Questions Asked on
March 14, 2016

  1. Math

    1. The two rectangles are similar. Which is the correct proportion for corresponding sides? the two rectangles are 4 by 12 and 8 by 24. thanks! A) 12/8=24/4 B) 8/4=24/12 C) 12/4=8/24 D) 4/12=24/8 Is the answer C? I'm not quite sure about it but that's what

    asked by Tim
  2. world history pls pls help help

    How were the Aztec and Inca civilizations different in their public works projects? The Aztecs focused on agricultural innovations, while the Incas focused on road construction. The Aztecs focused on road construction, while the Incas focused on

    asked by Oscar
  3. physics

    figure 3.1 shows a rectangular concrete slab of weight 18000N. It rests on a brick wall and is the roof of a bus shelter. The concrete slab is 3.0 m wide. The wall is 2.5 m from the front of the concrete slab and 0.50 m from the back. The cables behind the

    asked by Atta
  4. Maths

    The 18th term of an A.p is 25.(a) find it's first term when the common difference is 2.(b) what term of an A.p gives 49

    asked by Aliyu
  5. Language

    I am a native of North America by Chief Dan Geirge. Man must love fully or he will become the lowest of the animals. It is the power to love that makes him the greatest of them all…for he alone of all animals is capable of love. Love is something you and

    asked by Help!
  6. english

    13. Which of the following sentences contains a comma splice? A. Our friend, who travelled from Tennessee, was quite tired when he arrived. B. We need help with organization, structure, and spelling. **C. The pots clanged to the kitchen floor, the kitten

    asked by help
  7. Algebra 2

    Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with the price P of each doll. The company sold 1,800 dolls when $34,000.00 was spent on advertising, and the price of a doll was set

    asked by Sandra
  8. Math

    Alice earns 1.5 times her hourly rate for each hour she works after 40 hours in a week. She worked 50 hours this week and earned $660. What is her normal hourly rate? I know her average rate is $13.20, but I know that's not what I need to find and I

    asked by Haley
  9. calculus

    water is pouring into a conical cistern at the rate of 8 m^3/minute. If the height of the inverted cone is 12 meters and the radius of its circular opening is 6 meters, how fast is the water level rising when the water is 4 meters depth?

    asked by Anonymous
  10. Math

    20% of the children in sport club play tennis 25% of the children who play tennis also play rounder there are 8 children in the club who play both tennis and rounder how many children are there in the sport club together?

    asked by Sebastian
  11. world history pls pls help help

    What did special religious observances in both the Aztec and Spanish calendars provide for people? Work and income Education and training Law and justice Fun and entertainment is it d pls help

    asked by Oscar
  12. english

    II. By the end of Romeo and Juliet, Paris and Romeo, both of whom loved Juliet, are dead. The two characters, however, are very different. Write an essay comparing and contrasting the two men. The introduction of your essay should include an

    asked by jess
  13. english help please!!

    Read the following excerpt from H.G. Wells' The War of the Worlds, and answer the question that follows: The planet Mars, I scarcely need remind the reader, revolves about the sun at a mean distance of 140,000,000 miles, and the light and heat it receives

    asked by Oscar
  14. introduction to psikologj

    The __________ Gestalt principle explains why the figures, $$$AAA###, are perceived as three groups instead of nine separate figures. A. Closure B. Continuity C. Similarity D. Proximity

    asked by htc
  15. math help pls pls

    The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is −0.7. Analyze the following statement: High blood pressure is caused by not eating vegetables. Is this a reasonable conclusion? No; blood pressure and

    asked by Oscar
  16. calculus

    The surface area of a sphere initially zero increases uniformly at the rate of 26 cm^2/seconds. Find the rate at which the radius is increasing at the end of 2 seconds.

    asked by Anonymous
  17. calc

    A poster is to contain 50 square inches of printed matter with margins of 4 inches at the top and bottom and 2 inches at each side. Find the OUTER dimensions if the total area of the poster is the smallest possible.

    asked by o
  18. Chemistry

    at 500K, Kc for the reaction:H2 +D2 gives 2HD is 3.6 what is the value of Kc for 2HD gives H2 +D2

    asked by Yashika
  19. Algebra HELP PLEASE

    A cylinder has a radius of 4x + 2 and a height of 5x — 4. Which polynomial in standard form best describes the total volume of the cylinder? A.80pix^3+144pix^2+84pix+16pi B.20pix^2+26pix+8pi **** C.80pix^3+144pix^2+84pix-16pi

    asked by Cassidy
  20. mATH

    Brittany is checking whether the pool she wants to buy will fit in her backyard. The pool with the patio measures 4 m by 5 m. Refer to the diagram below. a) Write an algebraic expression, in factored form, for the shaded area. b) When Brittany measures her

    asked by Anonymous
  21. AP Physics

    At their closest approach, Venus and Earth are 4.2x10^10m apart. The mass of Venus is 4.87x10^24kg, the mass of Earth is 5.97x10^24kg, and G=6.67x10^-11Nm2/kg2. What is the force exerted by Venus on Earth at that point?

    asked by Anonymous
  22. Health

    What is the exchange of gases between the lungs and the blood? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above i'm lost please help me.

    asked by Martin1162
  23. psychology

    Because you are bored one afternoon, you decide to try a little experiment. You open your eye very wide, extend your thumb, and then poke yourself in the e ure. Aside from being very foolish and in alot of pain, you may learn something about your eye when

    asked by lily
  24. mathematics

    A train takes 5mins to cover a distance of 3km between two stations P and Q. Starting from rest at P, it accelerates at a constant rate to a speed of 40km per hour and maintains this speed until it is uniformly brought to rest at Q. If the train takes

    asked by Michael
  25. Physics

    A train moving at a constant speed of 100km/h travels east for 40min, then 30o east of north for 20 min, and finally west for 30min. What is the train's average velocity for the trip? The answer is 30 km/h (E 40 N) but I keep getting 66.6 km/h (E 30 N)

    asked by lomonoyan
  26. math

    1. what is the term for data that are grouped closely together? a. outlier b. liner c. positive d. clustering 2. what association would you expect if you was graphing height and weight ? a. position b. nonlinear c. negative d. none of these 3. what

    asked by UNKNOWN
  27. Health

    What might happen if you lost a lot of your platelets? A. You might bleed for a longer time.

    asked by Help pls quick
  28. Health

    What is the exchange of gases between the blood and tissue cells? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above A?

    asked by Martin1162
  29. Math

    How are hexagons a subcategory of a polygon?

    asked by Bonnie the Horse
  30. english

    what is the meaning of the Root bell

    asked by joseph
  31. social studies

    To which system of government is the federal system most similar? A - The Unitary system B - The confederal system C - The Unitary System D - The confenderal System ******

    asked by Blake
  32. Chemistry

    How do I prepare 1liter of a 93.1% w/w solution of sulfuric acid using 98% sulfuric acid and water?

    asked by Pam
  33. maths

    The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .

    asked by komal
  34. Physics

    A copper cylinder is initially at 20.0 oC. At what temperature in oC will its volume be 0.39 % larger than it is at 20.0 oC? The linear coefficient of expansion of copper is 28.6x10-6¢XC-1

    asked by Desperate Student
  35. Maths

    9.9 rounding to the nearest meter

    asked by Bob
  36. English

    1. I'm worried about my English. - Why don't you practice speaking more? 2. I'm worried about English. - ( ) (Is this correct without 'my' before 'English? What is the difference between #1 and #2? What will be the answer to the question 2?)

    asked by rfvv
  37. chemistry

    If the solubility of gas in water is 5.0g/L when the pressure of the gas about the water is 2.0 atm, what is the pressure of the gas above the water when the solubility of the gas is 1.0 g/L?

    asked by Lori
  38. Chemistry

    3. The Haber¡VBosch process for fixation of nitrogen is one of the more important chemical reactions ever invented. Without the invention of this process, which is used to make ammonia for fertilizer, the world¡¦s population would not be as large as it

    asked by Chastity
  39. Language arts, all right?

    (During the break between classes, LEE approaches CHANDRA, who is getting a book out of her locker.) LEE: Hi, Chandra. CHANDRA: Hi, Lee. Are you getting used to this new school yet? LEE (hesitantly): Well, I’m finding my classes all right, but…

    asked by Cameron
  40. math

    Jorge has prepared his science project on a piece of poster board that has an area represented by the trinomial x2 + 5x – 50. a) What are the dimensions of the board? b) Write an expression for the perimeter of the board. c) What is the actual perimeter

    asked by Anonymous
  41. Health

    In order to reproduce, female sex cells must be fertilized by ________. A. Sperm B. Androgens C. Testosterone D. All of the above A? i'm just making sure i don't want to get a bad grade

    asked by Martin1162
  42. Geometry

    Please explain how I am supposed to get this I really don't understand, but I think that I know the answer. Thanks! 1. A conveyor belt carries supplies from the first floor to the second floor which is 12 feet higher. The belt makes a 60 degree angle with

    asked by Blair
  43. intro to computers

    Which logging category does not appear in Event Viewer by default?

    asked by Anonymous
  44. Health

    Endocrine glands ________. A. Do not have ducts to carry their product to a surface B. Do not have ducts to retain their product below surface C. Have ducts that carry their secretory product to a surface D. Have ducts to retain their secretory product

    asked by Martin1162
  45. About Drama

    1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. **?? b. The Grand Canal in China is a man-made waterway, still used, that is the oldest

    asked by Etta
  46. Math

    Juan is making the shape of a rhombus. the first three angles are 80 degrees 80 degrees and 100 degrees what is the measure of the fourth angle? A. 60 B. 100

    asked by keykat
  47. accounting,economics, mathematics,business studies

    Identity three courses or study field you are interested in following after grade 12

    asked by Anonymous
  48. Chemistry

    If the percent (mass/mass) for a solute is 6% and the mass of the solution is 300 g., what is the mass of solute in solution?

    asked by Lori
  49. Heath

    Shortly after quitting a smoker will A. Develop shortness in breath B. Regain their senses of smell and taste C. Lose circulation in their hands and feet D. Develop rapid Heart beats**

    asked by Tyler
  50. math

    F(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps. I honestly have no idea how to do this. Can someone please explain what I have to do?

    asked by sage
  51. Math

    I have a moving truck that gets 12 klms per gallon how car would you go on a 40g tank

    asked by Mike
  52. science

    When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........

    asked by rohit
  53. Health

    What is the trachea commonly called? A. Voice box B. Vocal cord C. Windflute D. Windpipe A? i don't get this please HELP ME!!!

    asked by Martin1162
  54. Chemistry

    We did a titration of calcium hydroxide lab in chemistry, once with and once with edta, we have to calculate the solubility for both, and the ksp, for the hcl I did (concentration)*(Volume of hcl used) then that answer divided by two divided by the amount

    asked by Dan
  55. Science

    using the equation c3h5+5o2=3co2+4h2o, calculate the mass of c3h8 that can produce 100g of h2o

    asked by Abednego
  56. world history pls pls help help

    What caused the downfall of Ghana? a) Climate change and Berber battles b) Songhai invasions and disease c) Internal revolts d) Depletion of the salt mines is it b or c

    asked by Oscar
  57. Math

    If a punch recipe contains 40% of ginger-ale 25% of Orange Juice 20% of pineapple juice does 15% of sorbet how many cups of sugar are used in 8 cups of punch

    asked by Molly
  58. chemistry

    Suppose that the microwave radiation has a wavelength of 12 cm . How many photons are required to heat 255 mL of coffee from 25.0 ∘C to 62.0 ∘C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g⋅K) , as

    asked by christina
  59. math

    As dry air moves upward, it expands and in so doing cools at a rate of about 10C for 100m rise, up to about 12 km. a) If the ground temperature is 220, write a formula for the temperature at height x km. b) What range of temperature can be expected if a

    asked by samantha
  60. Chemistry

    Hi! My name's Isabow! can someone please help with this question? Thanks in advance :3

    asked by Isabow
  61. physics

    find the angle of projection at the horizontal range is twice the maximum height of a projecyile

    asked by junoo
  62. ELA

    WHAT TYPE OF WRITING IS THIS (pick on of these:cause&effect,compare&contrast,sequence,chronological order,problem&solution,descriptive) Volcanoes are a feared and destructive force for good reason. A volcano is like a pressure valve for the inner earth,

    asked by Caitlyn
  63. chemistry

    at certain altitude in the upper atmosphere, the temperature is estimated to be -100 degree celsius and the density just 10^-9 that of the earth's atmosphere at STP. Assuming a uniform atmosphere at STP. Assuming a uniform atmospheric composition, what is

    asked by taylor
  64. Calculus Related Rates

    A balloon, 50 feet from an observer, is rising at 20 ft/sec. At 5 seconds after lift off 1. How fast is the distance between the observer and the balloon changing? 2. How fast is the angle of elevation changing? I need help on both questions. Thanks in

    asked by Sally
  65. algebra

    a class recorded the number of movies that each student watched during the summer. draw a histogram to accuratley display this data.

    asked by alicia
  66. Physics

    A uniform disk with mass 6 kg and radius 1.8 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force 31.5N is applied to the rim of the disk. The force direction makes an

    asked by Desperate Student
  67. math

    The demand function for a product is p=20−5q where p is the price in dollars when q units are demanded. Find the level of production that maximizes the total revenue and determine the revenue. q= units R= $

    asked by ken
  68. chem

    What is the pH at the titration of 40 mL of 1.5 M Tartaric acid with 30ml of 0.6 M NaOH?

    asked by Evelyn
  69. Physics

    An airplane propeller is 1.1 m in length (from tip to tip) and has a mass of 2.8 kg . When the airplane's engine is first started, it applies a constant torque of 8.1 N⋅m to the propeller, which starts from rest. What is the angular acceleration of the

    asked by Desperate Student
  70. phyics

    dicusselastic collision in one dimension.Obtain expression for velocities of two bodies after such a collision

    asked by Priti
  71. Physics

    A car starts from rest accelerate uniformly until it reaches a velocity of 30m/s after traves with uniform velocity for 15s and is being brought to rest in 10 with a uniform retardation.dEtermine the following (a) the acceleration of the car.(b) the

    asked by Omotola
  72. Maths

    a survey showed that 50 students were surveyed. 42 liked football, 15 liked tennis, 12 liked both football and tennis. How many students did not like either football or tennis?42 take away 12 = 30 15 take away 12 = 3 therefore 33 students like either one

    asked by jenny
  73. science

    What is density of acetone at 23°C

    asked by anjali
  74. Physics

    A small 0.13 g bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 0.3 g and is

    asked by Desperate Student
  75. Electromagnetism

    four 240ohms light bulb are connected in series, what is the total resistance of the circuit and what is their resistance if they are connected in parallel

    asked by Donita
  76. English Literacture

    In To Kill A MockingBird book by Harper Lee. What is the Boo Radley game? Who plays it and how do the different characters feel about it? In your response refer closely to the text to build a convincing argument.

    asked by Hannah
  77. Calculus Related Rates

    Two people leave from the same spot and walk at 4 ft/sec going north and 5 ft/sec northwest. At 30 seconds, how fast is the distance between them changing??

    asked by Hailey
  78. Physics

    A nail driven into a board increases in temperature. If we assume that 88.6 % of the kinetic energy delivered by a 2.3-kg hammer with a speed of 7.80 m/s is transformed into heat that flows into the nail and does not flow out, what is the temperature

    asked by Desperate Student
  79. math

    the population of the world in the year 1650 was about 500 millions ,and in the year 2010 was about 6756 million .assuming that the population of the world grows exponentially ,find the equation for the population P(t) in millions in the year t

    asked by dlamini zanele
  80. Physics

    If the air temperature is the same as the temperature of your skin (about 30.0 oC), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0kg

    asked by Desperate Student
  81. math

    Point A=(0,0)and B=(3,0).Which of the following choices of C will make traingle ABC a right traingle? I try to work it with vector for whe I subtract (0,0) to (3,0) and gives me (-3,0) this only give me straight line.

    asked by karabo
  82. English

    Social studies is fun/difficult/easy/interesting/exciting. Math Is _________. Science is _________. -------------------------------- Other than the adjectives above, what other adjectives can we use for the blank? Can you name suitable adjectives?

    asked by rfvv
  83. math

    you need 2 gallons of paint to paint a mural. you already have 3/8 gallon yellow paint and 1/4 blue paint

    asked by Anonymous
  84. chem12

    2HI(g)--H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= -2x H2= x I2=x equilibrium

    asked by George
  85. Math

    I need help on a question. 30 is 75% of what number? I got it wrong on the homework and I can't really show my work on here since i cross multipled but it's okay if you can't help me.

    asked by Cure Smith
  86. math

    Julie wants to have a 90 average in her math class at the end of the year. She is trying to determine what she needs to make on her final exam for this to work. Everything is weighted equally and she currently has a 85 for her quiz average, a 80 for her

    asked by hallie
  87. English Citations

    Hi, I am writing an intext citation MLA style. My source has two authors (a husband and wife) with the same last name. Perdu owl shows me how to make an intext citation with 2 or more authors, but it does not indicate what to do if the two authors have the

    asked by Dawn
  88. biology

    1.intermediate waters is caused by? 2.deep water currents are important because? 3. water that sinks are? 4.water that rises are?

    asked by anonymous
  89. math

    Susie wants to make some hot cereal for breakfast.The directions say to use 3 cups of water with 1 cup of cereal to make 4 servings.Susie only wants 1 serving.How much cereal should she use?

    asked by sandra
  90. math

    If you place $2,000.00 in a saving account with an interest rate of 4.5% month versus an account with a rate of 3.75% month, how much more interest could you earn in that month using the first account?

    asked by don
  91. Trigonometric Identities

    Verify/prove that: sinAcosA/1-cosA = sin^2/tanA-sinA

    asked by Kid
  92. Trigonometric Identities

    Verify/prove that: (cotA+cotB)/(tanA+tanB)+(1-cotAcotB)/(1-tanAtanB) = 0

    asked by Kid
  93. Health ASAP HELP

    Hey. My mom is grilling me to get this test done. Please help. Some of the chemicals in tobacco products cause cancer. These products are called... (1 point) A. Carcinogens B. Stimulants*** C. Nicotine substitutes D. Cessation devices

    asked by No one special
  94. Social studies

    What was the impact of the New Deal programs on Georgians? Can anyone give me a link to help me?

    asked by Amber
  95. 11th grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

    asked by vicky
  96. Health

    In addition to the urinary tract, what is considered an excretory organ? A. Heart B. Skin C. Larynx D. Muscles C?

    asked by Martin1162
  97. Algebra

    Find ALL triples of positive numbers c

    asked by Katie
  98. Math

    How many bags of fertilizer would I need to cover 1.68 acres

    asked by Monica
  99. Physics

    A concrete slab of mass 400 kg accelerates down a concrete slop inclined at 35degree. The kenetic friction b/n the slab and slope is 0.60.Determine the acceleration of block.

    asked by Yaekob
  100. maths -quadratic eqn

    one of the roots of the quadratic equation x^2-(4+k)x+12=0 fine, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.

    asked by p1
  101. Trigonometric Identities

    Verify/prove the following: (sinA+tanA)/(1+secA) = sinA ______________________________ tanu = 1+sinu-cos^2u/cosu(1+sinu) __________________________________ cotu = (2+cscu/secu)-2cosu ______________________________ tanAsinA/tanA+sinA = tanA-sinA/tanAsinA

    asked by Kid
  102. Health

    The food molecules that cannot be ________ need to be eliminated from the body. A. Ingested B. Digested C. Regurgitated D. All of the above A? plz help don't get this quiestion

    asked by Martin1162
  103. math

    a student’s grade in a class is simply the mean of five 100-point exams a. If the student has grades of 77, 73, 97, and 89 on the first four exams, what is the students’ grade before taking the last exam? b. What is the lowest score that the student

    asked by Debbie
  104. Social studies

    Why were military and the defense industry important to Georgia? I'm not sure?

    asked by Amber
  105. science

    how does the weight placement in a rocket effect the distance

    asked by santi
  106. math

    how to right this in scientific in scientific notation. (2.74×10^7)+(5.6×10^7)=

    asked by Gina-helen
  107. physics

    A 13 gram sample of an unknown metal at 26.5°C is placed in a Styrofoam cup containing 50.0 grams of water at 88.6°C. The water cools down and the metal warms up until thermal equilibrium is achieved at 87.1°C. A 10 percent of heat lost by water is

    asked by Ehab
  108. Algebra

    What is the GCF of the terms of 8c^3+12c^2+10c ? I am confused between 2 and 2c. Which one is it?

    asked by Kaai97
  109. Math

    Using Normal Tables, Find The Probabilities Of P( -1.50 < Z < 2.50)

    asked by Biodam
  110. Physics

    Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.

    asked by vanessa
  111. Microeconomics

    You are asked to examine the market for luxury housing in the southern Westchester town of Quietville. This kind of housing is said to be a normal good. In Quietville a substantial proportion of the people who buy luxury homes are people who work in the

    asked by Josh
  112. biochem'

    A flask contains 300 ml of 0.4M NaCl. ¿How many moles of NaCl are in 15ml?

    asked by jess
  113. Algebra

    There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20. what is the area of the part of the yard that is not covered by the circle? a. 4x(5) b. 8x^2(5-pi) c. 16x(25+pi) d.

    asked by Kaai97
  114. HELP READING!!!!!!!!!!

    Poets use imagery and words with different connotations and denotations. In a paragraph, define and provide an example of imagery, connotation, and denotation. Then, explain how poets use these elements to contribute to tone in a poem. Support your answer

    asked by Girl with questions.
  115. MATH


    asked by TYSON
  116. Chemistry

    You start with a 20ml mixture of two compounds. After distillation you end up with 10ml of distillate 1 and 8.4ml of distillate 2. What is the relative volume percent of each compound in the pre-distilled mixture? (Do I just do: volume percent of

    asked by Danny
  117. Math

    please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = n(6n^2-3n-1)/2 Also, please show

    asked by Taylor
  118. Physics

    A 313 μF defibrillator capacitor is charged to 4.94×103 V. When fired through a patients chest, it loses 95 % of its charge in 40 ms. What is the resistance of the patients chest?

    asked by Anon
  119. English

    In Romeo and Juliet, why doesn't Juliet want to marry Paris? 1: She is already married 2: She is in love with Romeo 3:Paris hasn't won her affection 4:All of the above I'm torn between 2 and 4..please help. I know she is married at the end of act II, but I

    asked by Marylyn
  120. math

    Syntax error from line 1 column 53 to line 1 column 60. Unexpected '0'. expressed as the quotient of two integers in simplest form? I don't know?

    asked by Anonymous
  121. Calc/Physics

    Find the following questions at the depth of 25\text{m}. The gravitational acceleration is g = 9.8\text{m/s}^2 and the density of water is \rho = 1000\text{kg/m}^3. a. Find the hydrostatic force on a square steel plate with sides 2\text{m} placed

    asked by Paul
  122. physical chemistry

    the rate constant for a reaction at 30 degrees is found to be exactly twice the value at 20 degrees. calculate the activation energy

    asked by ntsika
  123. Chemistry

    Why does a compound with a high vapor pressure boil at a lower temperature than a compound with a lower vapor pressure?

    asked by Anonymous
  124. math

    Mrs coombs have 10 kids and need to split 5/8 of bacon

    asked by tenisha shy
  125. Chemistry

    List three ways in which the yield of ammonia in the reaction above can be improved for a given amount of H2.

    asked by Chastity
  126. Math

    y-6¡Ý12 Solve this pleae.

    asked by LOVE
  127. Maths

    How to convert 13million to scientific notation?

    asked by Lavanya
  128. 11th grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

    asked by vicky
  129. English

    In a classic tragedy what causes the downfall or destruction of the hero? A: The actions of the antagonist or villain? B: The hero's nobility and royal bloodline? C: The hero's personal defect in their lives? I pick c is this correct..thank you

    asked by Marylyn
  130. math

    Mrs Carter class has 30 kids and need to split 7/8 slices of bacon

    asked by tenisha shy
  131. english

    This question is based on the following passage, which contains some errors. The sentences are numbered to help you answer the question. (1) As soon as Loraine arrived in town, she phoned Dee. (2) However Dee was not home. (3) Discouraged, by this Loraine

    asked by help
  132. math

    Five runners are entered in a race. Assuming there are no ties, in how many different ways can first and second places be awarded?

    asked by pj
  133. English

    In Romeo and Juliet, why doesn't Juliet want to marry Paris? A: She is all ready married B: She is in love with Romeo C: Paris hasn't won her affection D: All of the above I'm torn between B and D. Please help...this paper has been haunting me...I need to

    asked by Marylyn
  134. Health

    If you don't like another person's qualities it is best not to spend time with them? True False I think it is true...Is this correct?

    asked by Marylyn
  135. maths-equadratic eqn

    one of the roots of the quadratic equation x^2-(4+k)x+12=0 find, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.

    asked by p1
  136. math

    Mrs Carter class is having a pizza party and have 15 kids and need to split 5/8 of pepperoni

    asked by tenisha shy
  137. math

    The cloth has an area of 20 square feet. What could be the dimensions of the piece of cloth?

    asked by red
  138. Health

    Why does the blood returning to the heart have very little oxygen in it? A. The heart is not pumping oxygen fast enough . B. The cells throughout the body use the oxygen .

    asked by Help pls quick
  139. Health

    Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds B?

    asked by Martin1162
  140. life orientation

    identify three courses or study fields

    asked by silent
  141. Health

    Which organ is part of both the respiratory system in the digestive system? A. Epiglottis B. Nose C. Larynx

    asked by Help pls quick
  142. Biology

    Number of ATP by oxidative phosphorylation from a 24 carbon fatty acid? I have 96 because fatty acids go to CoA (2ATP) and the Krebs (22ATP). Glucose has 6C and so you add 2+22ATP and multiply by 4 to get 96. Is this right? If not, how do I figure this

    asked by Anonymous
  143. physics

    After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between

    asked by tom
  144. physics

    Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.

    asked by tom
  145. math

    In Mrs.Marshall's classroom, 6/7 of the students play sports. Of the students who play sports, 4/5 also play an instrument. If there are 35 in her class how many play sports and an instrument?

    asked by Anna
  146. Language Art's HELP ASAP!

    12.)Which of these strategies would be most effective in helping conclusions about characters in a play? A.)Trying to picture each character's costumes B.)Focusing on one character's lines in particular C.)Observing characters' interactions with one

    asked by #FreeGucci
  147. Health

    Which profession should a person who suffers from chronic asthma probably stay away from? A. Criminal attorney

    asked by Help pls quick
  148. English

    In Act II we see Friar Lawrence dealing with herbs and flowers and talking about their chemical properties. This is what literary device? 1:Simile 2:Foreshadowing 3:Personification My answer is this correct? Thank you

    asked by Marylyn
  149. English

    Shakespeare is known for writing in what style? 1: Prose 2:Lambic Pentameter 3: Parliament My pick is #2 is this correct?

    asked by Marylyn
  150. solomon mahlangu high

    Identify three courses or study fields you are interested in following after grade12 write them down in order of preference

    asked by martha
  151. history

    list a emotional, and social benefit of physical activity

    asked by day
  152. probability theory

    in how many ways could a band of singers and 5 drummers be selected from 4 singers and 6 drummers.of a band of 7 members are to be selected from a team of 4 singers and 6 drummers.find the probability of including 2 singers

    asked by mojisola
  153. English

    Sonnet 130 by Shakespeare My mistress’ eyes are nothing like the sun; Coral is far more red than her lips’ red; If snow be white, why then her breasts are dun; If hairs be wires, black wires grow on her head. I have seen roses damask’d, red and

    asked by Justine
  154. Physics

    What amount of energy is needed to change 1 kg of O degrees Celsius ice to 10 degrees Celsius water?

    asked by Logan
  155. physics

    A 313 μF defibrillator capacitor is charged to 4.94×103 V. When fired through a patients chest, it loses 95 % of its charge in 40 ms. What is the resistance of the patients chest?

    asked by shawn
  156. Math

    Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and

    asked by Hi
  157. ratios/algebra

    During class elections 64 students voted for candidate A .if the ratio of votes for candidate a is to the votes for candidate B was 8:5,how many votes did candidate B receive?

    asked by chris
  158. Physics HW Plz help

    What is the frequency of a blue light with a wavelength of 487nm?

    asked by Student Lexi
  159. english help please!!

    Read the following paragraph and answer the question that follows: Musical theatre changed my life. When I was a child, I was always a problem for my parents. I never wanted to go to school, study my homework, or do my chores. No one knew how to control

    asked by Oscar
  160. child development

    Activity I can do for Intasc Standard 3: Learning Environment and for Intasc Standard 2- Learning Difference For #2 I did "Identifying Colors."(Bananas are yellow, cherries are red) what can i do for #3

    asked by Reina Bonilla
  161. physics 11th class

    Calculate the power of a crane in watts which lifts a man of 100kg to a height of 10m in 20sec

    asked by Naman
  162. Health

    The ________is about the size of a walnut and encircles the urethra as it leaves the urinary bladder. A. Testis B. Gonad C. Thyroid gland D. Prostate gland D?

    asked by Martin1162
  163. Drama

    [Piedmont, later that day outside the stable...] What does this line tell the reader? a. which character are onstage **?? b. where and when the scene takes place c. how the characters are to act d. whether this is a comedy or tragedy

    asked by Etta
  164. Geometry

    Triangle ABC and

    asked by Susanne
  165. math

    Eben rolls two standard number cubes 36 times. Predict how many times he will roll a sum of 4.

    asked by Anonymous
  166. Maths

    20 pupils,8 males, 3 males wear glasses whats the probability that the first student is mals and wears glasses?

    asked by Sinead
  167. Geometry

    Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains, leave the station at the same time, after

    asked by Ashley
  168. math

    A T-Rex has two children. Their ages are consecutive integers that total 33. How old are they both?

    asked by kelton
  169. math

    Luis draws 1 card from a deck, 39 times. Predict how many times he draws an ace. John and O'Neal are playing a board game in which they roll two number cubes. John needs to get a sum of 8 on the number cubes to win. O'Neal needs a sum of 11, if they take

    asked by Anonymous
  170. Math

    Arrange these numbers from least to greatest: 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end text

    asked by Marc
  171. Biology

    How much ATP energy would you get from a tripeptide that, upon hydrolysis and deamination, makes two acetyl CoA and one pyruvate molecule and undergo aerobic respiration?

    asked by Anonymous
  172. Science Experiment Help (pt 2)

    did the experiment (correctly this time), still need help with the answer to this question: What other mixture can be separated by crystallization? thnx for the help!

    asked by Aly
  173. English

    In classical tragedy what causes the downfall or destruction of the hero? 1: The actions of the antagonist or villain 2:The hero's nobility and royal bloodline 3: The hero's personal defect in their lives My choice is #2 is this correct?

    asked by Marylyn
  174. Language

    of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China.•• b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in the

    asked by Help!
  175. Health

    What does estrogen promote? A. Development of testes B. Development of breasts C. Development of lips D. All of the above i don't know this one

    asked by Martin1162
  176. Math

    How many possible lunch combinations can I choose from with 12 meats, 20 side items, 7desserts, and 8 drinks?

    asked by Lillian
  177. math

    The ratio of cats to dogs at jazzy Jen's pet store is 3 to 5 .If there are 24 animals at the pet store,how many of them are cats?

    asked by lilly
  178. Working with children with special needs

    A teacher wants to know why Ben, a preschooler, wakes up every morning at about 3:00 and refuses to go back to sleep. The teacher should

    asked by Camryn
  179. MATH

    1. What data are represented by the stem-and-leaf plot below? 3 | 7 8 9 4 | 1 3 7 5 | 2 4 Key: 4 | 1 means 41 a. 37, 38, 39, 41, 43, 47, 52, 54 b. 73, 83, 93, 14, 34, 74, 25, 45 c. 7, 8, 9, 1, 3, 7, 2, 4 d. 37, 38, 39, 14, 34, 74, 25, 45 2. Find the mode

    asked by HELP ASAP
  180. Math (geometry)

    Earth's diameter at the equator is about 7926 miles. A jet flies 550 miles per hour. How long would it take the jet to fly halfway around the equator?

    asked by Skylar(7th grade)
  181. English

    What's your personality? What are you like? 1. I'm kind of introverted. 2. I'm kind of introvert. 3. I'm kind of introvertish. 4. I'm kind of extroverted. 5. I'm kind of extrovert. ----------------- Are the answers all grammatical? Which ones are commonly

    asked by rfvv
  182. mathslit,business,economics

    In orders to study law at bloemfontein university how many points should I get

    asked by tshimololo
  183. Math

    How many groups of 2/3 are in 2?

    asked by Amy
  184. Math

    A three-digit integer has been divided by 9. As a result, the sum of the digits decrease by 9. How many three-digit numbers possess this property?

    asked by Amitabha
  185. Math

    Given a number, a strange calculator can only do the following: multiply it by 2 or by 3, or to raise it to the power 2 or 3. Starting with the number 15, what can be obtained by applying this calculator 5 times consecutively? A) 2^8 . 3^5 . 5^6 B) 2^8 .

    asked by Amitabha
  186. Health

    The ________ develops in the pregnant female as a source of nourishment and gas exchange for the developing fetus. A. !@#$%^& B. Uterus C. Fallopian tubes D. Placenta D?

    asked by Martin1162
  187. 11th Grade physics

    Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

    asked by vicky
  188. Physics

    The mass of a star is 1.89·1031 kg and it performs one rotation in 28.9 days. Find its new period (in /days) if the diameter suddenly shrinks to 0.93 times its present size. Assume a uniform mass distribution before and after.

    asked by Bristol
  189. physic

    A concave makeup mirror is designed so that a person 29 cm in front of it sees an upright image magnified by a factor of two. What is the radius of curvature of the mirror?

    asked by megan
  190. Unscramble

    Can you unscramble these, ymrpitahl help!

    asked by Anonymous
  191. Math

    Oscar has 10 of his friends over he want to give them each 4/5 each of cake how many whole cakes does he need to feed them?

    asked by Arturo
  192. Math

    The length of a rectangle is equal to triple the width. Find the dimensions of the rectangle if the perimeter is 72 cm

    asked by Ava
  193. Math again!!!!

    What is the total cost of 2 sweaters at $13 each and 2 shirts at $8 each

    asked by Vanessa
  194. Math

    mike can drive his car 33 miles with one gallon of gas does he need to drive 15000 miles?

    asked by Katy
  195. Science

    Two equal vectors are working at a point.The resultant is equal to one of those vectors.Prove that the resultant bisects the angle between the vectors.

    asked by Julekha
  196. Math

    Alex made a sketch for a homemade soccer goal he plans to build. The goal will be in the shape of a triangular prism. The legs of the right triangles at the sides of his goal measure 4 ft and 8 ft, and the opening along the front is 24 ft. How much space

    asked by Carol
  197. Life Science

    The process by which cellular material is divided between two new cell. (2 words)

    asked by Isabella
  198. math

    In a fruit salad,12 strawberries are used for every 5 peaches. Flora uses 85 of these fruits altogether to make a large fruit salad. How many strawberries does she use?

    asked by anonymous
  199. math

    The first 5 minutes cost $3, and each minute after that costs $0.17. How much did it cost if they talked for 24 minutes.

    asked by kuna
  200. Health

    The food molecules that cannot be ________ need to be eliminated from the body. A. Ingested B. Digested C. Regurgitated D. All of the above C?

    asked by Martin1162
  201. Math Angeles

    How can you use a right angle to determine the classification of another angle

    asked by Keeyanah
  202. math

    yan gets allowance money every day. On Monday he gets 5 cents. On Tuesday he gets 12 cents. On Wednesday he gets 19 cents. On Thursday he gets 30 cents. On Friday he gets 35 cents. How much will he get on Saturday? How much will he have by the 12th day?

    asked by bea
  203. Language Arts

    Hi! Can anyone check my answers please? Which type of sentence is shown below? Meet me outside after your ballet class. A. exclamatory sentence B. declarative sentence C. interrogative sentence D. imperative sentence**** Which of the following sentences is

    asked by JDOGYO
  204. math

    marta is a sales associate at a perfume shop.she earns 400 a week plus a 4% commission on sales.write an inequality to find the minimum amount that she needs to sell to earn at least $460 in a week?

    asked by amber
  205. Chemistry-DrBob222

    Where did you get 5E-5. Is this how you set it up? 0.01 x 0.05 = 5E-4 If so, is it supposed to be 5E-4 instead of 5E-5? What is the equilibrium constant for a weak acid HA that dissociates 1% at an initial concentration of 0.05 M according to the following

    asked by Nevaeh
  206. calculus

    Find the radius of the base and altitude of a right circular cone of maximum volume that could be inscribed in a sphere at radius 10 meters.

    asked by Cheska
  207. Chemistry

    What is the mass of Na2SO4 is needed to make 1.5 L of 3.0 M solution? Na=23 g.: s = 32 g: O=16g.)

    asked by Lori
  208. Calculus

    Use the integral identity: ∫(a-1) (1/(1+x^2))dx=∫(1-1/a) (1/(1+u^2))du for a>1 to show that: arctan(a)+arctan(1/a)=π/2

    asked by Andre
  209. Geometry

    Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains leave the station at the same time, after

    asked by Ashley
  210. Chemistry-DrBob222

    Is the answer for part c 0.91? A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill

    asked by Nevaeh
  211. Pre-Calc

    If tan theta equal - square root of 22 divided by 11 and pie/2 is less than theta and theta is less than pies, what is the cos of theta in simplified rationalized form

    asked by Stephanie
  212. Chemistry-DrBob222

    I got an answer of -1.34 x 10^3 KJ/mol. A 10.00 mL aliquot of 0.100 M NaOH is added to 15.00 mL of 0.100M HCl in a coffee cup calorimeter. The initial temperature of the two dilute liquids were both 25.0 degrees C and the final temperature of the mixture

    asked by Nevaeh
  213. Happy Pi Day, 2016

    asked by Ms. Sue
  214. physics

    When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........

    asked by rohit
  215. Math

    The bottom of a shopping bag measures 8 inches by 10 inches. The bag has a height of 12 inches. How much paper is needed to make the bag? (1 point) 256 in2 296 in2 512 in2 ** 592 in2 A cube has a side length of x feet. Which expression represents the

    asked by Rayleigh
  216. math

    what is 2 1/3 plus 1 3/4? ......................................

    asked by Chip