
  74. Physics

    A man drinks a bottle of beer and proposes to work off it's 460 kj by exercising with a 20-kg barbell. If each lift of the barbell from chest height to over his head is through 60 cm and the efficiceny of his body is 10 percent under these circumstances,

    asked on December 31, 2009
  75. Advanced Algebra

    I some problems that I need help with please. Add or subtact as indicated and write the results in standard form. 4. 6-(-5+7i)-(7-2i) Divide and express the result in standard form. --These problems I don't understand, do you have to multply the

    asked on August 18, 2007
  76. math

    At 6 A.M., Dylan and his neighbor, Mickey, drove in their cars to a city that was 300 miles away from their neighborhood. When Dylan reached the city, Mickey had 50 miles to go. He finally completed the trip 48 minutes later. A) How long did it take Mickey

    asked on April 28, 2016
  77. Math

    Emilio left Main Road at 8 A.M and arrived at Lame Lane at 2 P.M. His average for the whole journey was 60 mph. For the first 70% of the trip, he drove at an average speed of 65 mph. For the next 25% of the remaining trip, his average was 54 mph. Find his

    asked on April 27, 2016
  78. PRECALC HELPPP please

    A local photo gallery sells 3 different types of picture packages: economic, standard and luxury. The table below shows the number of pictures and packages given in each of the 3 packages; Package: Wallet: 4x6: 8x10: Economic 10 4 1 Standard 20 4 2 Luxury

    asked on May 24, 2014
  79. ECONOMICS/ACCOUNTING/BUSINESS

    PLS HELP, BEEN STUCK FOREVER ON TWO QUESTIONS, THIS IS ONE : There are usually no costs for the first 3 years, but thereafter maintenance is re- quired for restriping, weed control, light replacement, shoulder repairs, etc. For one section of a particular

    asked on June 24, 2013
  80. chemistry

    A 10.00g sample of a mixture of CH4 and C2H4react with O2

    asked on March 14, 2011
  81. Math

    round to the nearest tenth if necessary 6 is 98% of x

    asked on November 7, 2010
  82. math

    Maureen forgets to turn a faucet off. After a minute, 1.5 gallons of water comes out of the faucet. Which equation can bw used to find the number of gallons, g, that comes out of the faucet after 2 hours? A. g= 1.5 x 1/30 B. g=1.5 x 1/120 C. g=1.5 x 120 D.

    asked on October 27, 2010
  83. math

    1,2,4,8,16,32,64 in exponential form?

    asked on October 19, 2010
  84. college physics

    The electric field near the surface of a uniformly charged conducting plane can be determined by Gauss's law. If the plane is a square of sides 11.5 cm and carries a charge of 22.0 nC (that's nanocoulombs), what is the magnitude of the electric field near

    asked on January 24, 2010
  85. Physics

    A forward force of 8X102 Newtons is applied to a 1.9x103 kg car. If the friction force on the car is 6x102 Newtons what is the acceleration of the car in units of m/s2?

    asked on January 3, 2010
  86. Physics

    List the fossil fuels in order in which they will probably be used up.

    asked on January 1, 2010
  87. Physics

    A weightlifter raises a 90k-g barbell from the floor to a height of 2/2 m in 0.6 s. What was his average power output during his lift? Sorry I wrote it wrong the first time!

    asked on December 31, 2009
  88. Physics

    A weightlifter raises a 90k-g barbell from the floor to a height of 2/2 m in 0.6 s. What was his average power output during the life?

    asked on December 31, 2009
  89. HELP - math

    8+4*2+7/3=20 Where do I place parentheses to make this equation correct?

    asked on August 26, 2009
  90. CHEM QUESTION!

    I did a lab on the colorimetric determination of iron concentration and I'm not sure how to convert fe conc into ppm. For example, how would i convert 0.6 ug/ml to ppm?

    asked on March 26, 2016
  91. Math

    Matt who stands at 68 inches tall casts an 8 foot shadow at the same time a pear tree casts a 21 foot shadow. How tall is the tree?

    asked on September 3, 2014
  92. Pre-Calc Help please

    Solve for x: log base5 (4x) + log base5 (x) = log base5 (64)

    asked on March 4, 2014
  93. English

    Lord of the flies questions 1-7 Although it appears that Ralph and jack would become good friends strain is being placed on their friendship. The boys seem to be from two different world, "There was the brilliant world of hunting, tactics, fierce

    asked on February 19, 2014
  94. science

    An average diameter of a star is approximately 109 m and an average diameter of a galaxy is 1021 m. Considering the given data, apply a sense of scale calculation to determine if when a galaxy’s diameter is scaled down to the length of Manhattan (21.6 km

    asked on October 10, 2011
  95. physics

    One of the moons of Jupiter is Io. The distance between the centre of Jupiter and the centre of Io is 4.22 x 10^8 m. If the force of gravitational attraction between Io and Jupiter is 6.35 x 10^22 N, what must be the mass of Io?

    asked on April 24, 2011
  96. physics

    The physics of energy and Earth's moon as a satellite. The moon is an Earth satellite of mass 7.35 x 10^22 kg, whose average distance from the centre of Earth is 3.85 x 10^8 m. a) What is the gravitational potential energy of the moon with respect to

    asked on April 24, 2011
  97. math

    3. Find the exact value of the following, show all work. a. sin^2 (75^0)/sin45, cos^2, 30^0 b. tan(135) + sin(30)cot(120)

    asked on January 19, 2011
  98. Math

    6 is 98% of x which is 6.122448979 and I have to round to the nearest whole amount where necessary

    asked on November 7, 2010
  99. math

    The birth weight of childeren were 7 pounds 2 ounces, 6 pounds 10 ounces, 8 pounds 5 ounces, 7 pounds 9 ounces. Luis estiamted the total weight of the babies at birth was 30 pounds. Which best describes his estimate? A. More than the actual weight because

    asked on October 27, 2010
  100. math

    Most populated U.S cities City Population(millions) New york - 8.10 Los Angeles - 3.85 Chicago - 2.86 Houston - 2 01 Between which two cities was the difference in population about 800,000 people? A. Chicago and Los Angeles B. New york and Los Angeles C.

    asked on October 27, 2010

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