Newest questions and responses by Damon
  1. Math

    Add the following vector using the Component law. 3 N in a direction 15° south of west and 4 N in a direction 12° east of south.

    asked on December 7, 2018
  2. Math

    What is 3 tens plus 52 and 11? Write your answer in 3 forms.

    asked on January 21, 2018
  3. Math

    At the same store, Peter bought 2 pairs of pants and 5 shirts for $61, and jissica bought 3 pairs of pants and 2 shirts for $64. How much does 1 pair of pants cost? ~Please explain this problem to me

    asked on March 27, 2017
  4. math

    A bag contains 2 white marbles amd 3 green marbles. Two marbles are drawn at random, one after the other. The first marble is replaced before the second one is drawn. What is the probability that the first marble is green and second one is white?

    asked on March 2, 2017
  5. Physics

    An object of mass 1.00kg is moving over a horizontal circular path of radius 2.00m, with a speed of 3.00ms^-1. Determine: (a) its centripetal acceleration (b) its kinetic energy (c) its period (d) its angular velocity

    asked on November 4, 2016
  6. Chemistry

    Dissolved 0.7500 g calcium chloride dihydrate and impure, in distilled water and the volume was elevated to 200.00 mL in a volumetric flask. A rate of 10.00 mL of the same consumed the titration 18.9 mL 0.0125 M EDTA using CALCON as indicator. What is the

    asked on August 28, 2016
  7. Chemistry

    Dissolved 0.7500 g calcium chloride dihydrate and impure, in distilled water and the volume was elevated to 200.00 mL in a volumetric flask. A rate of 10.00 mL of the same consumed the titration 18.9 mL 0.0125 M EDTA using CALCON as indicator. What is the

    asked on August 27, 2016
  8. Chemistry

    Dissolved 0.7500 g calcium chloride dihydrate and impure, in distilled water and the volume was elevated to 200.00 mL in a volumetric flask. A rate of 10.00 mL of the same consumed the titration 18.9 mL 0.0125 M EDTA using CALCON as indicator. What is the

    asked on August 26, 2016
  9. check my spanish 3

    escriba la forma del verbo indicado en el tiempo indicado yo/ tener/ futuro My answer is tendré

    asked on August 9, 2016
  10. algebra 2

    Create a set of data with 5 numbers that satisfy all of the following conditions: 1. the range is 10 2. the mean is 20 3. the median is 22

    asked on August 6, 2016
  11. Chemistry

    sample of silver metal is suspected to be contaminated with zinc. A 0.2365 g portion of this metal is dissolved in nitric acid and the silver ions precipitated with excess aqueous NaCl. After filtering and drying, the mass of the precipitate is found to be

    asked on August 2, 2016
  12. Algebra 2

    How much larger is the area of the circle enclosed by x^2 + y^2 = 100 than the area of the circle enclosed by x^2 + y^2 = 25?

    asked on August 1, 2016
  13. Chemistry

    If the pH of a 0.46 M aqueous solution of a weak base is 9.2, estimate the Kb of the base:

    asked on August 1, 2016
  14. Chemistry

    C2D3 has a solubility product constant of 9.14×10−9. What is the molar solubility of C2D3? Express your answer with the appropriate units.

    asked on July 28, 2016
  15. Chemistry

    How much H3PO4 is needed to neutralize 1 liter of a 0.75M solution of NaOH? (in moles)

    asked on July 26, 2016
  16. Chemistry

    What volume of nitrogen dioxide (in L) is produced from the complete reaction of 16.87 of lead (ii) nitrate at STP

    asked on July 25, 2016
  17. Math

    For what value(s) of r is r^2+5r+6/r+2 equal to 0? A) -2 only B) -3 only C) 3 only D)-2 or -3 E) 2 or 3 I got A but it is incorrect and I'm still confused Thanks

    asked on July 20, 2016
  18. Chemistry

    How many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal solution)?

    asked on July 20, 2016
  19. Chemistry

    Marcela dissolves 80.0 g of ammonium nitrate in 50.0 mL of water at room temperature and notes that the temperature of the solution decreases by 5.0°C. Which correctly designates the signs of changes of G, S and H for this reaction?

    asked on July 16, 2016
  20. Chemistry

    N2H4 + 2H2O2= N2 + 4H2O What are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water

    asked on July 14, 2016
  21. life orientation ?

    Is it a violation of my human rights to be asked the same question time after time, day after day, week after week until I am ready to scream?

    asked on April 24, 2016
  22. Chemistry

    The molar solubility of a generic substance, Mg(OH)2 ksp = (1.2x10^-11) in 0.10 M NH3 Kb = 1.8 x 10^-5 help me please =)

    asked on April 18, 2016
  23. Typos, math, physics

    Would everyone who posted math and physics problems this morning please go back and check for typos? It is difficult to guess what you mean and we do not have your text book.

    asked on June 21, 2015
  24. stastic

    Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01 (Points

    asked on April 2, 2015
  25. physics

    A steel ball with a mass of 0.65 kg is swinging in a circle with a radius of 1.3 meters at a speed of 17m/s. What is the centripetal force?

    asked on February 20, 2015
  26. Physics

    A baseball is thrown horizontally from a height of 3.6 meters at a speed of 24 m/sec. How far will it travel along the ground?

    asked on February 20, 2015
  27. Chemistry

    If there are 25 mg of water in a typical drop of water, how many drops of water would react completely with 2 mmol of phenylmagnesium bromide? How do I set up the problem?

    asked on November 9, 2014
  28. Chemistry

    Compare the physical and chemical properties of acids and bases.

    asked on March 4, 2014
  29. Cassie - please check this earlier question!


    asked on January 23, 2014
  30. Steve - Damon is not sure!

    Steve, I am not sure about this: http://www.jiskha.com/display.cgi?id=1390496194 Damon

    asked on January 23, 2014
  31. physics

    The latent heat of fusion for water is 33.5 × 104 J/kg, while the latent heat of vaporization is 22.6 × 105 J/kg. What mass m of water at 0 °C must be frozen in order to release the amount of heat that 2.32 kg of steam at 100 °C releases when it

    asked on July 30, 2013
  32. Math

    The separation between goalpost uprights in college football changed from 23 feet 4 inches to 18 feet 6 inches. What percent reduction was this?

    asked on December 5, 2012
  33. Math

    Please help! How do I find the mean weight of 2 groups of 100 kids... 1st grp mean weight is 55.7lbs and 2nd grp mean weight is 42.6lbs.

    asked on December 5, 2012
  34. Algebra


    asked on October 23, 2012
  35. college stats

    can someone please explain the steps: suppose that the grade point average,denoted by X,of a university student is Normally distributed with the mean 2.786 and standard deviation 0.375 A). a student is on the deans list if her GPA exceeds 3.746. What

    asked on October 1, 2012
  36. philosophy

    what philosopher would refute Glaucon's definition of justice in the Republic?

    asked on September 25, 2012
  37. geometry

    I need help on this question. Write the contrapositive,converse,and inverse of the statement.Determine if its true or false.If its false give a coynterexample. If I live in Redlands,then I live in California.

    asked on September 18, 2012
  38. Bob Pursley

    I can not copy and paste to the board.

    asked on March 23, 2012
  39. Statistics

    Consider a binomial experiment with 520 trials and 200 successes. To construct a test for a proportion p, what value do we use for the sample test statistic? Round your answer to two decimal places.

    asked on February 26, 2012
  40. math

    make an ordered stem-and-leaf plot of the data, 16.9,17.8,16.3,16.4,17.8,18.1,15.4,16.8,17.1,18.3,15.5,16.2,17.9

    asked on February 16, 2012
  41. geometry

    a regular hexagon is composed of 12 congruent 30,60,90 degree triangles. if the length of the hypotenuse of one of those triangles is 18 square root 3 find the perimeter of the hexagon

    asked on December 13, 2011
  42. geometry

    a parallelogram has the vertices (-1,2), (4,4), (2,-1), and (-3,-3). determine what type of parallelogram. find the perimeter and area. i found the parallelogram part and its a rhombus but i cant find the perimeter and area

    asked on December 8, 2011
  43. geometry

    A regular hexagon is composed of 12 congruent 30-60-90 triangles. If the length of the hypotenuse of one of those triangles is 18 square root 3, find the perimeter of the hexagon.

    asked on December 7, 2011
  44. ???how do i thank Ms.Sue

    Thank you

    asked on September 11, 2011
  45. 3rd grade math

    WRITING TO EXPLAIN. How can you use models to show and name the number 1,400 in two different ways? Explain.

    asked on September 11, 2011
  46. History

    Was there any possibility that the British empire could have been repaired after the Intolerable acts?

    asked on October 4, 2010
  47. 9th grade

    A collective noun is plural when the group acts as a unit (i.e., "The team lost their fourth game in a row.").

    asked on October 1, 2010
  48. Chemistry

    Name one metal ion that's not multivalent. Hydrogen?

    asked on July 8, 2010
  49. Chemistry

    How did the metal atoms become ions? Metal atoms became ions by losing electrons to form positively charged ions(cations). How did the nonmetal atoms become ions? Nonmetal atoms became ions by gaining electrons to form negative ions(anions).

    asked on July 8, 2010
  50. grammar not grammar

    Driving me crazy

    asked on June 14, 2009
  51. Old -Linear programming - up where it may be found

    Posted by Anonymous on Wednesday, November 26, 2008 at 8:49pm. P=-30x+25y Subject to 2x+3y>=30 2x+y=30 when x = 0, y = 10 when x = 15, y = 0 area above that line is in our region (are you sure your arrow is correct?) second constraint #2 2x+y

    asked on November 27, 2008
  52. Craig - baloon - calculus moved up

    Posted by Craig on Tuesday, November 25, 2008 at 7:54pm. t: 0 2 5 7 11 12 r'(t): 5.7 4.0 2.0 1.2 0.6 0.5 The volume of a spherical hot air balloon expands as the air inside the balloon is heated. The radius of the balloon in feet is modeled by a

    asked on November 26, 2008
  53. jennifer - Grand Canyon

    d = (1/2)g t^2 in feet, seconds units g = 32 ft/s^2 approximately so d = 16 t^2 t^2 = d/16 t = (1/4)(sqrt d) if d = 5280 t = .25 (sqrt 5280) = .25 * 72.7 =18.2 seconds

    asked on October 16, 2008
  54. Guido KIRA odds and evens

    KIRA did not have to add the odds and the evens. It was a trick question. Each difference is one. one times five = five

    asked on February 20, 2008
  55. dr wls - physics freak design problem

    wls, If you get a chance could you look at the "a !@#$%^&allenging" problem down a little from here. I am not sure my idea is the best.

    asked on February 10, 2008
  56. Julia - Green's theorem

    Sorry, I did not see your question ================================= Posted by julia on Monday, December 10, 2007 at 9:15pm. Can someone show me step by step how to work this problem out please. Let C be the triangle with vertices (0,0), (1,0), and (1,2).

    asked on December 11, 2007
  57. physics

    The distance from earth to the center of the galaxy is about 22500 ly (1 ly = 1 light-year = 9.47 1015 m), as measured by an earth-based observer. A spaceship is to make this journey at a speed of 0.9995c. According to a clock on board the spaceship, how

    asked on August 10, 2007
  58. physics-RC Circuit

    We had to do a RC Circuit experiment in the lab one step in the procedure goes as follows: Record the time needed to discharge a capacitor from 10.0 V to 9,8,7,6,5,4,3, and 2 V. Repeat once. The QUESTION BEING ASKED IS: Can you find the time to discharge

    asked on August 10, 2007
  59. physics

    A film of oil that has an index of refraction equalto 1.45 floats on water (n = 1.33). When illuminated by white light at normal incidence, light of wavelengths 629 nm and 449 nm is predominant in the reflected light. Determine the thickness of the oil

    asked on August 10, 2007
  60. physics

    In the experiment of Lloyd's Mirror, I understand what happens when a light beam is shone on a mirror and reflected, and it is phase shifted by 180 degrees. But what I don't understand is what a phase shift actually is. Can someone explain? The electric

    asked on August 10, 2007
  61. accounting

    Forecasting payments; If a firm pays its bills with a 30-day delay, what fraction of its purchases will be paid for in the current quarter? In the following quarter? What if its payment delay is 60 days?

    asked on August 9, 2007
  62. accounting

    Credit Policy Review The president, vice president, and sales manager of Moorer Corporation were discussing the company’s present credit policy. The sales manager suggested that potential sales were being lost to competitors because of Moorer

    asked on August 9, 2007
  63. electrical engineering

    Instructions The goal of this project is to design, simulate, build and test a simple speaker system that can connect to a portable audio device such as an mp3 player or laptop. The system has the following requirements: § Accept a standard head-phone

    asked on August 9, 2007
  64. math

    a 15 foot long standard weight pipe with a diameter of 4 inches is filled with water. what would be the total approximate weight of the pipe and the water it contains? If I recall my non-metric units, 1 cubic foot of water weighs about 62.4 pounds. the

    asked on August 9, 2007
  65. chem

    in the design of parts, it is genarally a good idea to avoid region or points ofstress concentration since these regions are susceptible to corroisn. give examples of the things that can be done to avoid stress raisers. salt(NaCl) is stored in an

    asked on August 9, 2007
  66. physics-force

    A uniform ladder is 10 cm long and weights 400 N. It rests with ists upper end against a frictionless vertical wall. Its lower end rests on the ground and is prevented from slipping by a peg driven into the ground. The ladder makes a 30 degrees angle with

    asked on August 7, 2007
  67. physics-intensity

    The intensity of a certain sound wave is 6 ì W.cm2. if its intensity is raised by 10 decibels, the new intensity (in ìW/cm2) is : a. 60 b. 6.6 c. 6.06 d. 600 E. 12 You can calculate this if you wish using logs, but you can do it in your head: 3 db means

    asked on August 7, 2007
  68. math

    Find the binary equivalent of x^8+x^3+x+1 x^1000 + x^11 + x + 1 I just converted the decimal-format exponents to binary format (0's and 1's times powers of 2). The reason you did not get a reply so far is that most of the tutors have probably never heard

    asked on August 7, 2007
  69. physics

    i need some help wih this, thanks!! Blocks A and B are moving toward each other along the x axis. A has a mass of 2.0 kg and a velocity of 50 m/s ( in the positive x direction ), while B has a mass of 4.0 kg and a velocity of -25 m/s ( in the negative x

    asked on August 7, 2007
  70. physics-speed

    i need help with this one thanks A particle starts from rest and is acted on by a net force that does work at a rate that is proportional to the time t. The speed of the particle is proportional to: a. sq. root t b. t c. t^2 d.1/sq. root t e. 1/t Work done

    asked on August 7, 2007
  71. physics

    hi im having trouble with this i think the answer is zero! can u guys double check ty if there are three blocks tied together, with a force enacted on the first block, the net force on the middle block is..... a. zero b. F/3 c. F/2 d. 2F/3 e. F This cannot

    asked on August 6, 2007
  72. chem

    Forty-two grams of benzoic acid is treated with concentrated nitric acid in some sulfuric acid. Forty-two grams of the major expected organic product is isolated. What is the percentage yield for this experiment? Give an equation with structural formulas

    asked on August 6, 2007
  73. chemistry

    There are three xylenes. Their melting points are 13 degrees C, -24 degrees C, and -48 degrees C. Nitration of the isomer with the 13 degree C mp results in only one mononitrated product. The isomer with mp= -24 degree C gives two mononitrated products,

    asked on August 5, 2007
  1. History

    I hear B most frequently. It would be hard to say that people who warn of global warming have no background in science. By the way "advocates" is the wrong word.

    posted on February 14, 2019
  2. Social Studies

    That is about Nigeria. I am inclined to think mixed for the first question

    posted on February 14, 2019
  3. Social Studies

    I am inclined to think that it is heavily dependent on export of oil (energy production) at this time.

    posted on February 14, 2019
  4. math

    r of plate = r 2 r = R tabletop area covered = 2 * pi r^2 total area of table = pi R^2 = pi (2r)^2 = 4 pi r^2 so area not covered = 2 pi r^2

    posted on February 14, 2019
  5. Social Studies

    oil https://www.britannica.com/place/Nigeria/Economy

    posted on February 14, 2019
  6. science


    posted on February 14, 2019
  7. social studies


    posted on February 14, 2019
  8. science

    Ah - what do you think? Try a search on the word courtship

    posted on February 14, 2019
  9. Social Studies

    1. ok 2. No way 3. No ! 4. I think not 5. Suspect you are right

    posted on February 14, 2019
  10. Algebra

    n = d+6 5 n + 10 d = 555 cents 5(d+6) + 10 d = 555 5 d + 30 + 10 d = 555 etc

    posted on February 14, 2019
  11. science gravity

    The only force operating on the moon is gravity. Net force = rate of change of momentum = mass * acceleration In the case of the moon the acceleration is centripetal, toward earth center, causing circular orbit around earth. Ac = v^2/R If the gravity stops

    posted on February 14, 2019

    top hole x = 38 cos 60 y = 38 sin 60 bottom hole x = 38 cos 30 y = 38 sin 30

    posted on February 13, 2019
  13. Calculus

    in quadrant where x and y are positive base = x height = x sqrt3 area = (1/2) x^2 sqrt 3 integrate area dy from y = 0 to y = 4 and multiply by 4 2 sqrt3 integral (16-y^2)dy 2 sqrt 3 [16 y - y^3/3] 2 sqrt 3 (16)(4 - 4/3) 32 sqrt 3 * 8/3 (256 /3 ) sqrt 3

    posted on February 13, 2019
  14. science

    or see : https://www.windows2universe.org/earth/interior/island_formation.html

    posted on February 13, 2019
  15. Math Repost for Bush

    Yes b

    posted on February 13, 2019
  16. Calculus

    integral = 2 x - x^3/3 at sqrt 2 - at 0 = 2 * 2^.5 - 2^(1.5)/3 - 0 length of rectangle = 2^.5 so y * [ 2^.5 ] = 2 * 2^.5 - 2^(1.5)/3 y * [ 2^.5 ] = 2 * 2^.5 - 2^.5 *2 /3 y * [ 2^.5 ] = 2 * 2^.5 [ 1-1/3) y * [ 2^.5 ] =(4/3) (2^.5) y = 4/3 where is that?

    posted on February 13, 2019
  17. Physics

    q E = q V B V = E/B for any old q = 4.6*10^4 / 5.2

    posted on February 13, 2019
  18. History

    Try Googling: neutrality act lend lease

    posted on February 13, 2019
  19. Social studies

    Which do you think? Only one makes sense to me but I am no expert.

    posted on February 13, 2019
  20. History


    posted on February 13, 2019
  21. math *functions*

    You did not like the ones I got?

    posted on February 13, 2019
  22. math *functions*

    well, if the sequece starts at n = 1 and continues to n = 4 then 1(0) -5 = -5 2(1)-5 = -3 3(2)-5 = 1 4(3)-5 = 7 etc

    posted on February 13, 2019
  23. English

    Where is Nigeria? What language do they speak? What do they eat and where does it come from? Do they have cities? Rivers, desert, jungle, farmlands? Is it hot in the summer and cold in the winter? Rain much? What kind of government do they have? Do people

    posted on February 13, 2019
  24. social studies

    I might pick too much emphasis on military and sort of democratic but do not insult the rich bosses. However read your text. Those are just my opinions and I do physics.

    posted on February 13, 2019
  25. world history

    Ideas and information says printing press to me. https://www.livescience.com/2569-gutenberg-changed-world.html

    posted on February 13, 2019
  26. Science

    If you lie on your back and look straight up, at noon you face the sun. (on the equator on the equinoxes) At midnight you face dark space or perhaps a full moon.

    posted on February 13, 2019
  27. social studies

    You picked correctly.

    posted on February 13, 2019