Newest questions and responses by Rita
  1. computer

    What is the formal name of Internet

    asked on May 13, 2018
  2. geography

    What is glacier

    asked on May 13, 2018
  3. physics

    Describe an experiment to determine the saturation vapour pressure of water in the temperature range 25 degree Celsius to 70 degree Celsius. Sketch the curve you would expect to obtain

    asked on May 13, 2018
  4. physics

    Explain why ice is formed on the aluminium lumps and not on the walls of the beaker

    asked on May 13, 2018
  5. physics

    How would you determine the value of the specific latent heat of steam in the laboratory? What precautions are necessary to obtain an accurate results

    asked on May 13, 2018
  6. physics

    Explain the statement: the saturation vapour pressure of water at 60 degree Celsius is 149.4 mm of Mercury. Thanks

    asked on May 13, 2018
  7. physics

    What is meant by the statement that the specific latent heat of steam is 2260000jkg

    asked on May 13, 2018
  8. physics

    Explain why food can be cooked more rapidly by boiling it in salt water than by boiling it in pure water

    asked on May 13, 2018
  9. physics

    What are the differences between evaporation and boiling

    asked on May 12, 2018
  10. physics

    Pls help me. Explain the following a. When methylated spirit is poured on the skin, it has cooling effect, b. A piece of ice at 0 degree Celsius cools a drink more effectively than the same mass of cold water at 0 degree Celsius, c Ice floats on water, d.

    asked on May 12, 2018
  11. physics

    Describe an experiment to determine the boiling point of a small quantity of a liquid

    asked on May 12, 2018
  12. physics

    A piece of copper of mass 300 g at a temperature of 950 degree Celsius is quickly transferred to a vessel of negligible thermal containing 250 g of water at 25 degree Celsius. If the final temperature of the mixture is 100 degree Celsius calculate the mass

    asked on May 12, 2018
  13. physics

    Pls help me God will bless you all. A piece of copper ball of mass 20 g at 200 degree Celsius is placed in a 50 g of water at 30 degree Celsius, ignoring heat losses, calculate the final steady temperature of the mixture. Specific heat capacity of

    asked on May 12, 2018
  14. maths

    Heat energy

    asked on May 12, 2018
  15. maths


    asked on May 12, 2018
  16. physics

    Pls help pls help me solve. Dry steam at 100 degree Celsius is bubbled into 500 g of water originally at 20 degree Celsius. What will be the temperature of the water after 30 g of steam has condensed? ( specific heat capacity of water =4200,specific latent

    asked on May 12, 2018
  17. physics

    What mass of ice at -14 degree Celsius will be needed to cool 200 cm of an orange drink from 25 degree Celsius to 10 degree? (specific latent heat of fusion of ice=336000,specific heat capacity of ice=2100 specific heat capacity of water=4200

    asked on May 12, 2018
  18. Math

    Which expression are equivalent to 5+4.2-(-3)? 5+(-4.2)-3 5-(-4.2)+3 5-4.2-3 5+(-4.2)-3

    asked on February 14, 2018
  19. physics

    Calculate the angular velocity of a swinging pendulum whose length is 125cm

    asked on January 14, 2018
  20. Physics

    When a 2Kg block of metal at 600°C is put into water at its boiling point, 0.5 kg of steam is released. Find the specific heat capacity of the metal?

    asked on March 16, 2017
  21. Math

    If it is 750 calories per hour how many hours would a person have to jump rope in order to lose 1 lb ?

    asked on December 11, 2016
  22. Math

    One picked 21/2 times as many apples as a second man. A third man picked half as many as the second man. Together they picked a total of 240 apples. How many apples were picked by each man.

    asked on December 7, 2016
  23. Physics

    A siren emits a sound of frequency 1200 kHz. With which frequency is it received by a car moving at a speed of 20 m/s. a) Away from the siren? b) Towards the siren?

    asked on November 25, 2016
  24. math algebra

    if f(x) = x+1/x^2-9 and g(x) = x/x-3, find a) the domain of f(x) b) the domain of g(x) c) (f+g) (x) d) the domain of (f+g) (x)

    asked on November 19, 2016
  25. Science

    When is the end of the world

    asked on November 14, 2016
  26. maths

    rita had 5/6 of cake.she ate 2/3 of it .what part of the cake did she eat?

    asked on August 16, 2016
  27. Probability and Statisics

    Suppose that 20% of the adult women in the United States dye or highlight their hair. We would like to know the probability that a SRS of size 200 would come within plus or minus 3 percentage points of this true value. In other words, find probability that

    asked on June 20, 2016
  28. maths

    a circular pool is 300 and height is 250 find the radius

    asked on June 10, 2016
  29. Algebra

    sorry I posted the last question wrong. The question is Simplify 6 over the square root of 3+2.SOrry Thanks

    asked on April 29, 2016
  30. Algebra

    Could you please help me with this question? Simplify 6/Square root of 3-2. Also, could you help me with the steps on how to figure it? Thank you. a.4/square root of 3 b. 12-6 to the square root of 3 c. Square root of 3-2 d. 3

    asked on April 29, 2016
  31. statistics

    Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected from the production line. Each DVD player is determined to be defective or non-defective. a. What is the probability that none

    asked on April 24, 2016
  32. English

    What are the reasons why boys should not help at the kitchen?

    asked on February 5, 2016
  33. Language Arts

    “Train Tune” by - Louise Bogan Back through clouds Back through clearing Back through distance Back through silence Back through groves Back through garlands Back by rivers Back below mountains Back through lightning Back through cities Back through

    asked on February 3, 2016
  34. Language Arts

    "Full Fathom Five" by - William Shakespeare Full fathom five thy father lies; Of his bones are coral made; Those are pearls that were his eyes; Nothing of him that doth fade But doth suffer a sea change Into something rich and strange. Sea nymphs hourly

    asked on February 3, 2016
  35. Language Arts

    "Full Fathom Five" by - William Shakespeare Full fathom five thy father lies; Of his bones are coral made; Those are pearls that were his eyes; Nothing of him that doth fade But doth suffer a sea change Into something rich and strange. Sea nymphs hourly

    asked on February 2, 2016
  36. Math

    The graph below shows the sales of a popular song each week it was in a Top 40 song chart. which statement most accurately describes the slope of the graph A. The sales increased by 1 hundred thousand every 2 weeks. B. The sales decreased by 1 hundred

    asked on January 27, 2016
  37. Math

    A swimming pool was filled with 600 gallons of water in 20 minutes. What was the rate at which the pool was filled A.25 gallons per minute B.30 gallons per minute *** C.50 gallons per minute D.150 gallons per minute A swimming pool was filled with 600

    asked on January 27, 2016
  38. Math

    The sum of the digits of a two-digit number is 14. The number formed by reversing the digits is 36 more than the original number. What is the original number?

    asked on November 13, 2015
  39. Chemistry

    A solution of NH3 in water has a pH of 11.17. Calculate it's molarity

    asked on October 18, 2015
  40. trig

    The angle relative to the horizontal from the top of a tree to a point 12 feet from its base(on flat ground) is 30*. Find the height of the tree.

    asked on September 30, 2015
  41. kunwar

    why their is gap between railtracks of rail

    asked on September 21, 2015
  42. Chemistry

    Prepare 250ml of 0.2M phosphate buffer of pH 6.4.starting from Na2HPO4,NaH2PO4,0.129N NaOH solution.

    asked on July 10, 2015
  43. algebra

    The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.31 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round

    asked on February 9, 2015
  44. english

    a humbly request (from or by)rita in this sentence i use from or by plz tell me quick i have test in tution ???????

    asked on November 17, 2014
  45. Math-urgent-

    What's 11/12 divided by 3/4 in repeated subtraction?

    asked on October 30, 2014
  46. ap chem

    an unknown gaseous hydrocarbon reacts with oxygen to form CO2 and H2O, DETERMINE HEAT OF FORMATION FOR THE HYDROCARBON. the density of the mixture of CO2 and H2O at 1 atm and 200 degree celsius is 0.751g /L and heat of reaction is equal to -2044.5 KJ /MOL

    asked on October 11, 2014
  47. Algebra

    Please Help Me with this problem:Ozark Furniture Company can obtain at most 3000 board feet of maple lumber for making its classic and modern maple rocking chairs. A classic maple rocker requires 15 board feet of maple, and a modern rocker requires 12

    asked on September 29, 2014
  48. statistics

    Suppose that the scores on a reading ability test are normally distributed with a mean of and a standard deviation of . What proportion of individuals score more than points on this test

    asked on September 20, 2014
  49. early childhood education


    asked on August 5, 2014
  50. early childhood education


    asked on August 5, 2014
  51. eCONIMIC

    2. The Theory of the Firm document, the Friedman article, and the information in chapter 4 argue that the main goal of a firm in a market economy is to maximize profit (shareholder wealth) over the long term. However, SEC regulations require U.S.

    asked on July 24, 2014
  52. math

    The sale force of a business consist of 10 men and 10 women A production unit of 6 people is set up at random what is the probability that it will consist of 4 men and 2 women

    asked on July 3, 2014
  53. Business Math

    Compute the simple interest. Assume 1 month to be of a year. Round your answer to the nearest cent. Principal Rate Time Interest $1,025 4.5% 16 months

    asked on April 14, 2014
  54. math

    Two of the sides of a right angled triangle are 5m nd 12m.find the length of the third side(there are two possible answers)

    asked on January 6, 2014
  55. Math

    Find the least common denominator for the following fractions: 3/4, 19/20, 1/6, 3/5, 8/15

    asked on October 27, 2013
  56. Discrete Mathematics

    Determine whether the given argument is valid: If Socrates was a philosopher, then he wasn’t a historian. Socrates was a historian. So Socrates was not a philosopher.

    asked on September 22, 2013
  57. math

    Define a variable and write an inequality for each of the following. A. When 3 times a number is decreased by 8, the result is at least 2 times the number. B. Ignatz, the Airedale, and Angus, the Scottie, collect bones. Ignatz has 5 more than Angus. They

    asked on July 15, 2013
  58. math

    A. In 1 year Kristen will be four times as old as Danielle. Ten years from then Kristen will only be twice as old as Danielle. How old is Kristen now? B. The greater of two integers is 4 times the lesser. Of the lesser integer is increased by 12, the

    asked on July 14, 2013
  59. math

    1. The largest of five consecutive integers is twice the smallest. Find the smallest integer. 2. When the sum of three consecutive integers is divided by 9 the result is 7. Find the three integers. 3. If each of three consecutive integers is divided by 3,

    asked on July 14, 2013
  60. sociology

    using feminism, show how Facebook has made an impact on today's technologically-advanced society.

    asked on July 11, 2013
  61. physics

    why weight of gold varies at 2 different places like panna and ladakh (physics)

    asked on June 12, 2013
  62. maths

    michael has 10 pairs of black socks,8 pairs of white socks&7 pairs of green socks everything is mixed in a drawer. as there is no light he is not able to identify the colour of the socks . how many of the socks will he have to take to match 1 pair

    asked on June 12, 2013
  63. statistics

    A sample of n = 7 scores has a mean of M = 5. After one new score is added to the sample, the new mean is found to be M = 6. What is the value of the new score? (Hint: Compare the values for ƩX before and after the score was added.

    asked on June 9, 2013
  64. statistics

    14) A population of N = 20 scores has a mean of µ = 15. One score in the population is changed from X = 8 to X =28. What is the value for the new population mean?

    asked on June 8, 2013
  65. physics

    A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm×2cm×3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum

    asked on March 22, 2013
  66. maths

    a and b are positive numbers that satisfy the equation 1/a−1b=1/a+b. Determine the value of a^6/b^6+b^6/a^6.

    asked on March 22, 2013
  67. maths

    The angles in triangle ABC satisfy 6sin∠A=3√3sin∠B=2√2sin∠C. If sin^2∠A=ab, where a and b are coprime positive integers, what is the value of a+b?

    asked on March 22, 2013
  68. maths

    Let P=(p1,p2,…,p7) be a permutation of the integers 1,2,…7. For how many permutations P are all seven sums S1=p1,S2=p1+p2,…,S7=p1+p2+⋯+p7 not multiples of 3? Details and assumptions A permutation is a rearrangement of the entire set of objects.

    asked on March 22, 2013
  69. Physics

    How much work must be done on a 500-kg car to accelerate it from 29-km/hr to 112-km/hr?

    asked on March 6, 2013
  70. resume

    I am not a english speaker!!!!!!!! i am writing a resume is this statement correct: I am introducing my work: Student focus teaching professional with instructional experience and multicultural knowledge. Currently one of three teachers at Grovetown High

    asked on February 23, 2013
  71. english

    an interjection is always

    asked on February 20, 2013
  72. earth

    a suggestd answer to a question is a what

    asked on February 6, 2013
  73. Springfield

    Given the fact that there is no national religion in the United States, what application do the ethics of religious testaments have on the average American criminal justice practitioner?

    asked on January 30, 2013
  74. Physics

    A baseball whose mass is 0.25kg is struck by a bat. just before impact, the ball is traveling horizontally ay 40m/s to the left and it leaves the bat at an angle of 30 degrees above the horizontal with a speed of 60m/s. if the ball and bat were in contact

    asked on November 26, 2012
  75. physics

    An airplane taxis onto the runway going at 10 m/s.if it can accelerate at 3.0 m/s square and its take-off speed is 90 m/s, what length of runway will it need?

    asked on November 25, 2012
  76. physics

    An airplane taxis onto the runway going at 10 m/s.if it can accelerate at 3.0 m/s square and its take-off speed is 90 m/s, what length of runway will it need?

    asked on November 25, 2012
  77. Chemistry

    Suppose you dissolve 10 grams of HCl gas in 250 ml of water initially at 25 C, what will the final temperature of the solution be?

    asked on October 24, 2012
  78. Math

    The area of Egypt is about 386,700 square miles. The area of Wyoming is about 97, 818 square miles. How many times larger is Egypt than Wyoming? Do I multiply, divide or add?

    asked on October 9, 2012
  79. algebra

    One side of a trianle is 2cm shorter than the base,x. The other side is 8cm longer than the base. What lenghts of the base will allow the perimeter of the trianlge to be at least 30cm

    asked on September 1, 2012
  80. Math

    2^z=1/16 find value of z

    asked on August 22, 2012
  81. geometery

    how long does a piece of wire need to measure to get 18" diameter?

    asked on July 31, 2012
  82. Calc

    How much money will we have in 6 months if we invest $1000 into an account earning 8% compounded continuously? How long will it take the $1000 to double? What is the effective rate for 8% compounded continuously that would produce the same accumulated

    asked on July 15, 2012
  83. math

    lisa put one sheet each of blue, green, tan, white and gold paper into a printer. she forgot the order of the colors. what is the probability of lisa's printing on white paper?

    asked on May 21, 2012
  84. finite math

    what is the cost to install new carpet in an 15' by 21' room if the price of the carpet including installation is $14.50 a square yard?

    asked on March 14, 2012
  85. eng

    What is the pronoun in this sentence: Me Smith gave it one more try before giving up on the mower How does the noun function and what is the pronoun class?

    asked on March 1, 2012
  86. english

    I need help with my one paragraph (8 to 12 sentences in length) assignment. My biggest problem I believe is my topic sentence (which must be the first sentence of the paragraph). Also I need help with transitioning between one of my sentences. The

    asked on February 28, 2012
  87. algebra

    ceate a quadratic equation with the given solutions 8i and -9i

    asked on January 3, 2012
  88. post

    retire in 30 yrs. annual deposits in ira to accumulate 450,000 in 30 years at 10% per year average what is the annual contribution?

    asked on November 17, 2011
  89. Macroeconomics

    According to Classical theory, what are the appropriate fiscal and monetary policies during a recession? According the Classical theorists, what should the government do to reduce unemployment?

    asked on October 25, 2011
  90. Macro-econiics

    If prices are flexible, what occurs when there is a surplus of widgets? If prices are flexible, what occurs if there is a shortage of trinkets?

    asked on October 25, 2011
  91. Math

    X;9, 3, 7, 11, 6. Y;11, 2, 15, 4, 9. Whats the value. The strength. Direction and shared varience

    asked on September 26, 2011
  92. chem

    A solution prepared by dissolving 20.2 mL of CH3OH in 100mL of water @ 25 celcius. The final volume of the solution is 118 mL. Calculate the % by mass. density CH3OH[0.782g/mL], H20[1g/mL] @ room temp.

    asked on July 22, 2011
  93. math

    find the coordinates of the point where the tangent to the curve y=x^3 +x +2 at the point (1,4) meets the curve again. [ans:-2,-8] pls help me i don't understand the question....

    asked on July 22, 2011
  94. trig


    asked on June 27, 2011
  95. Pre Calc

    the graph f(x)=cos x Which gives the graph of g(x)=-2cos[3(x+(pi/3))]-5 write the equation of g(x) in terms of f(x). Is the question basicly asking for me to do g(f(x))?

    asked on June 12, 2011
  96. english

    what is a direct performative aspect? (as in poetry or drama)

    asked on June 9, 2011
  97. AP Chemistry

    write the keq expression for the following reaction and determine the value of the Keq at 25degree celcius: MnO2(s)+4H+(aq)Mn2+(aq)+2H2O(l)+Cl2(g)

    asked on April 24, 2011
  98. math

    the pea data is;2,3,4,5,6 and the frequency is ; 7,9,5,3,1 find the mean, median, mode and midrange number of peas per pod

    asked on April 7, 2011
  99. math

    Some households were questioned about the numebr of can openers they possessed. The results are indicated in the frequency table shown below: # of openers; 0,1,2,3,4 and frequency;1,8,11,7,1 a. does this dtat appear to be skewed? explain b. How many

    asked on April 6, 2011
  100. critical cognition

    Can someone help me evaluate this hypotheses? Evaluate the following hypothese using the five criteria ( The Scientific Method ) for a good scientific explanation. If the hypothesis is inadequate, formulate a new hypotheses and discuss why it is better. A.

    asked on March 24, 2011


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