Questions Asked on
June 21, 2014

  1. intro to chem

    A 45kg sample of water absorbs 367kJ of heat. If the water was initially 24.8ºC, what is final temperature? Please explain steps. Thanks

    asked by Carol
  2. Algebra

    Hello all! I had a quick homework question: I have to prove that the output of this always ends up as 1, regardless of the starting number: *Think of a number between 1 and 10. Add 1; double the result; add 3; subtract 4; add 5; halve the result; add 6;

    asked by y912f
  3. Spanish

    Usa ORACIONES COMPLETAS para completar estas actividades. (9) 1. ¿Tiene buena pinta? Escriba un párrafo de 4-5 oraciones para describir la foto encima de esta pregunta. Use una variedad de vocabulario y verbos. (5) Answer 2. ¿Te gusta la idea de comer

    asked by Shell
  4. Chemistry

    To prepare 100g of 19.7% by weight solution of NaOH.how many grams each of NaOH and H2O are needed?

    asked by akhmal
  5. venn diagram

    IN A CLASS OF 130 STUDENTS.85 PASSED IN MATHS, 60 PASSED IN SCIENCE, 10 FAILED IN BOTH. a) how many passed in science but failed in math b)how many failed in exactly one subject

    asked by Navami
  6. Physics

    A dart gun where you compress the spring and it shoots a rubber dart of a mass 0.122 kg. The dart is shot vertically and gains 2.50 m. a) what speed did the dart leave the toy gun? b) If the spring is compressed 0.125 m what is the elasticity coefficient

    asked by Michel
  7. English

    1. My favorite book is The Autobiography of Benjamin Franklin. It was written by Benjamin Franklin. I like it because I can learn a lot of lessons in life. 2. My favorite book is The Autobiography of Benjamin Franklin. It was written by Benjamin Franklin.

    asked by rfvv
  8. NCCU

    11. What mass of sodium benzoate should be added to 160.0mL of a 0.17M benzoic acid solution in order to obtain a buffer with a pH of 4.30?

    asked by Bri
  9. intro to chem

    Calculate the amount of heat required to heat a 3.0kg gold bar from 23 degrees Celsius to 60 degrees Celsius

    asked by Carol
  10. geometry

    Find the image of P(–2, –1) after two reflections; first , and then . A. (–2, –1) B. (–1, –6) C. (4, –9) D. (1, –5)

    asked by Anonymous
  11. chemistry Please who helps me stpe by step

    2gm of mixture hydrated sodium carbonate na2c03 /OH20 and sodium bicarbonate was dissolved in water and made up to 250cc. 25cc of this solution was titrated, using methyl orange as indicator and 22.5cc of 0.087N hcl were required for neutralization.

    asked by ken
  12. world history

    What parallels, or differences, can you identify between Athenian expansionism in the age of the Peloponnesian War and the contemporary career of the American republic

    asked by kate
  13. maths

    find the largest share when $650 is divided in the ratio 5:6:2

    asked by bbb
  14. finance

    find the amount for each ordinary annuity if there are payments of $700.00 at the end of each month into an account that pays 10% per annum, compounded monthly

    asked by roy
  15. math

    A board 3 5/8 feet long must be sawed. from a 6-foot board. how long is the remaining piece?

    asked by kn
  16. math

    A man rows to a place 48 km distance and back in 14 hours.He find that he can row 4km with the stream in the same time as 3 km against the stream.what is the rate of the stream?

    asked by sangita
  17. programming

    Temp Employer wants a program that will allow the company’s clerk to enter an employee’s name and the number of hours the employee works every month. (The number of hours worked will always be an integer). The program will display the name, numbers of

    asked by Shadowwan
  18. Math

    Wallpaper costs $12.97 per roll and a kitchen requires 9 rolls. What is the cost of the wallpaper needed to paper the kitchen?

    asked by KGk
  19. chemistry

    What is the magnitude change in pH when 1.8g of NaOH is added 1L of a solution that is 0.100M in NH3 and 0.100 in NH4Cl? Kb for NH3 1.8 * 10^-5

    asked by Anonymous
  20. math

    write an ap whose common difference is 7 what is the 17 term? what is n term

    asked by athira
  21. math

    A boat takes 90 minutes less to travel 36 km downstream then to travel the same distance upstream.If the speed of the boat in still water is 10 kmph.What is the speed of the current?

    asked by sangita
  22. calculus

    When a hammer thrower spins, the hammer generates a circle with a radius of 5 feet. When thrown, the hammer hits a screen that is 50 feet from the center of the throwing area. Let coordinate axes be introduced. If the hammer is released at (-4, -3) and

    asked by Beth
  23. math

    Sandra has a collection of beads. Of the beads, 45% are silver. She has 108 silver beads. How many beads are in her collection?

    asked by Angie
  24. accounting

    The formula for computing additional paid-in capital in excess of par is shares of stock times

    asked by nick
  25. Physics

    A stone is dropped from a height of 50 m above the ground will it has a uniform or a non-uniform speed as it moves towards the ground.

    asked by Rajkumar
  26. spanish

    Are my answers correct? Use el adverbio TAN o una forma del adjetivo TANTO para formar frases de comparación en cada instante. 10. China es un país con mucha gente (1.300.000.000 personas). Aunque es más grande, Los Estados Unidos sólo tiene

    asked by Shell
  27. programming

    I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP

    asked by Anonymous
  28. English

    1. They do a lot during the day and need the time to do it all. 2. They do a lot during the day and need the time to do them all. --------------------- Which one is right? Is 'a lot' the object of the verb 'do'? Does 'it' refer to 'a lot' in Sentence 1?

    asked by rfvv
  29. Math

    Give the least number that can be rounded to the nearest ten thousand?

    asked by Dap
  30. English

    Well, can you walk my dog? 1) You can take her to the park. -I'd like to, but I'm very busy today. ------------------------------------ What does 1) mean among the following? 2) You are allowed to take her to the park. 3) You are able to take her to the

    asked by rfvv
  31. Math

    Bottletree Bakelpery and Card Shop ordered and equal number of 12 different cards. If a total 60 cards were ordered, how many of each type of card were ordered?

    asked by KGk
  32. physics

    A sound registers 77.9 decibels on a detector. What is the intensity in W/m2? Assume the threshold of human hearing is 1.0×10-12 W/m2. Give your answer in picowatts/m2. 1 pW = 1×10-12 W/m2

    asked by allen
  33. physics

    Calculate the speed of water (in m/s) flowing from a pipe at the bottom of an open topped barrel which has a water level 138 cm high in it.

    asked by allen
  34. chemistry

    how much kg of co2 will be present in 1 ml of co2 sqample?

    asked by saundarya
  35. mathematics

    if n=p,then the order of the matrix 7X-5Z is what?explain?

    asked by nimmy baby
  36. rates

    A bus uses 18 litres of petrol to travel 90 km. At the same rate of consumption, calculate the amount of petrol needed for a 200 km journey.

    asked by waznah1301
  37. Math

    What is the greatest number that can be rounded to the nearest millions?

    asked by Dap
  38. English

    1. I got a C- on the math test. Reading: C - : C minus (right?) 2. The math problems are difficult to solve. 3. The math questions are difficult to solve. ------ Are both OK?

    asked by rfvv
  39. Physics

    An airplane is flying due south with a velocity of 26.0 m/s. a. If there is a tailwind of 27.0 m/s, what is the magnitude and direction of the actual velocity of the airplane? (a tailwind blows in the same direction as the motion of the airplane) b. If

    asked by sci-physics
  40. Maths

    The numerator of a is 5 less than the denominator. If 1 is added to both the numerator and the denominator the fraction would be 2/3. Find the fraction

    asked by Naziba
  41. physics

    Calculate the speed of a wave in m/s along a taut string with tension 139 Newtons and a mass per unit length of 3.6 grams per metre.

    asked by allen
  42. Chemistry pls clearly step step for me

    2gm of mixture hydrated sodium carbonate and sodium bicarbonate was dissolved in water and made up to 250cc. 25cc of this solution was titrated using methyl orange as indicator and 22.5cc of 0.087N hcl were required for naturalization. calculate the

    asked by ken
  43. programming oop

    I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP

    asked by Anonymous
  44. mathematics

    if n=p,then the order of the matrix 7X-5Z is 2*n ?yes (why?)

    asked by nimmy baby
  45. ap physics

    A golfer sees the green (where the hole is) at a distance of 120.0 m at heading 75.0° north of west. She also sees her teammate at a distance of 60.0 m and heading 15.0° north of east. What distance and direction would her teammate have to land the ball

    asked by mindi
  46. English

    1. What's the price of this? 2. What's price for this? 3. What's the price of the hat? 4. What's the price for the hat? --------------------------- Which questions are grammatical? Do we have to sue 'of' or 'for?

    asked by rfvv
  47. physics

    12 equal wires of same rasistance R are joined to form a cube. Find the total rasistance between corners of same edge of cube

    asked by maggi
  48. Maths

    Q1.Write the names of the two methods you use to find the HCF and LCM. Q2.Write formula to show the relation between HCF and LCM.

    asked by Pooja kumari
  49. CHEMISTRY

    Calculate the maximum work done when two moles of N2 expands isothermally from 10 litres to 20 litres at 25o C

    asked by TARUN
  50. economics

    A monopoly firm is faced with the following demand function P = 13 – 0.5Q The Marginal Cost function for the firm is given by 3 + 4Q and the total fixed cost is 4 Determine 1. The the profit maximizing output 2.The level of supernormal profit if any 3.

    asked by catherine
  51. math

    By its own claim, HFS, Inc., is world's largest hotel franchising organization. it claims to have five thousand, four hundred hotels with four hundred ninety-five thousand rooms in oven seventy countries, and more than twenty percent of the franchises are

    asked by kgk
  52. English

    I need to find a sensationalised news article homework a and then highlight sensational parts please help'!!!

    asked by Bob
  53. Ethics

    Given that many businesses are multi-national and the economy is becoming more global, discuss whether or not business ethics is possible in light of cultural relativism.

    asked by Vanessa
  54. business

    You have just received good news. You have inherited $1,000,000 from a distant relative. You have to meet two goals with the money: one, start a small business and not spend more than $250,000 in total in the next 2 years, and two, save for your retirement

    asked by Anonymous
  55. Criminal Justice - Policing

    Miranda rights apply: A. Whenever the police begin to question a person. B. When police conduct a full-blown interrogation even if the person subjected to such interrogation is not in police custody. C. When a person is taken into custody but not subjected

    asked by Pat
  56. psychology

    Which one of the following statements about intelligence is the most accurate a. Iq is a valid measurement, and environmental factors do not change mental ability b. Intelligence is mostlygenetic has the most variability between groups and is reliable

    asked by jay
  57. psychology

    Every night in cordele Georgia 24 trains crisscross the city five mile radius. Each train blowsits whistle to alert citizens that it is passing through. Because of the residents of Georgia can sleep through all the whistles a. Selective attention b. Signal

    asked by e I
  58. math

    1. The cypress trees are 60 to 80 feet long. If there are 14,285 trees at an average length of 70 feet, how many feet of wood will the company? 2. If the cost to recover the 60 to 70 foot cypress trees is $375 each and the cost to harvest the larger trees

    asked by kgk
  59. Trigonometry help

    A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. To the nearest foot how deep is the lake? Would I use the cos function giving me 23 or the sin function giving me 6 but

    asked by Anonymous
  60. physics

    What is the difference b/w longitudinal wave and transverse wave ?

    asked by ravi
  61. Physics-half way fin.

    A person was shot vertically upward from a cannon with a mass 52 kg and a speed of 35 m/s. a) what was the height according to conservation of energy and b) what was the person's total energy? (TME never changes!) a) used TMEo=TMEf height= 63 m. b.)Would I

    asked by Sasha
  62. math

    A.G.Edwards is purchasing 100 cell phones for $189.95. How much is the total purchase?

    asked by kgk
  63. math

    Perform a one-way ANOVA analysis, testing at the 0.05 level. Also, calculate the mean number of sick days for each group. Describe your results. . Group Sick days per year Placebo: 7, 4, 6, 8, 6, 6, 2, 9 Flu Shot 1: 5, 3, 3, 5, 4, 7, 3, 3 Flu Shot 2: 2, 4,

    asked by bob
  64. math

    What is the value of the variable cost ? If the break even point is $ 130, the fixed cost is $ 330, selling price per unit is $ 25,and unit of sell is $50. (3 marks)

    asked by fizz
  65. physics

    a car accelerates with an acceleration of 2m/s2 for 5secs what is its final velocity at the end of 5secs if its initial velocity is 40m/s?

    asked by gutema
  66. architecture

    what is space? what does mean a space structure? what is spacer?

    asked by gutema
  67. math

    what is the value of 8 in the largest even number using the nine digit number without repeating?

    asked by yhury
  68. English

    Question: Do you have the star Show (TV) program in the USA? What kinds of people show up in the star Show?

    asked by rfvv
  69. Math

    Givethe greatest that can be rounded to the nearest thousands?

    asked by Dap
  70. physics

    a stone is projected upward with a speed of 80.0ft/s from a 224 ft tower. find the maximum height and the speed at which it strikes the ground.

    asked by roger
  71. math

    Certain financial aid students must pas 2/3 of the courses each term in order to continue their aid. if a student is taking 18 hours, how many hours must be passed?

    asked by kgk
  72. Shakespeare, English

    Hi i need to write about 5 paragraphs about: Compare different ways that Shakespeare describes dreams in the three extracts (Puck's final speech, Clarence's Dream & Caliban's Dream) using PEE

    asked by Mohd
  73. grammar

    Tim likes soup,so Mary bought tomatoes

    asked by Wilson
  74. statistics

    The following random sample was collected: 22 33 44 6. The 80% confidence interval for the mean is? I have the answers; however, I do not know how to plug in the numbers to solve the problem.

    asked by Nicole
  75. grammar

    I please I need identify each sentece is a complex,exlamation,declarative or interrogative. Oh no! do you wantto play in the garden. in the story,the author told how useful a led can be. she play the piano. I love you. my brother baked a cake last night.

    asked by Wilson
  76. math

    Two pipes A and B can fill a tank in 3 and 6 min respectively.Starting with A both the pipes are opened alternatively each for 1 min.In what time the tank will be filled?

    asked by sangita
  77. EXCEL 2010 (again)

    I am not allowed to use the AutoSum or AVERAGE functions to work out this problem. I need to find the average of a cell range. C3:C9 contains numbers (one cell contains zeros) the range adds up to 230. To find the average I need to use the information

    asked by Trinity
  78. physics

    Oil Flows through a horizontal cylindrical pipeline with an average speed of 1.2 m/s. The pipeline has a radius of 0.5 metres. Calculate the volume of oil (in cubic metres) which flows through this pipeline in one hour.

    asked by muller
  79. math

    Create an equation you could use to calculate the cost one person spends on food for a year (assume no tax on the food), using this site. Your equation must work for any age range, and any gender

    asked by Anonymous
  80. Physics

    John exerts constant force of 120 N for 10 s. on a stalled motorcycle. The final velocity is 8 m/s after the force was applied. If original velocity was zero, what is a)change of momentum b) the impulse produced c) magnitude of the mass of motorcycle a&b)

    asked by Shontelle
  81. Mircoeconomics

    Is it true that monopolies do not exist in our economy? Please explain

    asked by Josh
  82. math

    300,30,3 what's the next number

    asked by hHannah
  83. algebra

    if f(x) = x - 7 find the following f(13) =6 f(-6) =13 f(p) = not sure how to set this one up Thank you very much

    asked by mary ann
  84. chemistry

    Can anyone explain to me the rate of disappearance and appearance? I had two problems and ive figured them out but i don't understand why they were solved this way. If the rate of appearance of Cr(SO4)3 is 1.24mol/min then what is the disappearance of

    asked by Anonymous
  85. math

    what is the value of 8 in the largest even number using the nine-digit number without repeating?

    asked by yhury
  86. Algebra/Steve

    Find three ordered pairs that satisfy the equation (x,y)= (0, (x,y)= (1,1) (x,Y)= (2,3) not sure about the zero Thank you, If steve answer this question this will be the last one for 4 month, I have brain surgery on Monday. Thank you for all you help

    asked by Mary Ann
  87. Algebra

    S={(3,2),(-4,-5),(2,-5)} domain 3,-4,2 range 2,-5

    asked by pls check