1. physics

    A skateboarder with mass ms = 42 kg is standing at the top of a ramp which is hy = 3.7 m above the ground. The skateboarder then jumps on his skateboard and descends down the ramp. His speed at the bottom of the ramp is vf = 6.3 m/s. Write an expression

    asked by Anonymous on October 26, 2013
  2. ENGLISH

    hi i need a paragraph not instructions on introduction paragraph No one here will write your paragraph for you. Only you can do that. Once you have one written, please post it and someone here will critique your work.

    asked by Gurv on November 21, 2006
  3. math, algebra

    can someone correct this for me or help me. 6x^2y^3+ 9x^2y^3 divided by 3x^2y^2 my solving and answer is: 15 x x y y y ---------- = 5y 3 x x y y Looks good to me. I've never thought of showing x^2y^3 as xxyyy. That a neat wrinkle. We see quickly that the

    asked by jasmine20 on December 12, 2006
  4. Physics

    A small block on a frictionless horizontal surface has a mass of 2.50×10−2 Kg. It is attached to a massless cord passing through a hole in the surface. The block is originally revolving at a distance of 0.300 m from the hole with an angular speed of

    asked by Christina on November 7, 2007
  5. socail studys

    Which statement explains why the British system of government is a constitutional monarchy? A. The prime minister is chosen according to the constitution. B. The king or queen has more power than the elected Parliament. C. A king or queen is the head of

    asked by yee poods on February 8, 2019
  6. Math

    Hudson is already 40 miles away from home on his drive back to college. He is driving 65 mi/hr. Write an equation that models the total distance d travelled after hours h. What is the graph of the equation. When Phil started his new job, he owed the

    asked by Maia on October 11, 2012
  7. Physics

    18. (II) At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate ehat input of the second. Th eoperating temeprautres of the first are 680 degrees C and 430 degrees C, and of the second 415 degrees C and

    asked by Kate on December 16, 2009
  8. English help

    From the words below supply the words needed to complete the sentences. Querulous, commiserate, tedious, pugnacious, thwart, incorrigible A. Trying to keep the INCORRIGIBLE prisoners from escaping was Jack's responsibility. Although he sometimes enjoyed

    asked by Anonymous on May 10, 2014
  9. physics....

    1) In one scene of the movie Raiders of the Lost Ark, Indiana Jones is running along the top of a moving train. He is running at a speed of 10 km/h, relative to the train. The train is moving at a speed of 100 km/h, relative to the ground. Draw a rough

    asked by april on June 14, 2012
  10. Le morte d'arthur

    I don't understand it what did Uamain emaim mathur learn by being with the three ladies from the fountain after 12 months? Thank you for using the Jiskha Homework Help Forum. Now I have a few questions for you. What exactly are you reading (title, author)

    asked by Anonymous on September 16, 2006
  11. Math & a bit of Physics

    A block of mass 11 kg is at rest on a rough plane inclined at 30° to the horizontal. A force acts on the block in a direction up the plane parallel to a line of greatest slope. When the magnitude of the force is 2X N the block is on the point of sliding

    asked by Autumn on November 22, 2017
  12. ENGLISH 11

    1. When Thomas Paine writes about reconciliation, he is referring to (1 point) {A.}the southern Colonies staying peacefully connected to the northern Colonies. B.the Colonies staying peacefully connected with Great Britain. C.the Colonists staying

    asked by Anonymous on March 13, 2012
  13. Macroeconomics

    Ok so this probably seems easy but I am not sure how to work these. We are given a table with data Price Paper Price 2010 2 100 2.5 2011 3 125 3 2012 4 150 3.5 we are usig 2011 as base year a) what is nomial GDP? b) Real GDP? c) GDP Price Index d) CPI Is

    asked by Isis on September 12, 2012
  14. Physics

    6) If a flea has a mass of 2.0x10^2 micrograms jumps vertically to a height of 65mm and 75% of the energy comes from elastic potential energy stored in the protein, determine the initial quantity of elastic potential energy. drwls said to use: (1/2)M g H =

    asked by Alex on May 19, 2008
  15. Physical Science

    Need help- 1.Eva is in a closed dark room. She uses her arm muscles to turn on a lamp. When she moves her hand closer to the lamp, the light heats her hand. The light bounces off the pages of a book and into her eyes. If this room is a closed system, what

    asked by mysterychicken on May 22, 2009
  16. precalc

    Solve: round to the thousandths if necessary! 1) 4^3/4x+5 = 12 2) log(x-1) + log x = log 6 3) 2log(base 4) 5 - log(base 4) x + log(base 4) 3 - log(base 4) 7 = 1/2

    asked by justin on December 2, 2015
  17. Trig

    How do i solve sinx/cosx(sinx+cosx/sinx×cosx)=secx? I know it's 1/cosx because it equals secx but I don't know how to get there? :^(

    asked by Jodi on February 5, 2015
  18. pyhsics

    A man drops a rock off the side of a cliff, and hears it hit the bottom 2.8 seconds later. If the average speed of sound is 335 m/s, how high is the cliff? I have been able to figure out this much, but I don't know how to solve the problem with the data

    asked by JJ on October 24, 2014
  19. English

    Which job would you take- one that is more (ingenious,gainful) right now or one that pays small salary but offers a chance for valuable training? Gainful? We were pleasantly surprised to see that she completed the difficult task we had given her with

    asked by Jerald on September 10, 2012
  20. Chemistry 12

    Hey yall! i am working on a lab where we used NaOH solid (pellets) and 1.0M of NaOH solution. i was wondering is Sodium Hydroxide a substance that reacts with the enviroment? because maybe that could be like a source of error right? so basically i am

    asked by sandie on March 19, 2007
  21. accountancy

    2. The ledger accounts of M Ltd. show the following balances: Rs. 14% Preference share Capital 3,00,000 Securities Premium 20,000 Investment Allowance Reserve 50,000 General Reserve 80,000 Profit and Loss Account 38,600 The company redeems preference

    asked by manoj on October 31, 2008
  22. Safety

    How does worker's compensation work in West Virginia? What has it been designed to do? Thank you for using the Jiskha Homework Help Forum again. If you have a search engine, such as Google, you will find lots of information. Here is some of it: 1.

    asked by Cindy on April 11, 2007
  23. physics

    A dragster and driver together have mass 918.8 kg. The dragster,starting from rest,attains a speed of 25.8 m/s in .53s . Find the average acceleration of the dragsters during this time interval. Answer in units of m/s^2. What is the size of the average

    asked by alexa on July 2, 2011
  24. Physics

    Two lifeguards pull on ropes attached to a raft. If they pull in the same direction, the raft experiences a net external force of 365 N to the right. If they pull in opposite directions, the raft experiences a net external force of 132 N to the left. Draw

    asked by Eren on November 3, 2013
  25. statistics 1

    A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.

    asked by Vanessa on September 24, 2014
  26. Statistics 1

    A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.

    asked by Vanessa on September 24, 2014
  27. statistics 1

    A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.

    asked by ANAHI on September 23, 2014
  28. statistics 1

    A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.

    asked by MIA on September 23, 2014
  29. sat math

    At a certain hospital, 89 children were born in the month of June. If more children were born on the fifteenth of June than on any other day in June, what is the least number of children that could have been born on the fifteenth of June? The number of

    asked by skye on July 30, 2012
  30. physics

    A spring has an unstretched length of 10 cm . It exerts a restoring force F when stretched to a length of 12 cm . For what total stretched length of the spring is its restoring force 3F? At what compressed length is the restoring force 2F? I keep doing

    asked by jessica on April 11, 2016
  31. math

    Person 1 was walking down a path one day when Person2 appeared in front of it at exactly 8:06 AM. The next day, Person 1 was walking down the same path, and Person 2 appeared in front of it at 6:03 PM. The next day, the same thing happened at 11:05 AM. The

    asked by Blair on July 9, 2008
  32. math

    The formula Total cost = Cost + Shipping cost + Holding cost is used to find the total cost of a business asset. The formula can be written in symbols as T=C+S+H. Solve the formula for H, the holding cost of the asset.

    asked by Debbie on December 14, 2013
  33. math

    You manage inventory for your company and use a continuous review inventory system to control reordering items for stock. Your company is open for business 310 days per year. One of your most important items experiences demand of 24 units per day, normally

    asked by Candace on July 17, 2012
  34. Math

    A new automobile costs $32,000. The value of the same automobile after t years is given by V = 32000(0.8)t. The following steps determine how many years it will take for the value to decrease to one-eighth the initial value, which is $4,000.

    asked by Sam on April 19, 2017
  35. Finance

    6. You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid corporate debt security with a yield of 6.5 percent. The expected inflation rate for the next year is expected to be 2.5 percent. a.

    asked by Heather on November 2, 2012
  36. Macroeconomics

    Can someone point me in the right direction on how to solve this? 1. Suppose you have an economy with two factors of production (capital and labor), and suppose that capital's share of national income is 40% and that labor's share is 60%. Assume also that

    asked by Robson on September 14, 2012
  37. Grammar

    Circle the adjectives that can be used with the nouns on the right . 1)upward 2)growing 3)recent (Problem) Upward and growing 1)steady 2)severe 3)reliable. (Supply) Sever and reliable 1)available 2)increasing 3)public. (Concern) Available and increasing

    asked by Maryam on June 6, 2013
  38. Chemistry

    Why does Beer’s Law apply only to relatively dilute solutions and not concentrated ones? Why is it important to take absorbance readings of a solution at its wavelength of maximum absorption? (1 mark) This questions are related to spectrometry. Cana

    asked by Eunice on February 11, 2007
  39. Chemistry

    1) When hydrazine (N2H4) is burned in a 253-g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is

    asked by Sarah on November 14, 2010
  40. Calculus

    Posted by Aletha on Sunday, March 18, 2007 at 6:51pm. After t hours of an 8-hour trip the distance a car travels is modeled by: D(t)= 10t + (5)/(1+t) - 5 where D(t) is measured in meters. a) derive a formula for the velocity of the car. b) how fast is the

    asked by Aletha on March 18, 2007
  41. Chemistry

    1) When hydrazine (N2H4) is burned in a 253-g brick container, the temperature of the brick increases by 5.13 degrees Celsius. Calculate the quantity of heat released in this raection. The specific heat of brick is 0.840 J/(gC). 2) A sample of coal is

    asked by Sarah on November 14, 2010
  42. Light Intensity on a Screen

    A set of narrow vertical slits is located a distance D from a screen. All the slits have the same width, equal to 35.1 μm. The intensity pattern in the figure is observed when light from a laser passes through the slits, illuminating them uniformly. How

    asked by Kid on October 13, 2017
  43. physics

    A 30g bullet with a horizontal velocity of 500m/s comes to a stop 12 cm within a solid wall. a) what is the change in its mechanical energy? b) What is the magnitude of the average force from the wall stopping it? a) what would I use of the equation? Can

    asked by Jamie on January 10, 2007
  44. math help

    "Three cards are randomly selected from a standard 52-card deck. What is the probability of getting 3 hearts or 3 numbers less than 6 (count aces as 1)?" I think the answer is 0.0645, but I'm not sure if this is right. Could someone check this? "Half of a

    asked by Abby on May 24, 2012
  45. English

    I am the WORST writer. English is my weakness. I just wrote this literary analysis. I would go to the writing center at my school, but the paper is due tomorrow and it doesn't open until after my class. I would appreciate it SO much is someone could just

    asked by Emily on March 24, 2011
  46. English composition

    I'm writing a paper to explain a concept of the bevel Ella Minnow Pea. I've come up with a thesis statement and my teacher has approved it, but I'm just stuck as to what I'm writing about. The assignment instructions asks "How does Dunn legitimize his

    asked by Dylan on October 26, 2014
  47. Geometry

    Hello! Thanks for checking my question out! ____ Use the Corresponding Angles diagram to answer the question. Diagram URL (remove spaces so that it can work): h t t p s : / / p r n t . s c/ g v v 9 k q 2. Which can be used to directly prove that ∠1 ≅

    asked by Da Fash on October 10, 2017
  48. Physics

    the pressure at a point below a point below the surface of the sea is caused by both the height of the water above that and the air pressure on the surface of the sea. if the diver reaches a depth of 20m below the surface on the surface of the sea

    asked by Joe on January 26, 2016
  49. Psychology

    1.Do axons and dendrites meet at synapses? True 2. Does perception take place in the corpus callosum? False 3. One of the drawbacks of breast feeding is that the quantity of breast milk produced is not adjustable. for example it may be difficult for a

    asked by Lisa on September 6, 2013
  50. chemistry

    "Write equations for the half-reactions that occur at the anode and cathode for the electrolysis of the following aqueous solution: CuBr2(aq)" Possible oxidation reactions: 1. 2Br- -> Br2 + 2e- = -1.09 2. 2H2O -> O2 + 4H+ + 4e- = -1.23 Possible reduction

    asked by Kate on April 2, 2014
  51. 9th grade Math

    Tittle: Police Officer Salary: $3,142/month Average work hours per week:40 School Loan:$15,000 Responsible for patrolling an assigned area to prevent and discover crime and to enforce regulations.Duties may include:conducting investigations,making

    asked by Ashley on November 5, 2009
  52. Math

    Tickets for a show sold 6 adult tickets and 10 child tickets for a total $96 On the second day12 adult tickets sold and 5 child tickets sold What is the price for adult and child tickets

    asked by Hunter on March 8, 2016
  53. English

    1. In Sunflowers, van Gogh seems to show happiness. 2. In Sunflowers, it seems that van Gogh shows happiness. 3. It seems that van Gogh shows happiness in Sunflowers. -------------------- Which one is similar to #1, #2 or #3? Can #1 be changed into #2 or

    asked by rfvv on September 8, 2017
  54. Ap Chem

    If in an experiment we're working with Mg, HCl acid, and H20. We stick the magnesium in the acid mixed with water and the Mg dissolves. One of the products is hydrogen gas. If the water in the tube is evaporated, the other product, a white salt remains.

    asked by Justyna on October 22, 2006
  55. finance

    Aunt Sallys foods is a full line producer of ready to use jarred food. Their products are well received in the market place competing with other brands as ragu and heinz. Consider the following expansion opportunity for Aunt Sally. Sally is considering

    asked by umi on November 12, 2011
  56. math

    In a bag of candy, there are five green candies for every two red candies. If there are 35 total candies in the bag, which of the following is the total number of green candies in the bag? i solve it but i do not know if is correct,so please can you check

    asked by rally on April 27, 2013
  57. Math

    I am trying to help my child with this problem and I have no idea what to do to solve this word problem. Paul used 1 1/4 gallons of paint to cover 3/8 of the walls in his living room. How many gallons of paint will Paul need to paint all the walls in his

    asked by Jason on January 15, 2016
  58. Intermediate Algebra

    Joe can paint a room in 6 hours while Sue can paint the same room in 5 hours. Working together, how long would it take them to paint the room? A) What does the variable stand for? x stands for the amount of hours to paint the room. B)Write the equation.

    asked by Jennifer on February 11, 2009
  59. ocean county college

    A 150 g sample of metal at 55.0 C raises the temperature of 150 g of water from 23.0 C to 35.0 C. Determine the specific heat of the metal in J/g C. Hint: #1 First find heat absorbed by water using formula q = mass x specific heat x change in temp (of

    asked by adina on March 21, 2010
  60. English--Edgar Allen Poe

    I need some help with some questions about an excerpt from "The Tell-Tale Heart" by Edgar Allen Poe: "True! --nervous --very, very dreadfully nervous I had been and am; but why will you say that I am mad? The disease had sharpened my senses --not destroyed

    asked by Esmerelda on December 20, 2014
  61. algerbra 1

    4. Your profit P is determined by subtracting the cost C, the amount of money it costs to operate a business, from the revenue R, the amount of money you earn from selling your product. Profit can be represented algebraically by the equations: Profit =

    asked by Connie on November 16, 2011
  62. macroeconomics

    Can someone point me in the right direction on how to solve this? 1. Suppose you have an economy with two factors of production (capital and labor), and suppose that capital's share of national income is 40% and that labor's share is 60%. Assume also that

    asked by Robson on September 15, 2012
  63. math

    The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 34 cm when the weight is 3 kg, what is the distance when the weight is 9 kg? 22. Find the variation constant and an equation of

    asked by algebra on May 15, 2011
  64. math

    Farmer joe had 3 animals, he wanted to weight Lucy, Nancy and Sue. He only had a scale that started with 100kg. Now, as heavy as those animals were, none of them exceeded 100kg.so he weighted them in pairs. Lucy and Nancy weight 132 kg together and Sue and

    asked by Brendon on October 23, 2006
  65. Finding the Activation Barrier

    Q: A reaction rate has a constant of 1.23 x 10-4/s at 28 degrees C and 0.235 at 79 degrees C. Determine the activation barrier for the reaction. A: My work thus far: ln(1.23 x 10-4/0.235)=(Ea/8.314)(1/79-1/28) -7.551=(Ea/8.314)(0.01265-0.03571)

    asked by Amy on January 31, 2013
  66. physics

    A parallel-plate capacitor has plates with an area of 450 cm^2 and an air-filled gap between the plates that is 2.30 mm thick. The capacitor is charged by a battery to 570 V and then is disconnected from the battery. How much energy is stored in the

    asked by kas on February 13, 2012
  67. government

    How has the equal protection clause been used to give women employment access? A. The Equal Rights Amendment was passed in 1982. B. Congress has passed legislation to give women equal pay for equal work. C. Congress has made it law that women must have

    asked by dbh on April 24, 2019
  68. PHYSICS

    A parallel-plate capacitor has plates with an area of 450 cm^2 and an air-filled gap between the plates that is 2.30 mm thick. The capacitor is charged by a battery to 570 V and then is disconnected from the battery. How much energy is stored in the

    asked by DAVE on February 13, 2012
  69. Temperature

    Q: A reaction rate has a constant of 1.23 x 10-4/s at 28 degrees C and 0.235 at 79 degrees C. Determine the activation barrier for the reaction. A: My work thus far: ln(1.23 x 10-4/0.235)=(Ea/8.314)(1/79-1/28) -7.551=(Ea/8.314)(0.01265-0.03571)

    asked by Amy on February 1, 2013
  70. Physics

    A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is the fractional change in a person's apparent weight: a) at the top, and b) at the bottom? I need to know if I'm doing this right. Here's my work: Equation Used: Net Force =

    asked by Ricky on January 20, 2011
  71. socials

    i have to encapsulate 3 or 4 of canadas foreign polices of the decades of the 1960's and have to have thesis statement and all has to be in pictures/drawings that represent evidence that prove my thesis. teacher show us examples and posters were all

    asked by Mohammad on December 2, 2011
  72. English

    Mark Twain used the characters his novel "Adventures of Huckleberry Finn" to show his contempt for the romantic style of literature. List three examples from the text that support the label for each character. Huck Finn- Realism Tom Sawyer- Romanticism

    asked by Jake on July 5, 2013
  73. Math

    the chocolate pie recipe needs 4 cups of flour, 4 eggs and 1.5 cups of water. to double the recipe, 30% more water should be added. How many cups of water should be added to double the recipe? How do I solve this one?

    asked by Kia on January 22, 2015
  74. Algebra

    Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

    asked by Tony on February 20, 2017
  75. Math Algebra

    Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

    asked by Tony on February 20, 2017
  76. calc

    Determine the amount of wire needed to connect poles A, B, C . Without crossing the river, so you must establish a baseline triangulate position of the poles and determine the distance.They aren't in a straight line. The following measurements are known :

    asked by Anonymous on March 24, 2018
  77. Algebra 2

    Well I'm curently taking this class as a sophmore and have taken geometry freshmen year of high school and also I am taking physics at the same time and in math class when I'm asked to factor i go absolutley nuts because guessing numbers is just no my

    asked by HELP ME! on May 8, 2009
  78. ICT

    I need to write an essay to explain 'why companies use logos'. Help me. Companies' logos help sell their products. Long before they can read, small children recognize the McDonald's big M and know that it means hamburgers and treats. Think about other

    asked by jamie on June 12, 2006
  79. Capital Markets

    You work for an underwriter. The underwriter asks you to ¡§strip¡¨ a portfolio of treasury bond. The treasury bonds in question are all identical, they have 5 years to maturity, pay an annual coupon of 7.25% per year, payable annually, and they are

    asked by joe on February 28, 2007
  80. English 152

    I need to sentence level this paragraph and I'm not sure if I'm correct. A counter-swirl had caught Farquhar and turned him half around; he was again looking into the forest on the bank opposite the fort. The sound of a clear, high voice in a monotonous

    asked by Cameron on September 23, 2010
  81. trig

    If sin(t) = -2/48 and cos(t) < 0 what is the value of cos(t) to the nearest thousandth? If sin(t) = -14/34 and cos(t) < 0, what is the value of tan(t) to the nearest thousandth? If tan(t) = -15/19 and sin(t) < 0, what is sin(t) to the nearest thousandth?

    asked by Jared Smith on November 14, 2011
  82. Future

    What do I have to do to make it to Yale like you see I have a best friends she all perfect and all. She have awards over 70 (no joke), have a scholorship (for chruch), and she is a good writer and a artist, plus she gets VERY good grades. She wants to go

    asked by Laruen on November 29, 2011
  83. Math (Integrals) (Using given method)

    I would like to solve the ∫sin^2(pix) dx Using the given substitution identity: sin^2(x) = (1/2)(1-cos2x) This is what I did so far: ∫sin^2(pix) let u = pix du = pi dx (1/pi)∫sin^2(u)du Applying the identity is where I'm lost on how to continue

    asked by Ray on May 9, 2017
  84. Precalculus

    The 8th term in an arithmetic sequence is 5, and the sum of the first 10 terms is 20. Find the common difference and the first term of the sequence. Alright so in an arithmetic squence the difference d between any two successive numbers is constant. So if

    asked by Trudy on January 20, 2007
  85. Physics

    A 20.0-kg crate sits at rest at the bottom of a 20.0 m -long ramp that is inclined at 40 ∘ above the horizontal. A constant horizontal force of 290 N is applied to the crate to push it up the ramp. While the crate is moving, the ramp exerts a constant

    asked by Klas on November 14, 2017
  86. COM155

    Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. Bold each adverb. Underline each adjective. Compare the event to one or more similar events. When comparing, use at

    asked by Anonymus on August 3, 2011
  87. chem

    posted this question before and wanted to know if I had gotten the right answers. We have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given. a.)

    asked by Sam on December 3, 2006
  88. Chemistry

    Hi Dr. Bob, this is a chemistry question. I don't know how to go about solving this problem: What is the pH of the solution created by combining 11.40 mL of the 0.10 M NaOH(aq)with 8.00 mL of the 0.10 M HC2H3O2(aq)? Here's what I have so far: (0.10M

    asked by Yo on October 28, 2009
  89. Chemistry

    In a particular redox reaction, BrO– is oxidized to BrO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Two half reactions: 1.) Cu^2+ --> Cu^+ 2.) BrO^- --> BrO3^- Balanced: 1.) Cu^2+ +e^- --> Cu^+

    asked by miaow on April 15, 2012
  90. chem

    Intensity = 84,250 M-1 * [Li+] + 1.75 If the intensity of your unknown sample is 90, what is the concentration of Li+ in the analyzed sample? 90= 84,250 M-1 * [Li+] + 1.75 88.25 = 84,250 M-1 * [Li+] 1.05 E-3 M = [Li+] If 5 mL of the original unknown sample

    asked by Anonymous on July 13, 2010
  91. math

    A test had 200 questions .Each correct answer carried 2 marks.Each wrong answer carried -1/2 marks and unanswered question fetched no marks .Ajay attempted all the question in the test and he scored 360 marks.What would his marks be, if for each correct

    asked by rachel on November 28, 2014
  92. Math

    A man left 3/7 of his money to his wife, 1/2 of the remainder to his brother, and the rest he divided equally among his three children. If each of his children received $400, how much did his wife receive? I did this: Let the money be: x Wife received:

    asked by Samiya on December 3, 2016
  93. wRITINg

    This experience has been more than fulfilling; it has shown me the road to something greater than responsibility, time management and responsibility. Children are the future and we impact the hope of the future today by our showing the many qualities that

    asked by Rica on October 22, 2011
  94. physics (the algebra bit)

    ok my question I'm trying to solve this for a m1 a = m2 g - m2 a - m1 g sin theta - (Mu kinetic)m1 g cos theta my text book gives me this a = (m1 + m2)^-1 (m2 g - m1 g sin theta - (Mu kinetic) m1 g cos theta) ok I don't see how I get to this point tand

    asked by physics (the algebra bit) on July 30, 2009
  95. revised essay (ignore previous post)

    I added more to this essay. Can you read and see if the essay is okay. Tell me where I can fix. THANKS! PS: I messed up on the post below. Does anyone know how I can delete/edit a post? In reality, society is comprised of people that fall in one of three

    asked by bob on July 30, 2006
  96. Math

    in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many

    asked by anonymous on March 9, 2015
  97. experimental probability

    you spin a spinner 50 times. it lands on red 8 times, yellow 12 times, green 20 times, and blue 10 times. based on the results, what is the experimental probility of its landing on green or yellow? thanks I will be happy to critique your work on this. i

    asked by dillon on April 13, 2007
  98. PHYSICS PLEASE HELP !!!!!

    An object with a mass of 3.7 kg slides in the positive x direction across a horizontal surface with a coefficient of kinetic friction of 0.24. During its slide a force of 364 Newtons acts on it in the positive x direction while a force of 44 Newtons acts

    asked by Amanda on October 27, 2011
  99. Math (Slope and Concavity of vector)

    I am given a vector function (in other words) : (2cos(t) + cos(2t))i + (2sin(t) + sin(2t)j + 0k Compute the slope dy/dx and concavity d^2x/(dx^2) at t = pi/3. I understand that finding the slope of a vector is possible by using dy/dx such that

    asked by Ray on November 12, 2017
  100. 6th grade geo

    in which area would you find coal veins? in contrast to the southern uplands and the highlands, the central lowlands of Scotland which of the following is an accurate statement about the way that the welsh economy has changed in the late twentieth century

    asked by ♥rebel•stupidity=kathy on April 12, 2012

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